IsoquinolinesSulfur OxidesThalictrumBerberineCyclizationCoptisMolecular StructureBerberine AlkaloidsCorydalisAporphinesAlkaloidsBenzodiazepinonesTetrahydroisoquinolinesPhenalenesLitsea1-(5-Isoquinolinesulfonyl)-2-MethylpiperazineIndenesBenzophenanthridinesOxidoreductases Acting on CH-CH Group DonorsHeterocyclic CompoundsStereoisomerismStructure-Activity Relationship