(-)-stepholidine;3,9-dimethoxy-13a-alpha-berbine-10-diol;3,9-dimethoxy-13a-alpha-berbine-2,10-diol;g)quinolizine-2,10-diol,5,8,13,13a-tetrahydro-3,9-dimethoxy-6h-dibenzo((;l-2,10-dihydroxy-3,9-dimethyloxytetrahydropseudoberberine;stepholidine;L-STEPHOLIDINE;L-STEPHOLIDINE, STEPHANIA INTERMEDICA