Spiro[3H-indole-3,6'(4'aH)-[1H]pyrano[3,4-f]indolizine]-4'-carboxylicacid, 1,2,5',5'a,7',8',10',10'a-octahydro-5,6-dimethoxy-1'-methyl-2-oxo-,methyl ester, (1'S,3S,4'aS,5'aS,10'aS)-

7-Isocarapanaubine

Formosanan-16-carboxylic acid, 10,11-dimethoxy-19-methyl-2-oxo-, methylester, (7a,19a,20a)-

Isocarapanaubine

Spiro[3H-indole-3,6'(4'aH)-[1H]pyrano[3,4-f]indolizine]-4'-carboxylic acid,1,2,5',5'a,7',8',10',10'a-octahydro-5,6-dimethoxy-1'-methyl-2-oxo-, methylester, [1'S-(1'a,4'aa,5'aa,6'a,10'aa)]-

Isocarapanaubine

Formosanan-16-carboxylic acid, 10,11-dimethoxy-19-methyl-2-oxo-, methylester, (7a,19a,20a)-

Isocarapanaubine

Spiro[3H-indole-3,6'(4'aH)-[1H]pyrano[3,4-f]indolizine]-4'-carboxylic acid,1,2,5',5'a,7',8',10',10'a-octahydro-5,6-dimethoxy-1'-methyl-2-oxo-, methylester, [1'S-(1'a,4'aa,5'aa,6'a,10'aa)]-