花锚中两种新酮化学成分的鉴定

Identification of Chemical Constituents of Two Kinds New Xanthone of Halenia Elliptica

提取并鉴定高原植物椭圆叶花锚的全草中2种针状结晶化合物;采用元素分析(EA)、核磁共振波谱(NMR)、质谱(MS)、红外光谱(IR)、紫外光谱(UV)、熔点测定等分析方法,对其化学结构进行表征;产物分别为1,3-二羟基-4,5,8-三甲氧基酮和1-羟基-2,3,4,8-四甲氧基酮.首次从藏药椭圆叶花锚的全草中分离出上述化合物.

Two needle- shaped crystal chemicals were identificated from a plateau plant Halenia eUiptica D. Don. Some analysis methods, such as EA, MS, NMR, FTIR and UV spectrometry , as well as melting point analysis, were used for the characterization of them. results showed that they were 1,3 - dihydroxy - 4, 5, 8 - trimethoxyxanthone and 1 - hydroxy - 2,3,4, 8 - tetramethoxyxanthone. It is the first time for high content Xanthone to be obtained from Halenia eUiptica D. Don of plateau plant.