Objective To find new triterpenoids from the stems of Kadsura heteroc/ite. Methods The constituents were isolated and purified by various column chromatographies. Their structures were elucidated mainly on the basis o...Objective To find new triterpenoids from the stems of Kadsura heteroc/ite. Methods The constituents were isolated and purified by various column chromatographies. Their structures were elucidated mainly on the basis of 1D （~H-, 13C-, and DEPT）, 2D （HSQC, HMBC, and ROESY） NMR and mass spectral analysis, also compared with literature data. Results Four triterpenoids were isolated and identified as 3-ethyl manwuweizate （1）, 26-methyl manwuweizate （2）, manwuweizic acid （3）, and anwuweizonic acid （4）. Conclusion Compounds 1 and 2 are new triterpenoids.展开更多
文摘Objective To find new triterpenoids from the stems of Kadsura heteroc/ite. Methods The constituents were isolated and purified by various column chromatographies. Their structures were elucidated mainly on the basis of 1D （~H-, 13C-, and DEPT）, 2D （HSQC, HMBC, and ROESY） NMR and mass spectral analysis, also compared with literature data. Results Four triterpenoids were isolated and identified as 3-ethyl manwuweizate （1）, 26-methyl manwuweizate （2）, manwuweizic acid （3）, and anwuweizonic acid （4）. Conclusion Compounds 1 and 2 are new triterpenoids.
