Chemical constituents from leaves of Celastrus gemmatus Loes

To study the chemical constituents from the leaves of Celastrus gemmatus Loes., chromatographic methods were used to isolate and purify the chemical constituents, their structures were elucidated by the physiochemical characteristics and spectral data. Nine compounds were obtained and identified as (-)-massoniresinol 3a-O-beta-D-glucopyranoside (1), ambrosidine (2), isolariciresinol 9-O-beta-D-glucopyranoside (3), kaempferol 3-O-beta-D-glucopyranoside (astragalin) (4), kaempferol 3-O-rutinoside (5), kaempferol 3-O-neohesperidoside (6), apigenin 7-O-beta-D-glucuronide (7), apigenin 7-O-beta-D-glucuronide methyl ester (8) and D-sorbitol (9). Compound 1 is a new compound, the others are isolated from this genus for the first time, and this is the first time to report lignan compounds from genus Celastrus.