Journal
CHEMICAL & PHARMACEUTICAL BULLETIN
Volume 51, Issue 2, Pages 203-206Publisher
PHARMACEUTICAL SOC JAPAN
DOI: 10.1248/cpb.51.203
Keywords
7-methoxyflavanone; sulfation; Cunninghamella elegans; NMR; ESI-MS
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Metabolism of 7-O-methylnaringenin (sakuranetin) by Cunninghamella elegans NRRL 1392 yielded naringenin and naringenin-4'-sulfate. C elegans also converted 5,3',4'-trihydroxy-7-methoxyflavanone into eriodictyol-4'-sulfate. Furthermore, incubation of 5,4'-dihydroxy-7,3'-dimethoxyflavanone with the same fungus gave homoeriodictyol (5,7,4'-trihydroxy-3'-methoxyflavanone) and homoeriodicytol-7-sulfate. The structures of the new metabolites were established by spectral analysis including 2D-NMR, HR-ESI-FT-MS beside hydrolysis by acid.
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