Pfizer Handbook of Microbial Metabolites 



COOH 



CH2O 



CH2 / 



468 



0=C NH2 



\ / 



HOOC— CH2 C— COOH 



\ 

 CH2 



^ 



COOH 



NH 





"^^X^ 



N' 



COOH 



)0= 



NH 



Lysergic Acid 



- HO COOH 



\l 

 ^^^^ /C— CH2— COOH 

 HOOC^<: NH— R 



HO- 



COOH 



:CH2 



NH— R 



Lysergic Acid 



6N. L. Wendler, ExpeHentia 10 338 (1954). 



