C31,-secodammarane-type triterpenoid saponins from the male flowers of Alnus pendula |
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| Authors: | Takayuki Suga Tadashi Aoki Yasuko Kawada Shinji Ohta Emi Ohta |
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| Affiliation: | Department of Chemistry, Faculty of Science, Hiroshima University, Higashisenda-machi, Naka-ku, Hiroshima 730, Japan |
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| Abstract: | Six C31-secodammarane-type triterpenoid saponins, in addition to alnustic acid, were isolated from the male flowers of Alnus pendula. Two of these saponins were new and were shown to be the 12-O-(2′-O-acetyl)-β-d-xylopyranoside and the 12-O-(2′-O-acetyl)-β-d-glucopyranoside of alnustic acid, respectively, on the basis of their physico-chemical data. |
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| Keywords: | Betulaceae male flowers alnustic acid alnustic acid saponins. |
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