ISORHYNCHOPHYLLINE (RG)

(16E,20α)-16,17-Didehydro-17-methoxy-2-oxocorynoxan-16-carboxylic acid methyl ester

(7S,16E,20R)-16,17-Didehydro-17-methoxy-2-oxocorynoxan-16-carboxylic acid methyl ester

(aE,1'S,6'R,7'S,8'aS)-6'-Ethyl-1,2,2',3',6',7',8',8'a-octahydro-alpha-(methoxymethylene)-2-oxospiro[3H-indole-3,1'(5'H)-indolizine]-7'-acetic acid methyl ester