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芫花(Daphne genkwa Sieb. et Zucc.)为瑞香科植物。近年来,湖北、山东、河南诸省民间使用其花的乙醇粗提物,配成乙醇针剂,进行临床中期妊娠引产效果很好。我们从该植物花的乙醇粗提物中经硅胶柱层析,硅胶G低压柱层析,除分得前文已报道过的新的二萜原酸酯芫花酯甲、酯乙外,尚分得另一新的二萜原酸酯芫花酯丙(1)(yuanhuafine),得率0.011%,对孕猴(300μg/只)中期妊娠引产有效。酯丙的分子式为C_(29)H_(32)O_(10)[α]_D~(15.5)+39.10~0,
Daphne genkwa Sieb. et Zucc. is a plant of the family of Sativaceae. In recent years, people in Hubei, Shandong, and Henan provinces have used their crude ethanol extracts and formulated ethanol injections to perform induction labor in clinical mid-term pregnancy. From the crude ethanol extract of the plant flower, we used silica gel column chromatography and silica gel G column chromatography to obtain the new diterpene orthoesters glycosides and esters B reported previously. Another new diguanoridine ester (1) (yuanhuafine), with a yield of 0.011%, is effective for labor induction in mid-pregnancy in pregnant monkeys (300 μg/body). The molecular formula of ester C is C 29 H 32 O 10 O 1 15.5