Three new flavanols from Daphne giraldii
Three new flavanols, 5-p-hydroxybenzoxy-7-hydroxyl-8-ethoxycarbonyl-( - )-afzelechin (1), 5-p-hydroxybenzoxy-7-(2, 3, 5-trihydroxybenzoxy)-8-ethoxycarbonyl-( - )-afzelechin (2), and 5-p-hydroxybenzoxy-7-(2, 3, 5-trihydroxybenzoxy)-8-methoxycarbonyl-( - )-afzelechin (3), were isolated from Daphne giraldii Nitsche and their structures were elucidated by spectroscopic methods, especially by 2D-NMR and MS analyses.
Keywords: Daphne giraldii; Thymelaeaceae; afzelechin; flavanol
Document Type: Research Article
Affiliations: 1: Department of Phytochemistry, School of Pharmacy, Second Military Medical University, Shanghai, China 2: Department of Research and Development, Shanghai Center of Research and Development of New Drugs, Shanghai, China
Publication date: 01 June 2008
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