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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-Odesmethyltangeretin(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.
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) , 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.