11027-83-1 6516-50-3 Alkaloid V Formosan-16-carboxylic acid, 16,17-dihydro-10,11-dimethoxy-19-methyl-2-oxo-, methyl ester, (7alpha,16beta,19alpha)- Herbaline Spiro(3H-indole-3,6'(3'H)-(1H)pyrano(3,4-f)indolizine)-4'-carboxylic acid, 1,2,4',4'a,5',5'a,7',8',10',10'a-decahydro-5,6-dimethoxy-1'-methyl-2-oxo-, methyl ester, (1'S,3S,4'S,4'aS,5'aS,10'aS)- Spiro(3H-indole-3,6'(3'H)-(1H)pyrano(3,4-f)indolizine)-4'-carboxylic acid, 1,2,4',4'a,5',5'a,7',8',10',10'a-decahydro-5,6-dimethoxy-1'-methyl-2-oxo-, methyl ester, (1'S-(1'alpha,4'beta,4'aalpha,5'aalpha,6'alpha,10'aalpha))-