Six new steroidal saponins (1-6) were isolated from the roots of A. acutifolius L., together with a known spirostanol glycoside (7). Their structures were elucidated mainly by extensive spectroscopic analysis (1D and 2D NMR, FABMS and HRESIMS). Compounds 4-7 demonstrated antifungal activity against the human pathogenic yeasts C. albicans, C. glabrata and C. tropicalis with MICs values between 12.5 and 100 mu g/ml. (C) 2007 Elsevier Ltd. All rights reserved.
机构:Chinese Academy of Sciences,State Key Laboratory of Phytochemistry and Plant Resources in West China and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany
Ruo-Song Zhang
Yang-Yang Liu
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Qiong Jin
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机构:Chinese Academy of Sciences,State Key Laboratory of Phytochemistry and Plant Resources in West China and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany
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Shenyang Pharmaceut Univ, Sch Tradit Chinese Mat Med, Shenyang 110016, Peoples R ChinaShenyang Pharmaceut Univ, Sch Tradit Chinese Mat Med, Shenyang 110016, Peoples R China
Su, Lan
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Shenyang Pharmaceut Univ, Sch Tradit Chinese Mat Med, Shenyang 110016, Peoples R ChinaShenyang Pharmaceut Univ, Sch Tradit Chinese Mat Med, Shenyang 110016, Peoples R China
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