Synonyms: Methyl (3beta,19alpha,20alpha)-16,17-didehydro-10,11-dimethoxy-19-methyloxayohimban-16-carboxylate, oxalate (1:1);NSC 72120;methyl (3beta,19alpha,20alpha)-10,11-dimethoxy-19-methyl-16,17-didehydro-18-oxayohimban-16-carboxylate ethanedioate (1:1);methyl 10,11-dimethoxy-19-methyl-16,17-didehydro-18-oxayohimban-16-carboxylate ethanedioate (1:1)