【摘要】 目的:研究合蕊五味子(Schisandra propinqua var. propinqua)地上部分化学成分。方法:利用正反相硅胶、高效液相色谱等现代分离技术进行分离,利用IR,UV,MS和NMR等现代波谱技术手段鉴定了它们的结构。结果:分离得到两个分别具有3,4-seco-cycloartane和3,4:9,10-secocycloartane型骨架的新三萜内酯:propinic lactones A(1)和B(2);同时分离得到了一个典型的cycloartane骨架三萜类化合物。结论:这两个新化合物在生源合成途径上具有重要意义,它们可能是连接cycloartane骨架三萜和schisandra降三萜骨架的重要中间体。更多还原

【Abstract】 AIM:To study the chemical constituents of the aerial parts of Schisandra propinqua var.propinqua.METHOD:Silica gel,C18 reversed phase silica gel and HPLC were used.The structures were elucidated by extensive spectroscopic methods.RESULT:Two new triterpenoids,propinic lactone A(1) with 3,4-seco-cycloartane skeleton,and propinic lactone B(2) possessing 3,4:9,10-seco-cycloartane skeleton,together with a known typical cycloartane triterpenoid,schizandronic acid(3),have been isolated and identified.CONCLUSION:These two new triterpenoids serve as two important bridge intermediates from cycloartane triterpenoids to Schisandra nortriterpenoids biogenetically.更多还原