The Veratrum Alkamines 



315 



^ XXX (R = CH 3 CH:C(CH 3 )CO-) 



XXIX (X = CH 3 -C— ) 



O 



XXXIII Cevagenine 

 XXXII (R = H) Veracevine 

 XXXIIa (R = CH 3 CH:C(CH 3 )CO-) Cevadine 

 XXXIIb (R = 3,4-(MeO) 2 C 6 H 3 CO-) Veratridine 

 XXXIIc (R=CH 3 CO-) Cevacine 



