Ge Xin, Lin De-Chang, Zhang Wei-Dong, Zhang Xin-Rong
Department of Natural Medicinal Chemistry, Second Military Medical University, Shanghai, China.
J Asian Nat Prod Res. 2009 Sep;11(9):838-44. doi: 10.1080/10286020903156273.
Two new triterpenoid saponins, incarvillosides A (1) and B (2), and two new monoterpenoid glycosides, incarvillosides C (3) and D (4), were isolated from the high-polarity fraction of the whole plant of Incarvillea delavayi. By means of spectroscopic data and chemical degradation, the structures were established as (3beta,21beta)-3,19,21,23-tetrahydroxyurs-12-en-28-oic acid 28-O-beta-d-glucopyranoside (1), (2beta,3beta,19alpha)-2,3,19,23-tetrahydroxyolean-12-en-28-oic acid 28-O-beta-d-glucopyranoside (2), (2S,6R)-2,6-dimethyl-1,8-octanediol 1-O-beta-d-glucopyranoside (3), and (2S,6R)-2,6-dimethyl-1,8-octanediol 8-O-beta-d-glucopyranoside (4).
从滇西角蒿全株植物的高极性部位分离得到两个新的三萜皂苷，角蒿皂苷A（1）和B（2），以及两个新的单萜糖苷，角蒿皂苷C（3）和D（4）。通过光谱数据和化学降解方法，确定其结构分别为(3β,21β)-3,19,21,23-四羟基乌苏-12-烯-28-酸28-O-β-D-吡喃葡萄糖苷（1）、(2β,3β,19α)-2,3,19,23-四羟基齐墩果-12-烯-28-酸28-O-β-D-吡喃葡萄糖苷（2）、(2S,6R)-2,6-二甲基-1,8-辛二醇1-O-β-D-吡喃葡萄糖苷（3）和(2S,6R)-2,6-二甲基-1,8-辛二醇8-O-β-D-吡喃葡萄糖苷（4）。
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