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1. (Article ID: 12557)
Ohmori K, Ohrui H, Suzuki K
First synthesis of astilbin, biologically active glycosyl flavonoid isolated from Chinese folk medicine
Tetrahedron Letters 41(29) (2000)
5537-5541
A synthetic route to a biologically active glycosyl flavonoid, astilbin (1), was developed. The tetra-benzyl ether 4, derived from (+)-catechin, was glycosylated with the L-rhamnosyl donor 10 by using Cp2HfCl2–AgClO4, and subsequent oxidation of the C(4) position of the flavan skeleton followed by deprotection gave 1.
synthesis, glycosylation, astilbin
Publication DOI: 10.1016/S0040-4039(00)00826-1Journal NLM ID: 2984819RPublisher: Elsevier
Institutions: Department of Chemistry, Tokyo Institute of Technology, and CREST, Japan Science and Technology (JST), Tokyo, Japan
Methods: 13C NMR, 1H NMR, IR, optical rotation measurement
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