methyl (2R,3aR,3a1S,4S,5R,5aS,10bR)-3a-ethyl-4-hydroxy-8-methoxy-6-methyl-2-((triisopropylsilyl)oxy)-2,3,3a,4,5a,6,11,12-octahydro-3a1,5-epoxyindolizino[8,1-cd]carbazole-5(1H)-carboxylate

methyl (2R,3aR,3a1S,4S,5R,5aS,10bR)-4-acetoxy-3a-ethyl-8-methoxy-6-methyl-2-((triisopropylsilyl)oxy)-2,3,3a,4,5a,6,11,12-octahydro-3a1,5-epoxyindolizino[8,1-cd]carbazole-5(1H)-carboxylate

5-[2-(6-Methoxy-1-methyl-1H-indol-3-yl)-ethylamino]-[1,3,4]oxadiazole-2-carboxylic acid methyl ester

methyl 2-(2-((2-(6-methoxy-1-methyl-1H-indol-3-yl)ethyl)carbamoyl)hydrazineyl)-2-oxoacetate

methyl (3aR,3a1S,4S,5R,5aS,10bR)-4-(benzyloxy)-3a-ethyl-8-methoxy-6-methyl-1-oxo-2,3,3a,4,5a,6,11,12-octahydro-3a1,5-epoxyindolizino[8,1-cd]carbazole-5(1H)-carboxylate