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Four new 2-(2-phenylethyl)chromone derivatives from withered wood of Aquilaria sinensis
Toru Yagura1, Michiho Ito, Fumiyuki Kiuchi
1Department of Pharmacognosy, Graduate School of Pharmaceutical Sciences, Kyoto University, Japan.
Chemical & Pharmaceutical Bulletin
|May 9, 2003
Abstract:
Four new chromone derivatives, 5-hydroxy-6-methoxy-2-(2-phenylethyl)chromone (1), 6-hydroxy-2-(2-hydroxy-2-phenylethyl)chromone (2), 8-chloro-2-(2-phenylethyl)-5,6,7-trihydroxy-5,6,7,8-tetrahydrochromone (3), 6,7-dihydroxy-2-(2-phenylethyl)-5,6,7,8-tetrahydrochromone (4) were isolated from the MeOH extract of withered wood of Aquilaria sinensis, together with seven known constituents of agarwood.