Isoflavones from Millettia nitida var. hirsutissima

To study the chemical constituents of Millettia nitida var. hirsutissima, the constituents were  isolated by chromatographic techniques, and structures were identified by spectroscopic methods.  Eight  isoflavones were isolated and identified, including a new compound, hirsutissimiside F (1), and seven known compounds, formononetin (2), ononin (3), odoratin 7-O-β-D-glucopyranoside (4), lanceolarin (5), afromosin (6), sphaerobioside (7), and hirsutissimiside B (8).  Compounds 3, 4, 5 and 7 were isolated from the genus Millettia for the first time, 2 was obtained from this plant for the first time.