1-Benzyl-6-oxo-2,3,3a,4,5,6-hexahydro-1H-indole-7-carboxylic acid methyl ester
2-Hydroxy-2,3-dimethyl-3-nitro-6-oxocyclohexan-1-carbonsaeuremethylester
(E)-(S)-7-[Benzyloxycarbonyl-(2-hydroxy-ethyl)-amino]-3-oxo-dodec-4-enoic acid methyl ester
methyl (16α)-17-oxoyohimban-16-carboxylate
(+/-)-β-yohimbine