%A Yang Renzhou, Cheng Kunchang, Cun Fulan and Zhu Xiaoqi %T STUDIES ON THE SAPONIN C0MPONENTS OF PLANTS IN YUNNAN IX. IS0LATI0N AND STRUCTURAL ELUCfDATI0N OF SPIROSTANE SAPOGENINS FROM TUPISTRA AURANTIACA(1 ) %0 Journal Article %D 1984 %J Plant Diversity %R %P 1-3 %V 6 %N 02 %U {https://journal.kib.ac.cn/CN/abstract/article_31849.shtml} %8 1984-04-25 %X The roots of Tupislra aurantiaca Wall et .Backer is a folk medicine for treating stomachache in Yunnan. Six spirostane sapogenins (A-F) were obtained from crude sapogenin by column chromafography. Sapogcnin A and D were identificd as 3-epiruscogcnin (1 ) and 3-cpi-neoruscogenin (2 ) respectively. Sapogenin C (tupisgenin) and D (aurantigenin) are new compounds, the struc- tures of them have been suggested as (20s, 22s, 25s) -22, 25-epoxy-5-furosten- lβ, 3α, 26-triol (3 ) and (25s)-spirost-5-en-1β, 3α, 25-triol (4 ) respect- ively, hased on the analysis of IR, MS, 1H NMR and l3C NMR spectra.