| Literature DB >> 18791667 |
Salwa F Farag1, Yuka Kimura, Hideyuki Ito, Junko Takayasu, Harukuni Tokuda, Tsutomu Hatano.
Abstract
Two new isoflavone glycosides, tectorigenin 7-O-beta-D-glucopyranoside-4'-O-[beta-D-glucopyranosyl-(1''''-->6''')-beta-D-glucopyranoside] (1) and iristectorigenin B 4'-O-[beta-D-glucopyranosyl-(1'' --> 6'')-beta-D-glucopyranoside] (2), together with 11 known compounds, including six isoflavones, tectorigenin 7-O-beta-D-glucopyranoside-4'-O-beta-D-glucopyranoside (3), tectorigenin 4'-O-[beta-D-glucopyranosyl-(1'''--> 6'')-beta-D-glucopyranoside] (4), tectorigenin 7-O-beta-D-glucopyranoside (5), genistein 7-O-beta-D-glucopyranoside (6), tectorigenin 4'-O-beta-D-glucopyranoside (7), and tectorigenin (8); two phenolic acid glycosides, vanillic acid 4-O-beta-D-glucopyranoside (9) and glucosyringic acid (10); a phenylpropanoid glycoside, E-coniferin (11); an auronol derivative, maesopsin 6-O-beta-D-glucopyranoside (12); and a pyrrole derivative, 4-(2-formyl-5-hydroxymethylpyrrol-1-yl) butyric acid (13), were isolated from fresh Iris spuria (Calizona) rhizomes. The structures of these compounds were established on the basis of spectroscopic and chemical evidence. Inhibitory effects on the activation of Epstein-Barr virus early antigen were examined for compounds 1-8 and 12.Entities:
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Year: 2008 PMID： 18791667 DOI： 10.1007/s11418-008-0291-7
Source DB: PubMed Journal: J Nat Med ISSN： 1340-3443 Impact factor: 2.343