Yemuoside YM7, YM11, YM13, and YM14: Four Nortriterpenoid Saponins from Stauntonia chinensis.
Four new nortriterpenoid saponins, named yemuoside YM (7) ( 1), YM (11) ( 2), YM (13) ( 3), and YM (14) ( 4), were isolated from STAUNTONIA CHINENSIS Decne. A new prosaponin, named yemuoside YM (16) ( 5), was isolated from the cleavage of the ester-glycoside linkage of 1. On the basis of chemical and physicochemical evidence, their structures were elucidated.
Wang
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Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing 100050, People's Republic of China.
Yu
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Liang
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Watanabe
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N
Tamai
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Omura
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