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′aR)-
Mitraphylline
Formosanan-16-carboxylic acid, 19-methyl-2-oxo-, methyl ester, (19α)-
Rubradinine
Rubradinin
Mitraphyllin
Ajmalicine oxindole B
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-(1′α,4′aα,5′aα,6′β,10′aβ)]-