The absolute configuration of rohitukine, isolated from the stem-bark of Dysoxylum binectariferum, was determined to be 5,7-dihydroxy-2-methyl-8-[4-(3S, 4R-3-hydroxy-1-methyl) -piperidinyl]-4H-1-benzopyran-4-one by X-ray crystallographic analysis on the crystal of 4-bromobenzoyl derivatives of rohitukine. At the same time, the modified Mosher method was proved to be unsuitable for determining the absolute configuration of C-3 position in rohitukine.
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Univ Tokyo, Grad Sch Agr & Life Sci, Dept Appl Biol Chem, Bunkyo Ku, 1-1-1 Yayoi, Tokyo 1138657, JapanUniv Tokyo, Grad Sch Agr & Life Sci, Dept Appl Biol Chem, Bunkyo Ku, 1-1-1 Yayoi, Tokyo 1138657, Japan
Watanabe, H
Yamaguchi, T
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机构:Univ Tokyo, Grad Sch Agr & Life Sci, Dept Appl Biol Chem, Bunkyo Ku, 1-1-1 Yayoi, Tokyo 1138657, Japan
Yamaguchi, T
Furuuchi, T
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机构:Univ Tokyo, Grad Sch Agr & Life Sci, Dept Appl Biol Chem, Bunkyo Ku, 1-1-1 Yayoi, Tokyo 1138657, Japan
Furuuchi, T
Kido, M
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机构:Univ Tokyo, Grad Sch Agr & Life Sci, Dept Appl Biol Chem, Bunkyo Ku, 1-1-1 Yayoi, Tokyo 1138657, Japan
Kido, M
Bando, M
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机构:Univ Tokyo, Grad Sch Agr & Life Sci, Dept Appl Biol Chem, Bunkyo Ku, 1-1-1 Yayoi, Tokyo 1138657, Japan
Bando, M
Kitahara, T
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机构:Univ Tokyo, Grad Sch Agr & Life Sci, Dept Appl Biol Chem, Bunkyo Ku, 1-1-1 Yayoi, Tokyo 1138657, Japan
机构:Sichuan Univ, W China Sch Pharm, Dept Med Nat Prod, Chengdu 610041, Peoples R China
Wu, Haoxing
Xue, Fei
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机构:Sichuan Univ, W China Sch Pharm, Dept Med Nat Prod, Chengdu 610041, Peoples R China
Xue, Fei
Xiao, Xue
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机构:Sichuan Univ, W China Sch Pharm, Dept Med Nat Prod, Chengdu 610041, Peoples R China
Xiao, Xue
Qin, Yong
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Sichuan Univ, W China Sch Pharm, Dept Med Nat Prod, Chengdu 610041, Peoples R ChinaSichuan Univ, W China Sch Pharm, Dept Med Nat Prod, Chengdu 610041, Peoples R China