Title of Invention: THIAZOLIDINEDIONE ANALOGS FOR THE TREATMENT OF NAFLD AND METABOLIC DISEASES Abstract: Provided herein are thiazolidinedione analogues that are useful for treating non-alcoholic fatty liver disease (NAFLD), non-alcoholic steatohepatitis (NASH), diabetes, and other metabolic inflammation-mediated disease and disorders. Detailed Description: CROSS-REFERENCE This application is a continuation of International Application No. PCT/US2020/013203, filed Jan. 10, 2020, which claims the benefit of U.S. Provisional Application No. 62/790,962, filed Jan. 10, 2019 which is incorporated by reference in its entirety. BACKGROUND Peroxisome Proliferator Activated Receptors (PPARs), which are members of the nuclear hormone receptor super family, are ligand-activated transcription factors regulating gene expression. PPARs have been implicated in autoimmune diseases and other diseases (e.g., diabetes mellitus, cardiovascular disease, gastrointestinal disease, and Alzheimer's disease). First generation thiazolidinediones approved for treatment of type II diabetes are direct activators of the PPAR gamma subtype. Newer agents work by modifying the activity of the mitochondrial pyruvate carrier. The mitochondrial pyruvate carrier (MPC) comprises two proteins, MPC1 and MPC2, that form a carrier complex in the inner mitochondrial membrane. Transport into the mitochondrial matrix is required for pyruvate metabolism and critical for a number of metabolic pathways. Modulation of MPC indirectly affects PPAR networks. BRIEF SUMMARY OF THE INVENTION In an aspect provided herein is a method of treating non-alcoholic fatty liver disease (NAFLD) and/or metabolic syndrome, comprising administering to a subject in need thereof: a therapeutically effective amount of a compound of structural Formula (I): or a pharmaceutically acceptable salt thereof wherein R1 is independently hydrogen, halogen, substituted or unsubstituted alkyl, or —OR1A; R2 is halogen, hydroxyl, or optionally substituted aliphatic; R2′ is hydrogen, or R2 and R2′ may optionally be joined to form oxo; R3 is hydrogen or deuterium; R4 is independently hydrogen, halogen, substituted or unsubstituted alkyl, or —OR4A; A is phenyl; R1A and R4A are independently hydrogen, halogen, —CF3, —CCl3, —CBr3, —CI3, —CHF2, —CHCl2, —CHBr2, —CHI2, substituted or unsubstituted alkyl, substituted or unsubstituted heteroalkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted heterocycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl. In some instances, the therapeutically effective amount of the compound comprises a dosage amount of about 62.5 milligrams (mg), about 125 mg, or about 250 mg. In some instances, the compound is administered to the subject once-daily. In another aspect provided herein is a method of treating at least one metabolic inflammation-mediated disease or disorder, comprising administering to a subject in need thereof a therapeutically effective amount of a compound of structural Formula (I): or a pharmaceutically acceptable salt thereof wherein R1 is independently hydrogen, halogen, substituted or unsubstituted alkyl, or —OR1A; R2 is halogen, hydroxyl, or optionally substituted aliphatic; R2′ is hydrogen, or R2 and R2′ may optionally be joined to form oxo; R3 is hydrogen or deuterium; R4 is independently hydrogen, halogen, substituted or unsubstituted alkyl, or —OR4A; A is phenyl; R1A and R4A are independently hydrogen, halogen, —CF3, —CCl3, —CBr3, —CI3, —CHF2, —CHCl2, —CHBr2, —CHI2, substituted or unsubstituted alkyl, substituted or unsubstituted heteroalkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted heterocycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl. In some instances, the therapeutically effective amount of the compound comprises a dosage amount of about 62.5 milligrams (mg), about 125 mg, or about 250 mg. In some instances, the compound is administered to the subject once-daily. In an aspect provided herein is a method of inhibiting hepatocyte mitochondrial pyruvate carrier (MPC), comprising contacting the MPC with a compound as described herein, including embodiments, or the structural Formula (I), or a pharmaceutically acceptable salt thereof. In some instances, the therapeutically effective amount of the compound comprises a dosage amount of about 62.5 milligrams (mg), about 125 mg, or about 250 mg. In some instances, the compound is administered to the subject once-daily. In an aspect is provided a method of improving or increasing glucose tolerance and/or insulin sensitivity, comprising administering to a subject in need thereof a therapeutically effective amount of a compound as described herein, including embodiments, or the structural Formula (I), or a pharmaceutically acceptable salt thereof. In some instances, the therapeutically effective amount of the compound comprises a dosage amount of about 62.5 milligrams (mg), about 125 mg, or about 250 mg. In some instances, the compound is administered to the subject once-daily. In an aspect is provided a method of treating or preventing a hepatic disease, disorder, or injury, comprising administering to a subject in need thereof a therapeutically effective amount of a compound as described herein, including embodiments, or the structural Formula (I), or a pharmaceutically acceptable salt thereof. In some instances, the therapeutically effective amount of the compound comprises a dosage amount of about 62.5 milligrams (mg), about 125 mg, or about 250 mg. In some instances, the compound is administered to the subject once-daily. In an aspect is provided a method of treating or preventing hepatocyte fibrogenesis, comprising administering to a subject in need thereof a therapeutically effective amount of a compound as described herein, including embodiments, or the structural Formula (I), or a pharmaceutically acceptable salt thereof. In some instances, the therapeutically effective amount of the compound comprises a dosage amount of about 62.5 milligrams (mg), about 125 mg, or about 250 mg. In some instances, the compound is administered to the subject once-daily. In an aspect provided herein, is a method of treating or preventing nonalcoholic steatohepatitis (NASH) in a subject, comprising administering to a subject in need thereof a therapeutically effective amount of a compound of Formula (I), or a pharmaceutically acceptable salt thereof. In some embodiments, the pharmaceutically acceptable salt thereof is a potassium salt. In some embodiments, the subject is suffering from fibrosis. In some embodiments, the subject is suffering from diabetes. In some embodiments, the diabetes comprises Type II diabetes. In another aspect provided herein is a method of reducing alanine transaminase (ALT) and/or aspartate aminotransferase (AST) in a subject diagnosed with a nonalcoholic fatty liver disease, the method comprising administering to the subject a therapeutically effective amount of a compound of structural Formula (I): or a pharmaceutically acceptable salt thereof wherein R1 is independently hydrogen, halogen, substituted or unsubstituted alkyl, or —OR1A, R2 is halogen, hydroxyl, or optionally substituted aliphatic; R2′ is hydrogen, or R2 and R2′ may optionally be joined to form oxo; R3 is hydrogen or deuterium; R4 is independently hydrogen, halogen, substituted or unsubstituted alkyl, or —OR4A; A is phenyl; R1A and R4A are independently hydrogen, halogen, —CF3, —CCl3, —CBr3, —CI3, —CHF2, —CHCl2, —CHBr2, —CHI2, substituted or unsubstituted alkyl, substituted or unsubstituted heteroalkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted heterocycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl. In some instances, the pharmaceutically acceptable salt comprises a potassium salt. In some instances, the therapeutically effective amount of the compound comprises a dosage amount of about 62.5 milligrams (mg), about 125 mg, or about 250 mg. In some instances, the compound is administered to the subject once-daily. In another aspect provided herein is a method of reducing hemoglobin A1c (HbA1c) in a subject diagnosed with diabetes, the method comprising administering to the subject a therapeutically effective amount of a compound of structural Formula (I): or a pharmaceutically acceptable salt thereof wherein R1 is independently hydrogen, halogen, substituted or unsubstituted alkyl, or —OR1A; R2 is halogen, hydroxyl, or optionally substituted aliphatic; R2′ is hydrogen, or R2 and R2′ may optionally be joined to form oxo R3 is hydrogen or deuterium; R4 is independently hydrogen, halogen, substituted or unsubstituted alkyl, or —OR4A; A is phenyl; R1A and R4A are independently hydrogen, halogen, —CF3, —CCl3, —CBr3, —CI3, —CHF2, —CHCl2, —CHBr2, —CHI2, substituted or unsubstituted alkyl, substituted or unsubstituted heteroalkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted heterocycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl. In some instances, the pharmaceutically acceptable salt comprises a potassium salt. Aspects disclosed herein provide methods of inhibiting hepatic mitochondrial pyruvate carrier (MPC) with reduced PPARγ agonism, as compared to pioglitazone, in a subject, the method comprising administering to the subject a therapeutically effective amount of a compound of structural Formula (I): or a pharmaceutically acceptable salt thereof. In some instances, the pharmaceutically acceptable salt thereof comprises a potassium salt. In some instances, the therapeutically effective amount of the compound comprises a dosage amount of about 62.5 milligrams (mg), about 125 mg, or about 250 mg. In some instances, the compound is administered to the subject once-daily. Disclosed herein, in some embodiments, are pharmaceutical compositions comprising a dosage amount of between about 60 milligrams (mg) and about 250 mg of the compound of structural Formula (I): or a pharmaceutically acceptable salt thereof. In some embodiments, the pharmaceutically acceptable salt comprises a potassium salt. In some embodiments, the dosage amount comprises about 62.5 mg. In some embodiments, the dosage amount comprises about 125 mg. In some embodiments, the dosage amount comprises about 250 mg. Also disclosed are methods of treating or preventing a metabolic inflammation-mediated disease or disorder, the method comprising administering the pharmaceutical composition of of a compound of Formula (I) to a subject in need thereof. In some embodiments, the subject in need thereof suffers from NASH, Type II diabetes, fibrosis, or a combination thereof. In some embodiments, the subject is prediabetic. BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1A-1C. Show the comparative results from diet-induced obese (60% HF diet) LS-MPC2−/− and WT (fl/fl) mice: Body weight (FIG. 1A); Blood glucose levels (FIG. 1B); Blood glucose AUC (FIG. 1C). FIGS. 2A-2C. Show the results after a single dose of MSDC-0602 given to LS-MPC2−/− and WT (fl/fl) mice. Blood glucose levels (FIG. 2A); Blood glucose Area Under the Curve (AUC) (FIG. 2B); Plasma insulin levels (FIG. 2C). FIGS. 3A-3B. Show the results after a single dose of MSDC-0602 given to LS-MPC2−/− and WT (fl/fl) mice. Plasma ALT concentrations (FIG. 3A); Gene expression for markers of liver injury (FIG. 3B). FIG. 4. A schematic representation of the effects of hepatocyte metabolism on exosome communication with stellate cells. FIGS. 5A-5I. Show the levels of serum miRNAs after treatment of mice with MSDC-0602: mmu-miR-29c-3p (FIG. 5A); mmu-miR-802-3p (FIG. 5B); mmu-miR-802-5p (FIG. 5C); mmu-miR-127-3p (FIG. 5D); mmu-miR-129-2-3p (FIG. 5E); mmu-miR-615-3p (FIG. 5F); mmu-miR-129-5p (FIG. 5G); mmu-miR-205-5p (FIG. 5H); mmu-miR-341-3p (FIG. 5I). (*FDR<0.05 vs LF; † FDR<0.05 vs HTF-C.) FIG. 6. Is a graphic representation of the data of thyroid hormones with MSDC-0602 in vitro. Line “A” at X=0 is MSDC-0602 itself without T3. Line “B” is T3 doses without MSDC-0602. FIG. 7. Is a graphic representation of the data of the relative binding affinities of compound MSDC-0602, the metabolite of MSDC-0602, and the two insulin sensitizers rosiglitazone and pioglitazone with PPARγ. FIG. 8. Is a graphic representation of the data of the relative binding affinities of compound MSDC-0602, the metabolite of MSDC-0602, and the two insulin sensitizers rosiglitazone and pioglitazone with the MPC. FIGS. 9A-9B. Shows the levels of change from baseline in ALT (FIG. 9A) and AST (FIG. 9B) by visit over 6 months of treatment with MSDC-0602K (62.5 mg, 125 mg, 250 mg). FIG. 10. Show NASH pathology after 19 weeks of high fat, high cholesterol, and high sugar diet in mice, as compared to mice who were fed a normal diet. DETAILED DESCRIPTION Provided herein are, for example, compounds and compositions that modulate the MPC and have reduced binding and activation of the nuclear transcription factor PPARγ. Also provided herein are, for example, methods of treating or preventing a metabolic inflammation-mediated disease or disorder (e.g., diabetes mellitus type II), metabolic syndrome, non-alcoholic fatty liver disease (NAFLD), and/or non-alcoholic steatohepatitis (NASH). NASH is characterized by a high degree of liver damage and can lead to cirrhosis, hepatocellular carcinoma, liver failure and the need for liver transplant and, potentially, liver-related death. The prevalence of NASH is growing globally. In the United States alone, an estimated 16 million people have NASH, a number which is projected to increase to 27 million by the year 2030. It is estimated that approximately half of NASH patients also have Type II diabetes, and these patients are at a high risk for poor clinical outcomes. There are currently no approved therapies for the treatment of NASH. NASH is a rapidly growing cause of end-stage liver disease and liver transplant. Currently, NASH is the second leading cause of liver transplants in the United States. The availability of liver donors is extremely limited and the economic burden is severe. In 2017, the costs per transplant were estimated to be approximately $812,500 in the United States. Additionally, in patients with several comorbidities, liver transplant may not be a viable option, or it may not equate to a beneficial outcome. NASH is currently underdiagnosed, and is often discovered incidentally, for example by blood tests showing elevated liver enzyme levels. NASH patients may be asymptomatic or suffer from fatigue, with other symptoms occurring as the liver disease advances. Diagnosis of NASH is based on the exclusion of other reasons for liver disease, such as the use of medications, viral hepatitis or excessive use of alcohol, followed by non-invasive imaging tests, such as ultrasound, Computed Tomography scan, or CT scan, and Magnetic Resonance Imaging, or MRI. Liver biopsy is currently the standard procedure for the diagnosis of NASH. There are currently no therapies approved for the treatment of NASH, creating a significant unmet need for safe and efficacious pharmacological options. Current options, which include lifestyle modification and bariatric surgery, have significant limitations. Lifestyle modifications consisting of diet, exercise and weight loss are advocated to treat patients with NASH. While these modifications may address the underlying overnutrition in NASH patients, the weight loss goal of approximately 10% that is recommended for patients with NASH is difficult to achieve and sustain due to poor adherence. For example, in a large prospective study evaluating the impact of lifestyle intervention on NASH resolution and fibrosis, only 30% achieved meaningful weight loss, and even fewer sustained the reported weight loss over time. Bariatric surgery is an effective treatment option for individuals who are severely obese. Although surgery provides for long-term weight loss, resolution of obesity-associated diseases in most patients as well as regression and/or histologic improvement of NASH, it is expensive and involves significant risks which make it impractical for widespread use. NASH is the liver manifestation of metabolic syndrome, a constellation of disorders that includes insulin resistance, Type II diabetes and obesity. Overnutrition, wherein available nutrients exceed energy needs, is a major driver of metabolic syndrome leading to an unhealthy imbalance in metabolic signals. A diet rich in processed foods with high fat and sugar content, and a sedentary lifestyle, results in a state of overnutrition which drives pathological metabolic processes in the liver. These disruptive processes may lead to excess fat deposition, inflammation, insulin resistance and cellular damage. Over time, liver cells may be replaced by scar tissue, or fibrosis, and this process may ultimately lead to cirrhosis. At this point in the disease progression, the diminished liver function may necessitate a liver transplantation or lead to liver cancer, and potentially liver-related death. Overnutrition is mediated by the mitochondrial pyruvate carrier (MPC), which regulates the rate of mitochondrial pyruvate metabolism. In the setting of overnutrition, an excess of pyruvate, an energy source for cells, is rapidly transported into the mitochondria through the MPC, leading to the modification of multiple downstream pathways including transcription factors such as peroxisome proliferator-activated receptors, or PPARs. Downstream effects of this include insulin resistance, increased fat storage, decreased fat oxidation, inflammation, cell damage and fibrosis. The MPC is a recently discovered protein complex in the inner mitochondrial membrane that mediates the rate of entry of pyruvate—an end product of carbohydrate metabolism and an important source of energy for the cell—into the mitochondria where subsequent oxidative metabolism occurs. This complex is present in the mitochondria of every cell in the body and orchestrates downstream signals that coordinate the cellular machinery, enzymatic pathways and gene expression with the nutritional state and energy need. In animal studies, liver-specific knockout of the MPC has been shown to protect against liver damage, particularly fibrosis, otherwise caused by overnutrition. Modifications of the MPC affect downstream pathways that regulate multiple cell functions. For example, slowing the entry of pyruvate into the mitochondrion results in an increase in the metabolism of amino acids such as alanine, aspartate and glutamate. Experimental NASH therapies, that function as insulin sensitizers (e.g., pioglitazone) show detrimental side effects including edema, unnecessary weight gain, and bone loss, that are thought to be caused by antagonism of the nuclear transcription factor, PPARγ. Other experimental NASH therapies (e.g., rosiglitazone) that have been shown to have reduced binding affinity to PPARγ, are less efficacious in subjects with NASH, particularly for the treatment of fibrosis in NASH patients. The present compositions and methods provide a standalone NASH therapy that is a highly specific modulator of the MPC with characterized by a significant reduction in binding affinity to PPARγ. Aspects disclosed herein provide compounds of structural Formula (I), or a pharmaceutically acceptable salt thereof, modulates the activity of the MPC can thus exert pleiotropic pharmacology in the context of overnutrition. In some embodiments, MSDC-0602K, modulates the activity of the MPC and can exert pleiotropic pharmacology in the context of overnutrition. Disclosed herein, in some embodiments, are methods of treating NASH, the treatment comprising administering a compound of structural Formula (I), or a pharmaceutically acceptable salt thereof. In some embodiments, the compound of structural Formula (I), or a pharmaceutically acceptable salt thereof, is MSDC-0602K. In some embodiments, MSDC-0602K is administered as a monotherapy. MSDC-0602K is a second generation TZD that selectively binds to the MPC and modulates the entry of pyruvate into the mitochondria. Unlike, the first generation TZDs, which are approved for the treatment of Type II diabetes, MSDC-0602K minimizes direct agonism of PPARγ, thereby reducing adverse effects caused by direct agonism of PPARγ. Thus, MSDC-0602K demonstrates the beneficial effects observed with first generation TZDs, but without the adverse effects that limit the use of first generation TZDs. By selectively targeting the MPC—the initial point of metabolic dysfunction, rather than downstream pathways, MSDC-0602K addresses the core pathology of NASH, insulin resistance, and Type II diabetes. I. DEFINITIONS The abbreviations used herein have their conventional meaning within the chemical and biological arts. The chemical structures and formulae set forth herein are constructed according to the standard rules of chemical valency known in the chemical arts. Where substituent groups are specified by their conventional chemical formulae, written from left to right, they equally encompass the chemically identical substituents that result from writing the structure from right to left, e.g., —CH2O— is equivalent to —OCH2—. The term “alkyl,” by itself or as part of another substituent, means, unless otherwise stated, a straight (i.e., unbranched) or branched carbon chain (or carbon), or combination thereof, which may be fully saturated, mono- or polyunsaturated and includes mono-, di- and multivalent radicals, having the number of carbon atoms designated (i.e., C1-C10 means one to ten carbons). Alkyl is an uncyclized chain. Examples of saturated hydrocarbon radicals include, but are not limited to, groups such as methyl, ethyl, n-propyl, isopropyl, n-butyl, t-butyl, isobutyl, sec-butyl, (cyclohexyl)methyl, homologs and isomers of, for example, n-pentyl, n-hexyl, n-heptyl, n-octyl, and the like. An unsaturated alkyl group is one having one or more double bonds or triple bonds. Examples of unsaturated alkyl groups include, but are not limited to, vinyl, 2-propenyl, crotyl, 2-isopentenyl, 2-(butadienyl), 2,4-pentadienyl, 3-(1,4-pentadienyl), ethynyl, 1- and 3-propynyl, 3-butynyl, and the higher homologs and isomers. An alkyl group can be straight or branched. Examples of alkyl groups include, but are not limited to, methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl, tert-butyl, n-pentyl, n-heptyl, or 2-ethylhexyl. An alkyl group can be substituted (i.e., optionally substituted) with one or more substituents such as halo, phospho, cycloaliphatic [e.g., cycloalkyl or cycloalkenyl], heterocycloaliphatic [e.g., heterocycloalkyl or heterocycloalkenyl], aryl, heteroaryl, alkoxy, aroyl, heteroaroyl, acyl [e.g., (aliphatic)carbonyl, (cycloaliphatic)carbonyl, or (heterocycloaliphatic)carbonyl], nitro, cyano, amido [e.g., (cycloalkylalkyl)carbonylamino, arylcarbonylamino, aralkylcarbonylamino, (heterocycloalkyl)carbonylamino, (heterocycloalkylalkyl)carbonylamino, heteroarylcarbonylamino, heteroaralkylcarbonylamino alkylaminocarbonyl, cycloalkylaminocarbonyl, heterocycloalkylaminocarbonyl, arylaminocarbonyl, or heteroarylaminocarbonyl], amino [e.g., aliphaticamino, cycloaliphaticamino, or heterocycloaliphaticamino], sulfonyl [e.g., aliphatic-SO2—], sulfinyl, sulfanyl, sulfoxy, urea, thiourea, sulfamoyl, sulfamide, oxo, carboxy, carbamoyl, cycloaliphaticoxy, heterocycloaliphaticoxy, aryloxy, heteroaryloxy, aralkyloxy, heteroarylalkoxy, alkoxycarbonyl, alkylcarbonyloxy, or hydroxy. Without limitation, some examples of substituted alkyls include carboxyalkyl (such as HOOC-alkyl, alkoxycarbonylalkyl, and alkylcarbonyloxyalkyl), cyanoalkyl, hydroxyalkyl, alkoxyalkyl, acylalkyl, aralkyl, (alkoxyaryl)alkyl, (sulfonylamino)alkyl (such as (alkyl-SO2-amino)alkyl), aminoalkyl, amidoalkyl, (cycloaliphatic)alkyl, or haloalkyl. An alkoxy is an alkyl attached to the remainder of the molecule via an oxygen linker (—O—). As used herein, an “alkenyl” group refers to an aliphatic carbon group that contains 2-8 (e.g., 2-12, 2-6, or 2-4) carbon atoms and at least one double bond. Like an alkyl group, an alkenyl group can be straight or branched. Examples of an alkenyl group include, but are not limited to allyl, isoprenyl, 2-butenyl, and 2-hexenyl. An alkenyl group can be optionally substituted with one or more substituents such as halo, phospho, cycloaliphatic [e.g., cycloalkyl or cycloalkenyl], heterocycloaliphatic [e.g., heterocycloalkyl or heterocycloalkenyl], aryl, heteroaryl, alkoxy, aroyl, heteroaroyl, acyl [e.g., (aliphatic)carbonyl, (cycloaliphatic)carbonyl, or (heterocycloaliphatic)carbonyl], nitro, cyano, amido [e.g., (cycloalkylalkyl)carbonylamino, arylcarbonylamino, aralkylcarbonylamino, (heterocycloalkyl)carbonylamino, (heterocycloalkylalkyl)carbonylamino, heteroarylcarbonylamino, heteroaralkylcarbonylamino alkylaminocarbonyl, cycloalkylaminocarbonyl, heterocycloalkylaminocarbonyl, arylaminocarbonyl, or heteroarylaminocarbonyl], amino [e.g., aliphaticamino, cycloaliphaticamino, heterocycloaliphaticamino, or aliphaticsulfonylamino], sulfonyl [e.g., alkyl-SO2—, cycloaliphatic-SO2—, or aryl-SO2—], sulfinyl, sulfanyl, sulfoxy, urea, thiourea, sulfamoyl, sulfamide, oxo, carboxy, carbamoyl, cycloaliphaticoxy, heterocycloaliphaticoxy, aryloxy, heteroaryloxy, aralkyloxy, heteroaralkoxy, alkoxycarbonyl, alkylcarbonyloxy, or hydroxy. Without limitation, some examples of substituted alkenyls include cyanoalkenyl, alkoxyalkenyl, acylalkenyl, hydroxyalkenyl, aralkenyl, (alkoxyaryl)alkenyl, (sulfonylamino)alkenyl (such as (alkyl-SO2-amino)alkenyl), aminoalkenyl, amidoalkenyl, (cycloaliphatic)alkenyl, or haloalkenyl. As used herein, an “alkynyl” group refers to an aliphatic carbon group that contains 2-8 (e.g., 2-12, 2-6, or 2-4) carbon atoms and has at least one triple bond. An alkynyl group can be straight or branched. Examples of an alkynyl group include, but are not limited to, propargyl and butynyl. An alkynyl group can be optionally substituted with one or more substituents such as aroyl, heteroaroyl, alkoxy, cycloalkyloxy, heterocycloalkyloxy, aryloxy, heteroaryloxy, aralkyloxy, nitro, carboxy, cyano, halo, hydroxy, sulfo, mercapto, sulfanyl [e.g., aliphaticsulfanyl or cycloaliphaticsulfanyl], sulfinyl [e.g., aliphaticsulfinyl or cycloaliphaticsulfinyl], sulfonyl [e.g., aliphatic-SO2—, aliphaticamino-SO2—, or cycloaliphatic-SO2—], amido [e.g., aminocarbonyl, alkylaminocarbonyl, alkylcarbonylamino, cycloalkylaminocarbonyl, heterocycloalkylaminocarbonyl, cycloalkylcarbonylamino, arylaminocarbonyl, arylcarbonylamino, aralkylcarbonylamino, (heterocycloalkyl)carbonylamino, (cycloalkylalkyl)carbonylamino, heteroaralkylcarbonylamino, heteroarylcarbonylamino or heteroarylaminocarbonyl], urea, thiourea, sulfamoyl, sulfamide, alkoxycarbonyl, alkylcarbonyloxy, cycloaliphatic, heterocycloaliphatic, aryl, heteroaryl, acyl [e.g., (cycloaliphatic)carbonyl or (heterocycloaliphatic)carbonyl], amino [e.g., aliphaticamino], sulfoxy, oxo, carboxy, carbamoyl, (cycloaliphatic)oxy, (heterocycloaliphatic)oxy, or (heteroaryl)alkoxy The term “alkylene,” by itself or as part of another substituent, means, unless otherwise stated, a divalent radical derived from an alkyl, as exemplified, but not limited by, —CH2CH2CH2CH2—. Typically, an alkyl (or alkylene) group will have from 1 to 24 carbon atoms, with those groups having 10 or fewer carbon atoms being preferred herein. A “lower alkyl” or “lower alkylene” is a shorter chain alkyl or alkylene group, generally having eight or fewer carbon atoms. The term “alkenylene,” by itself or as part of another substituent, means, unless otherwise stated, a divalent radical derived from an alkene. As used herein, an “amido” encompasses both “aminocarbonyl” and “carbonylamino”. These terms when used alone or in connection with another group refer to an amido group such as —N(RX)—C(O)—RY or —C(O)—N(RX)2, when used terminally, and —C(O)—N(RX)— or —N(RX)—C(O)— when used internally, wherein RX and RY are defined below. Examples of amido groups include alkylamido (such as alkylcarbonylamino or alkylaminocarbonyl), (heterocycloaliphatic)amido, (heteroaralkyl)amido, (heteroaryl)amido, (heterocycloalkyl)alkylamido, arylamido, aralkylamido, (cycloalkyl)alkylamido, or cycloalkylamido. As used herein, an “amino” group refers to —NRXRY wherein each of RX and RY is independently hydrogen, aliphatic, cycloaliphatic, (cycloaliphatic)aliphatic, aryl, araliphatic, heterocycloaliphatic, (heterocycloaliphatic)aliphatic, heteroaryl, carboxy, sulfanyl, sulfinyl, sulfonyl, (aliphatic)carbonyl, (cycloaliphatic)carbonyl, ((cycloaliphatic)aliphatic)carbonyl, arylcarbonyl, (araliphatic)carbonyl, (heterocycloaliphatic)carbonyl, ((heterocycloaliphatic)aliphatic)carbonyl, (heteroaryl)carbonyl, or (heteroaraliphatic)carbonyl, each of which being defined herein and being optionally substituted. Examples of amino groups include alkylamino, dialkylamino, or arylamino. When the term “amino” is not the terminal group (e.g., alkylcarbonylamino), it is represented by —NRX—. RX has the same meaning as defined above. As used herein, an “aralkyl” group refers to an alkyl group (e.g., a C1-4 alkyl group) that is substituted with an aryl group. Both “alkyl” and “aryl” have been defined above. An example of an aralkyl group is benzyl. An aralkyl is optionally substituted with one or more substituents such as aliphatic [e.g., alkyl, alkenyl, or alkynyl, including carboxyalkyl, hydroxyalkyl, or haloalkyl such as trifluoromethyl], cycloaliphatic [e.g., cycloalkyl or cycloalkenyl], (cycloalkyl)alkyl, heterocycloalkyl, (heterocycloalkyl)alkyl, aryl, heteroaryl, alkoxy, cycloalkyloxy, heterocycloalkyloxy, aryloxy, heteroaryloxy, aralkyloxy, heteroaralkyloxy, aroyl, heteroaroyl, nitro, carboxy, alkoxycarbonyl, alkylcarbonyloxy, amido [e.g., aminocarbonyl, alkylcarbonylamino, cycloalkylcarbonylamino, (cycloalkylalkyl)carbonylamino, arylcarbonylamino, aralkylcarbonylamino, (heterocycloalkyl)carbonylamino, (heterocycloalkylalkyl)carbonylamino, heteroarylcarbonylamino, or heteroaralkylcarbonylamino], cyano, halo, hydroxy, acyl, mercapto, alkylsulfanyl, sulfoxy, urea, thiourea, sulfamoyl, sulfamide, oxo, or carbamoyl. As used herein, a “bicyclic ring system” includes 8-12 (e.g., 9, 10, or 11) membered structures that form two rings, wherein the two rings have at least one atom in common (e.g., 2 atoms in common). Bicyclic ring systems include bicycloaliphatics (e.g., bicycloalkyl or bicycloalkenyl), bicycloheteroaliphatics, bicyclic aryls, and bicyclic heteroaryls. The term “heteroalkyl,” by itself or in combination with another term, means, unless otherwise stated, a stable straight or branched chain, or combinations thereof, including at least one carbon atom and at least one heteroatom (e.g., O, N, P, Si, and S), and wherein the nitrogen and sulfur atoms may optionally be oxidized, and the nitrogen heteroatom may optionally be quaternized. The heteroatom(s) (e.g., N, S, Si, or P) may be placed at any interior position of the heteroalkyl group or at the position at which the alkyl group is attached to the remainder of the molecule. Heteroalkyl is an uncyclized chain. Examples include, but are not limited to: —CH2—CH2—O—CH3, —CH2—CH2—NH—CH3, —CH2—CH2—N(CH3)—CH3, —CH2—S—CH2—CH3, —CH2—CH2, —S(O)—CH3, —CH2—CH2—S(O)2—CH3, —CH═CH—O—CH3, —Si(CH3)3, —CH2—CH═N—OCH3, —CH═CH—N(CH3)—CH3, —O—CH3, —O—CH2—CH3, and —CN. Up to two or three heteroatoms may be consecutive, such as, for example, —CH2—NH—OCH3 and —CH2—O—Si(CH3)3. A heteroalkyl moiety may include one heteroatom (e.g., O, N, S, Si, or P). A heteroalkyl moiety may include two optionally different heteroatoms (e.g., O, N, S, Si, or P). A heteroalkyl moiety may include three optionally different heteroatoms (e.g., O, N, S, Si, or P). A heteroalkyl moiety may include four optionally different heteroatoms (e.g., O, N, S, Si, or P). A heteroalkyl moiety may include five optionally different heteroatoms (e.g., O, N, S, Si, or P). A heteroalkyl moiety may include up to 8 optionally different heteroatoms (e.g., O, N, S, Si, or P). Similarly, the term “heteroalkylene,” by itself or as part of another substituent, means, unless otherwise stated, a divalent radical derived from heteroalkyl, as exemplified, but not limited by, —CH2—CH2—S—CH2—CH2— and —CH2—S—CH2—CH2—NH—CH2—. For heteroalkylene groups, heteroatoms can also occupy either or both of the chain termini (e.g., alkyleneoxy, alkylenedioxy, alkyleneamino, alkylenediamino, and the like). Still further, for alkylene and heteroalkylene linking groups, no orientation of the linking group is implied by the direction in which the formula of the linking group is written. For example, the formula —C(O)2R′— represents both —C(O)2R′— and —R′C(O)2—. As described above, heteroalkyl groups, as used herein, include those groups that are attached to the remainder of the molecule through a heteroatom, such as —C(O)R′, —C(O)NR′, —NR′R″, —OR′, —SR′, and/or —SO2R′. Where “heteroalkyl” is recited, followed by recitations of specific heteroalkyl groups, such as —NR′R″ or the like, it will be understood that the terms heteroalkyl and —NR′R″ are not redundant or mutually exclusive. Rather, the specific heteroalkyl groups are recited to add clarity. Thus, the term “heteroalkyl” should not be interpreted herein as excluding specific heteroalkyl groups, such as —NR′R″ or the like. The terms “cycloalkyl” and “heterocycloalkyl,” by themselves or in combination with other terms, mean, unless otherwise stated, cyclic versions of “alkyl” and “heteroalkyl,” respectively. Cycloalkyl and heterocycloalkyl are not aromatic. Additionally, for heterocycloalkyl, a heteroatom can occupy the position at which the heterocycle is attached to the remainder of the molecule. Examples of cycloalkyl include, but are not limited to, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, 1-cyclohexenyl, 3-cyclohexenyl, cycloheptyl, and the like. Examples of heterocycloalkyl include, but are not limited to, 1-(1,2,5,6-tetrahydropyridyl), 1-piperidinyl, 2-piperidinyl, 3-piperidinyl, 4-morpholinyl, 3-morpholinyl, tetrahydrofuran-2-yl, tetrahydrofuran-3-yl, tetrahydrothien-2-yl, tetrahydrothien-3-yl, 1-piperazinyl, 2-piperazinyl, and the like. A “cycloalkylene” and a “heterocycloalkylene,” alone or as part of another substituent, means a divalent radical derived from a cycloalkyl and heterocycloalkyl, respectively. “Cycloalkyl” is also meant to refer to bicyclic and polycyclic hydrocarbon rings such as, for example, bicyclo[2.2.1]heptane, bicyclo[2.2.2]octane, etc. A “heterocycloalkenyl” group, as used herein, refers to a mono- or bicylic (e.g., 5- to 10-membered mono- or bicyclic) non-aromatic ring structure having one or more double bonds, and wherein one or more of the ring atoms is a heteroatom (e.g., N, O, or S). Monocyclic and bicyclic heterocycloaliphatics are numbered according to standard chemical nomenclature. The terms “halo” or “halogen,” by themselves or as part of another substituent, mean, unless otherwise stated, a fluorine, chlorine, bromine, or iodine atom. Additionally, terms such as “haloalkyl” are meant to include monohaloalkyl and polyhaloalkyl. For example, the term “halo(C1-C4)alkyl” includes, but is not limited to, fluoromethyl, difluoromethyl, trifluoromethyl, 2,2,2-trifluoroethyl, 4-chlorobutyl, 3-bromopropyl, and the like. The term “acyl” means, unless otherwise stated, —C(O)R where R is a substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted heteroalkyl, substituted or unsubstituted heterocycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl. As used herein, a “carbamoyl” group refers to a group having the structure —O—CO—NRXRY or —NR—CO—O—RZ, wherein RX and RY have been defined above and RZ can be aliphatic, aryl, araliphatic, heterocycloaliphatic, heteroaryl, or heteroaraliphatic. As used herein, a “carboxy” group refers to —COOH, —COORX, —OC(O)H, —OC(O)RX, when used as a terminal group; or —OC(O)— or —C(O)O— when used as an internal group. As used herein, a “haloaliphatic” group refers to an aliphatic group substituted with 1-3 halogens. For instance, the term haloalkyl includes the group —CF3. As used herein, a “mercapto” group refers to —SH. As used herein, a “sulfo” group refers to —SO3H or —SO3RX when used terminally or —S(O)3— when used internally. As used herein, a “sulfamide” group refers to the structure —NRX—S(O)2—NRYRZ when used terminally and —NRX—S(O)2—NRY— when used internally, wherein RX, RY, and RZ have been defined above. As used herein, a “sulfonamide” group refers to the structure —S(O)2—NRXRY or —NRX—S(O)2—RZ when used terminally; or —S(O)2—NRX— or —NRX—S(O)2— when used internally, wherein RX, RY, and RZ are defined above. As used herein a “sulfanyl” group refers to —S—RX when used terminally and —S-when used internally, wherein RX has been defined above. Examples of sulfanyls include aliphatic-S—, cycloaliphatic-S—, aryl-S—, or the like. As used herein a “sulfinyl” group refers to —S(O)—RX when used terminally and —S(O)—when used internally, wherein RX has been defined above. Exemplary sulfinyl groups include aliphatic-S(O)—, aryl-S(O)—, (cycloaliphatic(aliphatic))-S(O)—, cycloalkyl-S(O)—, heterocycloaliphatic-S(O)—, heteroaryl-S(O)—, or the like. As used herein, a “sulfonyl” group refers to —S(O)2—RX when used terminally and —S(O)2— when used internally, wherein RX has been defined above. Exemplary sulfonyl groups include aliphatic-S(O)2—, aryl-S(O)2—, (cycloaliphatic(aliphatic))-S(O)2—, cycloaliphatic-S(O)2—, heterocycloaliphatic-S(O)2—, heteroaryl-S(O)2—, (cycloaliphatic(amido(aliphatic)))-S(O)2— or the like. As used herein, a “sulfoxy” group refers to —O—SO—RX or —SO—O—RX, when used terminally and —O—S(O)— or —S(O)—O— when used internally, where RX has been defined above. As used herein, the term “phospho” refers to phosphinates and phosphonates. Examples of phosphinates and phosphonates include —P(O)(RP)2, wherein RP is aliphatic, alkoxy, aryloxy, heteroaryloxy, (cycloaliphatic)oxy, (heterocycloaliphatic)oxy aryl, heteroaryl, cycloaliphatic or amino. As used herein, an “aminoalkyl” refers to the structure (RX)2N-alkyl-. As used herein, a “cyanoalkyl” refers to the structure (NC)-alkyl-. As used herein, a “urea” group refers to the structure —NRX—CO—NRYRZ and a “thiourea” group refers to the structure —NRX—CS—NRYRZ when used terminally and —NRX—CO—NRY— or —NRX—CS—NRY— when used internally, wherein Rx, RY, and RZ have been defined above. As used herein, a “guanidine” group refers to the structure —N═C(N(RXRY))N(RXRY) or —NRX—C(═NRX)NRXRY wherein RX and RY have been defined above. As used herein, the term “amidino” group refers to the structure —C═(NRX)N(RXRY) wherein RX and RY have been defined above. In general, the term “vicinal” refers to the placement of substituents on a group that includes two or more carbon atoms, wherein the substituents are attached to adjacent carbon atoms. In general, the term “geminal” refers to the placement of substituents on a group that includes two or more carbon atoms, wherein the substituents are attached to the same carbon atom. The terms “terminally” and “internally” refer to the location of a group within a substituent. A group is terminal when the group is present at the end of the substituent not further bonded to the rest of the chemical structure. Carboxyalkyl, i.e., RXO(O)C-alkyl is an example of a carboxy group used terminally. A group is internal when the group is present in the middle of a substituent of the chemical structure. Alkylcarboxy (e.g., alkyl-C(O)O— or alkyl-OC(O)—) and alkylcarboxyaryl (e.g., alkyl-C(O)O-aryl- or alkyl-O(CO)-aryl-) are examples of carboxy groups used internally. As used herein, an “aliphatic chain” refers to a branched or straight aliphatic group (e.g., alkyl groups, alkenyl groups, or alkynyl groups). A straight aliphatic chain has the structure —[CH2]v—, where v is 1-12. A branched aliphatic chain is a straight aliphatic chain that is substituted with one or more aliphatic groups. A branched aliphatic chain has the structure—[CQQ]v- where Q is independently a hydrogen or an aliphatic group; however, Q shall be an aliphatic group in at least one instance. The term aliphatic chain includes alkyl chains, alkenyl chains, and alkynyl chains, where alkyl, alkenyl, and alkynyl are defined above. The phrase “optionally substituted” is used interchangeably with the phrase “substituted or unsubstituted.” As described herein, compounds of the invention can optionally be substituted with one or more substituents, such as are illustrated generally above, or as exemplified by particular classes, subclasses, and species of the invention. As described herein, the variables R1, R2, and R3, and other variables contained in formulae described herein encompass specific groups, such as alkyl and aryl. Unless otherwise noted, each of the specific groups for the variables R1, R2, and R3, and other variables contained therein can be optionally substituted with one or more substituents described herein. Each substituent of a specific group is further optionally substituted with one to three of halo, cyano, oxo, alkoxy, hydroxy, amino, nitro, aryl, cycloaliphatic, heterocycloaliphatic, heteroaryl, haloalkyl, and alkyl. For instance, an alkyl group can be substituted with alkylsulfanyl and the alkylsulfanyl can be optionally substituted with one to three of halo, cyano, oxo, alkoxy, hydroxy, amino, nitro, aryl, haloalkyl, and alkyl. As an additional example, the cycloalkyl portion of a (cycloalkyl)carbonylamino can be optionally substituted with one to three of halo, cyano, alkoxy, hydroxy, nitro, haloalkyl, and alkyl. When two alkoxy groups are bound to the same atom or adjacent atoms, the two alkoxy groups can form a ring together with the atom(s) to which they are bound. In general, the term “substituted,” whether preceded by the term “optionally” or not, refers to the replacement of hydrogen radicals in a given structure with the radical of a specified substituent. Specific substituents are described above in the definitions and below in the description of compounds and examples thereof. Unless otherwise indicated, an optionally substituted group can have a substituent at each substitutable position of the group, and when more than one position in any given structure can be substituted with more than one substituent selected from a specified group, the substituent can be either the same or different at every position. A ring substituent, such as a heterocycloalkyl, can be bound to another ring, such as a cycloalkyl, to form a spiro-bicyclic ring system, e.g., both rings share one common atom. As one of ordinary skill in the art will recognize, combinations of substituents envisioned by this disclosure are those combinations that result in the formation of stable or chemically feasible compounds. The term “aryl” means, unless otherwise stated, a polyunsaturated, aromatic, hydrocarbon substituent, which can be a single ring or multiple rings (preferably from 1 to 3 rings) that are fused together (i.e., a fused ring aryl) or linked covalently. A fused ring aryl refers to multiple rings fused together wherein at least one of the fused rings is an aryl ring. The term “heteroaryl” refers to aryl groups (or rings) that contain at least one heteroatom such as N, O, or S, wherein the nitrogen and sulfur atoms are optionally oxidized, and the nitrogen atom(s) are optionally quaternized. Thus, the term “heteroaryl” includes fused ring heteroaryl groups (i.e., multiple rings fused together wherein at least one of the fused rings is a heteroaromatic ring). A 5,6-fused ring heteroarylene refers to two rings fused together, wherein one ring has 5 members and the other ring has 6 members, and wherein at least one ring is a heteroaryl ring. Likewise, a 6,6-fused ring heteroarylene refers to two rings fused together, wherein one ring has 6 members and the other ring has 6 members, and wherein at least one ring is a heteroaryl ring. And a 6,5-fused ring heteroarylene refers to two rings fused together, wherein one ring has 6 members and the other ring has 5 members, and wherein at least one ring is a heteroaryl ring. A heteroaryl group can be attached to the remainder of the molecule through a carbon or heteroatom. Non-limiting examples of aryl and heteroaryl groups include phenyl, naphthyl, pyrrolyl, pyrazolyl, pyridazinyl, triazinyl, pyrimidinyl, imidazolyl, pyrazinyl, purinyl, oxazolyl, isoxazolyl, thiazolyl, furyl, thienyl, pyridyl, pyrimidyl, benzothiazolyl, benzoxazoyl benzimidazolyl, benzofuran, isobenzofuranyl, indolyl, isoindolyl, benzothiophenyl, isoquinolyl, quinoxalinyl, quinolyl, 1-naphthyl, 2-naphthyl, 4-biphenyl, 1-pyrrolyl, 2-pyrrolyl, 3-pyrrolyl, 3-pyrazolyl, 2-imidazolyl, 4-imidazolyl, pyrazinyl, 2-oxazolyl, 4-oxazolyl, 2-phenyl-4-oxazolyl, 5-oxazolyl, 3-isoxazolyl, 4-isoxazolyl, 5-isoxazolyl, 2-thiazolyl, 4-thiazolyl, 5-thiazolyl, 2-furyl, 3-furyl, 2-thienyl, 3-thienyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, 2-pyrimidyl, 4-pyrimidyl, 5-benzothiazolyl, purinyl, 2-benzimidazolyl, 5-indolyl, 1-isoquinolyl, 5-isoquinolyl, 2-quinoxalinyl, 5-quinoxalinyl, 3-quinolyl, and 6-quinolyl. Substituents for each of the above noted aryl and heteroaryl ring systems are selected from the group of acceptable substituents described below. An “arylene” and a “heteroarylene,” alone or as part of another substituent, mean a divalent radical derived from an aryl and heteroaryl, respectively. A heteroaryl group substituent may be —O— bonded to a ring heteroatom nitrogen. As used herein, “cyclic moiety” and “cyclic group” refer to mono-, bi-, and tri-cyclic ring systems including cycloaliphatic, heterocycloaliphatic, aryl, or heteroaryl, each of which has been previously defined. Spirocyclic rings are two or more rings wherein adjacent rings are attached through a single atom. The individual rings within spirocyclic rings may be identical or different. Individual rings in spirocyclic rings may be substituted or unsubstituted and may have different substituents from other individual rings within a set of spirocyclic rings. Possible substituents for individual rings within spirocyclic rings are the possible substituents for the same ring when not part of spirocyclic rings (e.g. substituents for cycloalkyl or heterocycloalkyl rings). Spirocylic rings may be substituted or unsubstituted cycloalkyl, substituted or unsubstituted cycloalkylene, substituted or unsubstituted heterocycloalkyl or substituted or unsubstituted heterocycloalkylene and individual rings within a spirocyclic ring group may be any of the immediately previous list, including having all rings of one type (e.g. all rings being substituted heterocycloalkylene wherein each ring may be the same or different substituted heterocycloalkylene). When referring to a spirocyclic ring system, heterocyclic spirocyclic rings means a spirocyclic rings wherein at least one ring is a heterocyclic ring and wherein each ring may be a different ring. When referring to a spirocyclic ring system, substituted spirocyclic rings means that at least one ring is substituted and each substituent may optionally be different. The symbol “” denotes the point of attachment of a chemical moiety to the remainder of a molecule or chemical formula. The term “oxo,” as used herein, means an oxygen that is double bonded to a carbon atom. The term “alkylarylene” as an arylene moiety covalently bonded to an alkylene moiety (also referred to herein as an alkylene linker). In embodiments, the alkylarylene group has the formula: An alkylarylene moiety may be substituted (e.g. with a substituent group) on the alkylene moiety or the arylene linker (e.g. at carbons 2, 3, 4, or 6) with halogen, oxo, —N3, —CF3, —CCl3, —CBr3, —CI3, —CN, —CHO, —OH, —NH2, —COOH, —CONH2, —NO2, —SH, —SO2CH3—SO3H, —OSO3H, —SO2NH2, —NHNH2, —ONH2, —NHC(O)NHNH2, substituted or unsubstituted C1-C5 alkyl or substituted or unsubstituted 2 to 5 membered heteroalkyl). In embodiments, the alkylarylene is unsubstituted. Each of the above terms (e.g., “alkyl,” “heteroalkyl,” “cycloalkyl,” “heterocycloalkyl,” “aryl,” and “heteroaryl”) includes both substituted and unsubstituted forms of the indicated radical. Preferred substituents for each type of radical are provided below. Substituents for the alkyl and heteroalkyl radicals (including those groups often referred to as alkylene, alkenyl, heteroalkylene, heteroalkenyl, alkynyl, cycloalkyl, heterocycloalkyl, cycloalkenyl, and heterocycloalkenyl) can be one or more of a variety of groups selected from, but not limited to, —OR′, ═O, ═NR′, ═N—OR′, —NR′R″, —SR′, -halogen, —SiR′R″R″′, —OC(O)R′, —C(O)R′, —CO2R′, —CONR′R″, —OC(O)NR′R″, —NR″C(O)R′, —NR′—C(O)NR″R″′, —NR″C(O)2R′, —NR—C(NR′R″R″′)═NR″″, —NR—C(NR′R″)═NR″′, —S(O)R′, —S(O)2R′, —S(O)2NR′R″, —NRSO2R′, —NR′NR″R″′, —ONR′R″, —NR′C(O)NR″NR″′R″″, —CN, —NO2, —NR′SO2R″, —NR′C(O)R″, —NR′C(O)—OR″, —NR′OR″, in a number ranging from zero to (2m′+1), where m′ is the total number of carbon atoms in such radical. R, R′, R″, R″′, and R″″ each preferably independently refer to hydrogen, substituted or unsubstituted heteroalkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted heterocycloalkyl, substituted or unsubstituted aryl (e.g., aryl substituted with 1-3 halogens), substituted or unsubstituted heteroaryl, substituted or unsubstituted alkyl, alkoxy, or thioalkoxy groups, or arylalkyl groups. When a compound described herein includes more than one R group, for example, each of the R groups is independently selected as are each R′, R″, R″′, and R″″ group when more than one of these groups is present. When R′ and R″ are attached to the same nitrogen atom, they can be combined with the nitrogen atom to form a 4-, 5-, 6-, or 7-membered ring. For example, —NR′R″ includes, but is not limited to, 1-pyrrolidinyl and 4-morpholinyl. From the above discussion of substituents, one of skill in the art will understand that the term “alkyl” is meant to include groups including carbon atoms bound to groups other than hydrogen groups, such as haloalkyl (e.g., —CF3 and —CH2CF3) and acyl (e.g., —C(O)CH3, —C(O)CF3, —C(O)CH2OCH3, and the like). Similar to the substituents described for the alkyl radical, substituents for the aryl and heteroaryl groups are varied and are selected from, for example: —OR′, —NR′R″, —SR′, -halogen, —SiR′R″R′″, —OC(O)R′, —C(O)R′, —CO2R′, —CONR′R″, —OC(O)NR′R″, —NR″C(O)R′, —NR′—C(O)NR″R″′, —NR″C(O)2R′, —NR—C(NR′R″R′″)═NR″″, —NR—C(NR′R″)═NR″′, —S(O)R′, —S(O)2R′, —S(O)2NR′R″, —NRSO2R′, —NR′NR″R″′, —ONR′R″, —NR′C(O)NR″NR″′R″″, —CN, —NO2, —R′, —N3, —CH(Ph)2, fluoro(C1-C4)alkoxy, and fluoro(C1-C4)alkyl, —NR′SO2R″, —NR′C(O)R″, —NR′C(O)—OR″, —NR′OR″, in a number ranging from zero to the total number of open valences on the aromatic ring system; and where R′, R″, R″′, and R″″ are preferably independently selected from hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted heteroalkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted heterocycloalkyl, substituted or unsubstituted aryl, and substituted or unsubstituted heteroaryl. When a compound described herein includes more than one R group, for example, each of the R groups is independently selected as are each R′, R″, R″′, and R″″ groups when more than one of these groups is present. Substituents for rings (e.g. cycloalkyl, heterocycloalkyl, aryl, heteroaryl, cycloalkylene, heterocycloalkylene, arylene, or heteroarylene) may be depicted as substituents on the ring rather than on a specific atom of a ring (commonly referred to as a floating substituent). In such a case, the substituent may be attached to any of the ring atoms (obeying the rules of chemical valency) and in the case of fused rings or spirocyclic rings, a substituent depicted as associated with one member of the fused rings or spirocyclic rings (a floating substituent on a single ring), may be a substituent on any of the fused rings or spirocyclic rings (a floating substituent on multiple rings). When a substituent is attached to a ring, but not a specific atom (a floating substituent), and a subscript for the substituent is an integer greater than one, the multiple substituents may be on the same atom, same ring, different atoms, different fused rings, different spirocyclic rings, and each substituent may optionally be different. Where a point of attachment of a ring to the remainder of a molecule is not limited to a single atom (a floating substituent), the attachment point may be any atom of the ring and in the case of a fused ring or spirocyclic ring, any atom of any of the fused rings or spirocyclic rings while obeying the rules of chemical valency. Where a ring, fused rings, or spirocyclic rings contain one or more ring heteroatoms and the ring, fused rings, or spirocyclic rings are shown with one more floating substituents (including, but not limited to, points of attachment to the remainder of the molecule), the floating substituents may be bonded to the heteroatoms. Where the ring heteroatoms are shown bound to one or more hydrogens (e.g. a ring nitrogen with two bonds to ring atoms and a third bond to a hydrogen) in the structure or formula with the floating substituent, when the heteroatom is bonded to the floating substituent, the substituent will be understood to replace the hydrogen, while obeying the rules of chemical valency. Two or more substituents may optionally be joined to form aryl, heteroaryl, cycloalkyl, or heterocycloalkyl groups. Such so-called ring-forming substituents are typically, though not necessarily, found attached to a cyclic base structure. In one embodiment, the ring-forming substituents are attached to adjacent members of the base structure. For example, two ring-forming substituents attached to adjacent members of a cyclic base structure create a fused ring structure. In another embodiment, the ring-forming substituents are attached to a single member of the base structure. For example, two ring-forming substituents attached to a single member of a cyclic base structure create a spirocyclic structure. In yet another embodiment, the ring-forming substituents are attached to non-adjacent members of the base structure. Two of the substituents on adjacent atoms of the aryl or heteroaryl ring may optionally form a ring of the formula -T-C(O)—(CRR′)q—U—, wherein T and U are independently —NR—, —O—, —CRR′—, or a single bond, and q is an integer of from 0 to 3. Alternatively, two of the substituents on adjacent atoms of the aryl or heteroaryl ring may optionally be replaced with a substituent of the formula -A-(CH2)r—B—, wherein A and B are independently —CRR′—, —O—, —NR—, —S—, —S(O)—, —S(O)2—, —S(O)2NR′—, or a single bond, and r is an integer of from 1 to 4. One of the single bonds of the new ring so formed may optionally be replaced with a double bond. Alternatively, two of the substituents on adjacent atoms of the aryl or heteroaryl ring may optionally be replaced with a substituent of the formula —(CRR′)s—X′— (C″R″R″′)d—, where s and d are independently integers of from 0 to 3, and X′ is —O—, —NR′—, —S—, —S(O)—, —S(O)2—, or —S(O)2NR′—. The substituents R, R′, R″, and R″′ are preferably independently selected from hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted heteroalkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted heterocycloalkyl, substituted or unsubstituted aryl, and substituted or unsubstituted heteroaryl. As used herein, the terms “heteroatom” or “ring heteroatom” are meant to include oxygen (O), nitrogen (N), sulfur (S), phosphorus (P), and silicon (Si). A “substituent group,” as used herein, means a group selected from the following moieties: (A)oxo, halogen, —CF3, —CN, —OH, —NH2, —COOH, —CONH2, —NO2, —SH, —SO3H, —SO4H, —SO2NH2, —NHNH2, —ONH2, —NHC═(O)NHNH2, —NHC═(O) NH2, —NHSO2H, —NHC═(O)H, —NHC(O)—OH, —NHOH, —OCF3, —OCHF2, unsubstituted alkyl, unsubstituted heteroalkyl, unsubstituted cycloalkyl, unsubstituted heterocycloalkyl, unsubstituted aryl, unsubstituted heteroaryl, and (B) alkyl, heteroalkyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, substituted with at least one substituent selected from: i) oxo, halogen, —CF3, —CN, —OH, —NH2, —COOH, —CONH2, —NO2, —SH, —SO3H, —SO4H, —SO2NH2, —NHNH2, —ONH2, —NHC═(O)NHNH2, —NHC═(O) NH2, —NHSO2H, —NHC═(O)H, —NHC(O)—OH, —NHOH, —OCF3, —OCHF2, unsubstituted alkyl, unsubstituted heteroalkyl, unsubstituted cycloalkyl, unsubstituted heterocycloalkyl, unsubstituted aryl, unsubstituted heteroaryl, and ii) alkyl, heteroalkyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, substituted with at least one substituent selected from: (a) oxo, halogen, —CF3, —CN, —OH, —NH2, —COOH, —CONH2, —NO2, —SH, —SO3H, —SO4H, —SO2NH2, —NHNH2, —ONH2, —NHC═(O)NHNH2, —NHC═(O) NH2, —NHSO2H, —NHC═(O)H, —NHC(O)—OH, —NHOH, —OCF3, —OCHF2, unsubstituted alkyl, unsubstituted heteroalkyl, unsubstituted cycloalkyl, unsubstituted heterocycloalkyl, unsubstituted aryl, unsubstituted heteroaryl, and (b) alkyl, heteroalkyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, substituted with at least one substituent selected from: oxo, halogen, —CF3, —CN, —OH, —NH2, —COOH, —CONH2, —NO2, —SH, —SO3H, —SO4H, —SO2NH2, —NHNH2, —ONH2, —NHC═(O)NHNH2, —NHC═(O) NH2, —NHSO2H, —NHC═(O)H, —NHC(O)—OH, —NHOH, —OCF3, —OCHF2, unsubstituted alkyl, unsubstituted heteroalkyl, unsubstituted cycloalkyl, unsubstituted heterocycloalkyl, unsubstituted aryl, unsubstituted heteroaryl. (c) A “size-limited substituent” or “size-limited substituent group,” as used herein, means a group selected from all of the substituents described above for a “substituent group,” wherein each substituted or unsubstituted alkyl is a substituted or unsubstituted C1-C20 alkyl, each substituted or unsubstituted heteroalkyl is a substituted or unsubstituted 2 to 20 membered heteroalkyl, each substituted or unsubstituted cycloalkyl is a substituted or unsubstituted C3-C8 cycloalkyl, each substituted or unsubstituted heterocycloalkyl is a substituted or unsubstituted 3 to 8 membered heterocycloalkyl, each substituted or unsubstituted aryl is a substituted or unsubstituted C6-C10 aryl, and each substituted or unsubstituted heteroaryl is a substituted or unsubstituted 5 to 10 membered heteroaryl. A “size-limited substituent” or “size-limited substituent group,” as used herein, means a group selected from all of the substituents described above for a “substituent group,” wherein each substituted or unsubstituted alkyl is a substituted or unsubstituted C1-C20 alkyl, each substituted or unsubstituted heteroalkyl is a substituted or unsubstituted 2 to 20 membered heteroalkyl, each substituted or unsubstituted cycloalkyl is a substituted or unsubstituted C3-C8 cycloalkyl, each substituted or unsubstituted heterocycloalkyl is a substituted or unsubstituted 3 to 8 membered heterocycloalkyl, each substituted or unsubstituted aryl is a substituted or unsubstituted C6-C10 aryl, and each substituted or unsubstituted heteroaryl is a substituted or unsubstituted 5 to 10 membered heteroaryl. A “lower
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