7a,12a-Epoxy-5H-pyrido[3,4-a]pyrrolo[2,3-d]carbazol-12(8H)-one, 7-acetyl-6,7,8a,9,10,11,12b,13-octahydro-11,13-dimethyl-, (4bR,7aR,8aS,12aS,12bS)-rel-

Aspidospermidine-3-carbonitrile, 3,19-epoxy-8-oxo-1-(phenylmethyl)-, (2β,3β,5α,12S)-

Aspidospermidine-3-carbonitrile, 3,19-epoxy-1-methyl-8-oxo-, (2β,3β,5α,12S)-(±)-

rel-Methyl (3aR,5S,5aS,10bR,13aR)-5-cyano-2,3,3a,5,5a,11,12,13a-octahydro-1-oxo-5,13a-epoxy-1H-indolizino[8,1-cd]carbazole-6(4H)-carboxylate

rel-(3aR,5S,5aS,10bR,13aR)-2,3,3a,5a,6,11,12,13a-Octahydro-1-oxo-6-(phenylmethyl)-5,13a-epoxy-1H-indolizino[8,1-cd]carbazole-5(4H)-carbonitrile

rel-Methyl (4R,4aR,6R,6aS,11bS)-4-ethyl-1,2,3,4,12,13-hexahydro-1-oxo-4,6-methano[1]benzothieno[3′,2′:3,4]furo[2,3-i]indolizine-6(6aH)-carboxylate

rel-Methyl (3aR,5S,5aS,10bR,13aR)-3a-ethyl-2,3,3a,11,12,13a-hexahydro-1-oxo-5,13a-epoxy-1H,4H-benzofuro[2,3-h]pyrrolo[3,2,1-ij]quinoline-5(5aH)-carboxylate

Aspidospermidine-1,3-dicarboxylic acid, 3,19-epoxy-8-oxo-, dimethyl ester, (2β,3β,5α,12S)-

Aspidospermidine-3-carboxylic acid, 3,19-epoxy-8-oxo-1-(phenylmethyl)-, methyl ester, (2β,3β,5α,12S)-

rel-Methyl (3aR,5R,5aS,10bS,13aR)-2,3,3a,11,12,13a-hexahydro-1-oxo-5,13a-epoxy-1H,4H-[1]benzothieno[2,3-h]pyrrolo[3,2,1-ij]quinoline-5(5aH)-carboxylate

rel-Methyl (3aR,5S,5aS,10bR,13aR)-2,3,3a,11,12,13a-hexahydro-1-oxo-5,13a-epoxy-1H,4H-benzofuro[2,3-h]pyrrolo[3,2,1-ij]quinoline-5(5aH)-carboxylate

rel-5,6-Dimethyl (3aR,5S,5aS,10bR,13aR)-2,3,3a,11,12,13a-hexahydro-1-oxo-5,13a-epoxy-1H-indolizino[8,1-cd]carbazole-5,6(4H,5aH)-dicarboxylate

20,21-Dinoraspidospermidine-3-carboxylic acid, 3,19-epoxy-8-oxo-1-(phenylmethyl)-, methyl ester, (3α,19α)-(±)-

3,5-Methano-1H,5H-pyrrolo[1′′,2′′:1′,2′]azepino[3′,2′:4,5]furo[3,4-b]indole-5-carboxylic acid, 2,3,5a,6,11,12,13,14-octahydro-6-methyl-14-oxo-, methyl ester, (3R,3aR,5S,5aS,10bR)-rel-

4,6-Methano-6H,12H-indolo[3′,2′:3,4]furo[3,2-i]quinolizine-6-carboxylic acid, 4-ethyl-1,2,3,4,6a,7,13,14-octahydro-7-methyl-1-oxo-, methyl ester, (4R,4aR,6S,6aS,11bR)-rel-

4,6-Methano-6H,12H-indolo[3′,2′:3,4]furo[3,2-i]quinolizine-6-carboxylic acid, 1,2,3,4,6a,7,13,14-octahydro-7-methyl-1-oxo-, methyl ester, (4R,4aR,6S,6aS,11bR)-rel-

rel-Methyl (3R,5aS,7R,7aR,12bS,12cS)-1,2,4,5,5a,6,7a,8-octahydro-8-methyl-2-oxo-7H-7,12c-epoxypyrrolizino[1,7-cd]carbazole-7-carboxylate

5,7-Methano-1H,7H-azepino[1′′,2′′:1′,2′]pyrrolo[3′,2′:4,5]furo[3,4-b]indole-7-carboxylic acid, 2,3,4,5,7a,8,13,14-octahydro-8-methyl-1-oxo-, methyl ester, (5R,5aR,7S,7aS,12bR)-rel-

rel-(3aR,5S,5aS,10bR,13aR)-2,3,3a,4,5,5a,6,11,12,13a-Decahydro-6-methyl-5,13a-epoxy-1H-indolizino[8,1-cd]carbazol-1-one

rel-(3aR,5R,5aS,10bR,13aR)-2,3,3a,4,5,5a,6,11,12,13a-Decahydro-6-methyl-5-phenyl-5,13a-epoxy-1H-indolizino[8,1-cd]carbazol-1-one