<prompt> Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu: Passage: Isomers vane zvakasiyana zvokurapa zvivako zvakajairika; somuenzaniso, kuiswa methyl mapoka. Muzvinhu zvinonzi xanthines, theobromine, inowanikwa muchokoreti, inoshanda sechinhu chinotambanudza tsinga dzine zvimwe zvinhu zvakafanana necaffeine; asi, kana rimwe remapoka maviri emethyl rikaendeswa kune imwe nzvimbo iri pakati pemhete mbiri, isomeri yacho inonzi theophylline, iyo ine zvinhu zvakasiyana-siyana, kusanganisira bronchodilation uye anti-inflammatory action. Mumwe muenzaniso waikoku unoitika mumishonga inonyandura yakavakirwa pa phenethylamine. Phentermine chinhu chisina chiral chine simba rakaderera pane reamphetamine. Inoshandiswa somushonga unoderedza chishuvo chokudya uye ine zvinhu zvinonyaradza zvishoma kana kuti isina. Zvisinei, kurongwa kwakasiyana kweatomu kunoguma nedextromethamphetamine, iyo inonyandura zvikuru kupfuura amphetamine. Mubvunzo: Chii chinowanikwa muchocolate chine mugumisiro wakafanana nowechocolate?  <response>: theobromine 