作者最近又从R.cumminsii Stapf.根中分得8种生物碱,其中利血平、利新胺和蛇根碱已有报道,而阿立新(Aricine)、ajmalicine、育亨宾,α-育亨宾和19-表-蛇根碱尚属首次分得。分离方法:按常法提得的弱碱性生物碱部分经硅胶薄层层析,以丙酮-石油醚-四氯化碳-异辛烷(35:30:20:15)展开。将分离的生物碱斑点分别用甲醇提取,提取物再次 The authors have recently isolated eight alkaloids from the roots of R.cumminsii Stapf, of which reserpine, lisinamine, and piperine have been reported, while Aricine, ajmalicine, yohimbe, Vincent and 19-table - snake root base is still the first time share. Separation method: According to the common method of alkaloid alkaloids extracted by thin layer chromatography on silica gel, with acetone - petroleum ether - carbon tetrachloride - isooctane (35: 30: 20: 15) to start. Separate the alkaloids spots were extracted with methanol, extract again