IsoquinolinesSulfur OxidesThalictrumAlkaloidsCyclizationMolecular StructureErgot AlkaloidsIndole AlkaloidsPyrrolizidine AlkaloidsVinca AlkaloidsCinchona AlkaloidsBerberine AlkaloidsAmaryllidaceae AlkaloidsAconitumAporphinesClavicepsCatharanthusBenzylisoquinolinesDelphiniumSolanaceous AlkaloidsBerberinePlant ExtractsNeotyphodiumCoptis