作者:Sachie Okazaki、Kaoru Kinoshita、Satoru Ito、Kiyotaka Koyama、Hiroshi Yuasa、Kunio Takahashi
DOI:10.1016/j.phytochem.2010.10.004
日期:2011.1
Triterpene saponins, pachanosides C1, E1, F1 and G1 (1-4), and bridgesides A1, C1, C2, D1, D2, E1 and E2 (5-11) were isolated from Echinopsis macrogona. Compounds 1-4 were saponins with pachanane type triterpene saponins, while the others (5-11) were oleanane type triterpene saponins. While the aglycones of 2-4 and 8-11 were hitherto unknown, the structure of pachanol C was revised in this paper. Their structures were elucidated on the basis of chemical and physicochemical evidence. (C) 2010 Elsevier Ltd. All rights reserved.