berberine5,6-dihydro-9,10-dimethoxy-1,3-benzodioxolo[5,6-a]benzo[g]quinolizinium7,8,13,13a-tetradehydro-9,10-dimethoxy-2,3-[methylenebis(oxy)]berbinium9,10-dimethoxy-2,3-(methylenedioxy)-7,8,13,13a-tetradehydroberbiniumBERBERINEBerberinBerberineUmbellatineberberine