ABSTRACT
Objective To study the chemical constituents from Pericarpium Citri Reticulatae (Citrus reticulata). Methods The chemical constituents were isolated and purified by silica gel column, Sephadex LH-20, and ODS column chromatography. The structures were identified by spectral data. Results Nineteen compounds were isolated and identified as 4′,5,6,7-tetramethoxyflavone (1), 3,3′,4′,5,6,7,8-heptmethoxyflavone (2), sinensetin (3), 5-O-demethylnobiletin (4), tangeretin (5), nobiletin (6), apigenin (7), 5-O-desmethyltangeretin (8), 5,7-dihydroxy-3,3′,4′,6-tetramethoxyflavone (9), pachypodol (10), 4′,5,6,7-tetramethoxyflavanone (11), 3′,4′,5,7,8-pentamethoxyflavanone (12), agestricin C (13), scoparone (14), isoscopoletin (15), hesperidin (16), didymin (17), methylhesperidine (18), and naringin (19). Conclusion Compounds 9-15 are obtained from this plant for the first time.
ABSTRACT
Objective To study the chemical constituents from the roots of Millettia speciosa. Methods The chemical constituents were isolated and purified by silica gel, Sephadex LH-20, and ODS column chromatography. The structures were identified by means of spectral data. Results Fifteen compounds were isolated and identified as naringenin (1), liquiritigenin (2), garbanzol (3), 7-hydroxy-6,4′- dimethoxyisoflavone (4), calycosin (5), 2′,5′,7-trihydroxy-4′-methoxyisoflavone (6), 2′-hydroxybiochanin A (7), 6-methoxycalopogonium isoflavone A (8), demethylmedicarpin (9), 4,4′-dihydroxy-2′-methoxychalcone (10), 2′,4′-dihydroxy-4-methoxychalcone (11), rhododendrol (12), secoisolariciresinol (13), bisdihydrosiringenin (14), and polystachyol (15). Conclusion All compounds are obtained from this plant for the first time.