摘要
从植物长春七根中又分得两种结晶成分(Ⅷ)和(Ⅸ)。经元素分析,紫外、红外、核磁共振光谱及衍生物制备以及衍生物的光谱分析结晶(Ⅷ)为一新双氢吡喃香豆素,命名为长春七甲素。结晶(Ⅸ)为反式对羟基桂皮酸。
Two crystalline substances were isolated from the root of Libanotis buchtorimensis （Fisch） Dc, one of them identified as trans-P-hydroxy-cinnamic acid. It was first found in this plant. Compound （Ⅷ） is a new compound, white needle crystal, melting point 189- 191℃, with the empirical formula CuSuOt, its structure was elucidate by means of UV, IR, 1H-NMR, 13C-NMR and MS, It was named libanotin A.
关键词
长春七
长春七甲素
反式对羟基桂皮酸
Libanotis buchtorimensis
libanotin A
trans-P-hydroxycinnamic
