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A new stilbene glucoside gallate from the roots of Polygonum multiflorum
Hyun Ki Kim1, Yeon Hee Choi, Jae Seok Choi
1Korea Research Institute of Chemical Technology, Daejeon, 305-606, Korea.
Abstract:
A new stilbenoid (1) was isolated from the root extract of Polygonum multiflorum together with eight known constituents (2-9). The chemical structure of 1 was established as the 6''-O-monogalloyl ester of (E)-2,3,4',5-beta-tetrahydroxystilbene-2-beta-D-glucopyranoside based on physicochemical and spectroscopic analyses, particularly by NMR spectroscopic data, i.e., COSY, HMQC and HMBC. Compound 1 weakly inhibited acetylcholinesterase in vitro.
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