Two terpene alkaloid of meadowsweet is elaborated to be true alkaloids based on its serine biogenesis.The possibility of biomimetically synthesizing their analogues from iridoids is discussed.

• 根据绣线菊二萜生物碱生源上来源于丝氨酸的特点,论述该类生物碱应归于真生物碱,同时提出用单萜环烯醚苷仿生合成其类似物的可能性。