Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/60675
Title: Four new isoflavonoids from the stem bark of Erythrina variegata
Authors: Li, XL
Wang, NL
Wong, MS 
Chan, ASC
Yao, XS
Issue Date: 2006
Publisher: Pharmaceutical Society of Japan
Source: Chemical and pharmaceutical bulletin, 2006, v. 54, no. 4, p. 570-573 How to cite?
Journal: Chemical and pharmaceutical bulletin 
Abstract: Bioassay-directed fractionation of the stem bark extract of Erythrina variegata L. has resulted in the isolation of three new isoflavones: 5,4'-dihydroxy-8-(3,3-dimethylallyl)-2"-methoxyisopropylfurano[4,5:6,7] isoflavone (1), 5,7,4'-trihydroxy-6-(3,3-dimethylallyloxiranylmethyl)isoflavone (2), 5,4'-dihydroxy-8-(3,3-dimethylallyl)-2"-hydroxymethyl-2"-methylpyrano[5,6:6,7]isoflavone (3) and a new isoflavanone, 5,4'-dihydroxy-2'-methoxy-8-(3,3-dimethylallyl)-2",2"-dimethylpyrano[5,6:6,7]isoflavanone (4) together with seven known compounds, euchrenone b(10) (5), isoerysenegalensein E (6), wighteone (7), laburnetin (8), lupiwighteone (9), erythrodiol (10), and oleanolic acid (11). The structures were determined on the basis of spectroscopic analyses and chemical evidence. The effect of these compounds on the proliferation of rat osteogenic sarcoma (UMR106) is also reported.
URI: http://hdl.handle.net/10397/60675
ISSN: 0009-2363
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