Synonyms: Yohimban-16-carboxylic acid, 1-(2-(diethylamino)ethyl)-11,17-dimethoxy-18-((3,4,5-trimethoxybenzoyl)oxy)-, methyl ester, (3beta,16beta,17alpha,18beta,20alpha)-, compd. with 5-oxo-l-proline (1:2);L-Proline, 5-oxo-, compd with (3beta,16beta,17alpha,18beta,20alpha)-methyl 1-(2-(diethylamino)ethyl)-11,17-dimethoxy-18-((3,4,5-trimethoxybenzoyl)oxy)yohimban-16-carboxylate (2:1)