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兴安柴胡(Bupleurum Sibiricum vest)为伞形科柴胡属植物,产于内蒙古、黑龙江等地,亦代替柴胡入药。具有抗炎、抗病毒、保肝、解热镇痛等功用。从其根部乙醚提取部分分得一双藁本内酯(2,2′-6,7,3a′,6′-diligustilide),结构见图。为无色针状结晶,熔点117~118℃,[α]D~(20)=+78.5~0(C=0.01,CHCl_3),经元素分析(C 74.86%,H 7.38%)及质谱(EI)380(M~+),得分子式为C_(24)H_(23)O_4。
Bupleurum Sibiricum vest is an umbrella-shaped Bupleurum, which is produced in Inner Mongolia and Heilongjiang. It also replaces Bupleurum into medicine. With anti-inflammatory, anti-virus, liver, antipyretic analgesic and other functions. A pair of ligustilide (2,2’-6,7,3a ’, 6’-diligustilide) was isolated from the ether extract of its root. The structure is shown in the figure. As a colorless needles, mp 117-118 ° C. [Α] D 20 = + 78.5-0 (C = 0.01, CHCl 3). Elemental analysis (C 74.86%, H 7.38%) and mass spectrum ) 380 (M ~ +), the molecular formula is C_ (24) H_ (23) O_4.