text: Yo, check it out, listen up, here's the scoop
  We talkin' 'bout quinazolinone-containing 2,3-disubstituted piperidines, a real scientific group
  Febrifugine and isofebrifugine, they got some fame
  Discovered in Dichroa febrifuga, fightin' malaria was their game
  
  Late '40s was the time when they first came through
  Research efforts started, you know it's true
  Turns out these compounds, they ain't alone
  Other hydrangea plants got 'em, they've shown
  
  Scientists been tryin' to tweak their properties, no doubt
  Cookin' up analogues, testin' 'em out
  The baddest one they found, they call it halofuginone
  It's got some serious effects, it ain't no clone
  
  Now there's a whole lotta work, a whole lotta proof
  That halofuginone, it can bust some human diseases, that's the truth
  This review right here, it's all about the literature
  Uncoverin' febrifugine's and isofebrifugine's structures, that's the picture
  
  Plus, we talkin' synthesis, practical methods, you know the deal
  Makin' these compounds, it's a big deal
  And don't forget, syntheses of analogues, they're in the mix
  This rap's about the science, droppin' knowledge, get your fix