title: A new isorhamnetin glycoside and other phenolic compounds from Callianthemum taipaicum.
abstract: A new flavonol glycoside together with five known phenolic compounds were isolated from the whole herb of Callianthemum taipaicum. The compounds were identified as isorhamnetin-3-O-α-L-arabinoside-7-O-β-D-glucoside (1), isorhamnetin-3-O-β-D-glucoside (2), dibutyl phthalate (3), (+)-1-hydroxylpinoresinol-4'-β-D-glucoside (4), pinoresinol-4'-O-β-D-glucoside (5) and 2-phenylethyl-β-primeveroside (6). Compound 1 was identified as a new flavonol glycoside. The compound 6 was isolated for the first time as natural product. All compounds were isolated for the first time from the Callianthemum genus. Furthermore, the 2D-NMR data of the four known compounds 2-5 are given for the first time in this paper. All the structures were identified on the basis of detailed spectral analysis. The compounds 1 and 4 exhibited certain antifungal activity.
authors.affiliation: College of Forestry, Northwest A & F University, Yangling 712100, China. dmwli@163.com
authors.forename: Dong-Mei
authors.initials: DM
authors.lastname: Wang
authors.forename: Wen-Jun
authors.initials: WJ
authors.lastname: Pu
authors.forename: Yong-Hong
authors.initials: YH
authors.lastname: Wang
authors.forename: Yu-Juan
authors.initials: YJ
authors.lastname: Zhang
authors.forename: Shan-Shan
authors.initials: SS
authors.lastname: Wang
mesh_terms: D000935:Antifungal Agents / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D006027:Glycosides / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology; D008826:Microbial Sensitivity Tests; D019906:Nuclear Magnetic Resonance, Biomolecular; D011794:Quercetin / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D029626:Ranunculaceae / Q000737:chemistry*
chemical_list: D000935:Antifungal Agents; D006027:Glycosides; C047368:3-methylquercetin; D011794:Quercetin