【摘要】 从丹参注射液水沉淀部分分得一结晶,经紫外光谱、红外光谱、核磁共振谱及质谱推断了其结构并经X射线衍射证实了该结构,命名为丹参螺旋缩酮内酯,为一新成分.更多还原

【Abstract】 Crystal Ⅸ, C₁₇H₁₆O₃, is a new compound isolated from the Chinese drug Dan-shen （Salvia miltiorrhiza Bunge）. On the basis of its UV, IR, NMR, MS spectrum data as well as its chemical reactions, it is deduced to structure B, named Dan-shen spiroketallactone, which is comfiremed by X-ray diffraction analysis. The space group of IX is PZ₁Z₁Z₁. There are four molecules in a unit cell with parameters a=25.931, b=7.622, c=6.770, v=1338.06.更多还原