inhibitory activity of the extract of the liverwort, Conocephalumconicum afforded five sesquiterpenelactones, tulipinolide, zaluzanin C, zaluzanin D, 8α-acetoxyzaluzanin C and 8α-acetoxy-zaluzanin D. The latter two compounds are reported for the first time. Tulipinolide is responsible for the characteristic pungency of the female gametophyte of C. conicum . The guaianolides showed inhibitory activity toward
摘要 地草提取物对植物生长抑制活性的研究,Conocephalum conicum 提供了五种倍半萜内酯,郁金香内酯,zaluzanin C,zaluzanin D,8α-乙酰氧基-zaluzanin C 和 8α-乙酰氧基-zaluzanin D。后两种化合物被报道用于第一次。Tulipinolide 是 C. conicum 雌配子体特有的辛辣感的原因。愈创木酚内酯对稻壳中水稻根的萌发和生长显示出抑制活性。C. conicum 的雄配子体没有刺激性,表明缺乏郁金香内酯。
19F NMR of carbofluorinated sesquiterpenic lactones