Studies on chemical constituents from leaves of Uraria lacei

Abstract

Objective: To study the chemical constituents from leaves of Uraria lacei. Method: Chemical constituents were isolated by silica gel column and Sephadex LH-20, and identified by physiochemical and spectral analyses and by comparison with the standard compounds. Result: Eleven compounds were isolated and identified as naringenin-7-O-β-D-glucopyranside (1), (2S)-5, 7-dimethoxy-4′-hydroxyflavan (2), dalbergioidin (3), 5, 7-- dihydroxy-2′-methoxy-3′, 4′-methylenedioxyisoflavanone (4), apigenin (5), 5, 7-dihydroxy-2′, 4′-dimethoxyisoflavanone (6), 5, 7, 2′, 4′-tetrahydroxyisoflavone (7), emodin (8), saliylic acid (9), daucosterol (10), and tetracosane (11). Conclusion: All compounds were isolated from this plant for the first time.