Three new flavonoids, (3R)-4'-methoxy-2',3,7-trihydroxyisoflavanone (11), 7-methoxy-3,3',4',6-tetrahydroxyflavone (18), and 2',7-dihydroxy-4',5'-dimethoxyisoflavone (22), were isolated from the heartwood of Dalbergia odorifera T. Chen. (Leguminosae), together with twenty-two known compounds,
Neoflavonoids are a kind of characteristic components in the Dalbergia genus. Based on the previous researches, 59 neoflavonoids have been obtained from the Dalbergia genus. According to their molecular skeleton, the neoflavonoids can be divided intodalbergiphenols, dalbergiones, dalbergins,
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