| Synonyms: | PTEROPODINE;UNCARINE C;(20α)-19α-Methyl-2-oxoformosanan-16-carboxylic acid methyl ester;2'-keto-1-methyl-spiro[1,4a,5,5a,7,8,10,10a-octahydropyrano[3,4-f]indolizine-6,3'-indoline]-4-carboxylic acid methyl ester;methyl 1-methyl-2'-oxo-spiro[1,4a,5,5a,7,8,10,10a-octahydropyrano[3,4-f]indolizine-6,3'-1H-indole]-4-carboxylate;methyl 1-methyl-2'-oxospiro[1,4a,5,5a,7,8,10,10a-octahydropyrano[3,4-f]indolizine-6,3'-1H-indole]-4-carboxylate;Isospeciophylline;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-1'-methyl-2-oxo-, methyl ester, (1'S,3R,4'aS,5'aS,10'aS)- |