55872-09-8

SPIRO[3H-INDOLE-3,1'(5'H)-INDOLIZINE]-7'-ACETIC ACID6'-VINYL-1,2,2',3',6',7',8',8'A-OCTAHYDRO- 4-HYDROXY-R-(METHOXYMETHYLENE)-2-OXO-,METHYL ESTER,(RE,1'S,6'R,7'S,8'AS)-