期刊
CHEMICAL & PHARMACEUTICAL BULLETIN
卷 58, 期 3, 页码 438-441出版社
PHARMACEUTICAL SOC JAPAN
DOI: 10.1248/cpb.58.438
关键词
blumenol C glucoside; byzantionoside B; megastigmane glucoside
The absolute stereochemistry of blumenol C glucoside and byzantionoside B was revised here as (6R,9S)- and (6R,9R)-hydroxymegastigman-4-en-3-one 9-O-beta-D-glucopyranosides, respectively, by modified Mosher's method. The empirical rules of C-13-NMR chemical shift to determine the absolute stereochemistry of C-9 of 9-hydroxymegastigniane 9-O-beta-u-glucopyranoside-were also discussed.
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