2,2-Dimethyl-propionic acid (4aS,6S,8aS)-2-[2-(1H-indol-3-yl)-ethyl]-3-oxo-1,2,3,4,4a,5,6,8a-octahydro-isoquinolin-6-yl ester

17β-(trimethylacetoxy)-18,19-didehydroyohimbane

dimethyl (16α)-18,19-didehydro-17-oxoyohimban-1,16-dicarboxylate

开联番木鳖苷

O',O',O',O'-tetraacetylsecologanin