title: Two new ursolic acid saponins from Morina nepalensis var. alba Hand-Mazz.
abstract: A saponin-enriched fraction was prepared from the EtOH extract of the whole plant of Morina nepalensis var. alba Hand-Mazz. It showed α-glucosidase inhibitory activity, from which two new triterpene saponins (1 and 2), along with one known saponin (3), were isolated. The structures of the new saponins were identified by spectroscopic analysis, including extensive 1D and 2D NMR techniques and hydrolysis followed by chromatographic analysis. The three saponins were assayed for α-glucosidase inhibitory activities.
authors: a Ethnic Pharmaceutical Institute, Southwest University for Nationalities , Chengdu , 610041 , Sichuan Province P.R. China.
authors: Zhi-feng
authors: ZF
authors: Zhang
authors: Lu-yang
authors: LY
authors: Lu
authors: Pei
authors: P
authors: Luo
authors: Lin-sen
authors: LS
authors: Qing
authors: Yuan
authors: Y
authors: Liu
mesh_terms: D027922:Caprifoliaceae / Q000737:chemistry*; D065089:Glycoside Hydrolase Inhibitors; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D012503:Saponins / Q000737:chemistry* / Q000494:pharmacology; D014315:Triterpenes / Q000737:chemistry* / Q000494:pharmacology; D000097245:Ursolic Acid
chemical_list: D065089:Glycoside Hydrolase Inhibitors; D012503:Saponins; D014315:Triterpenes; D000097245:Ursolic Acid