title: [Studies on the chemical components of Rhodiola crenulata].
abstract: Six chemical components I-IV were isolated from the roots of Rhodiola crenulata (Crassulaceae). Five (I-V) of them were identified as known salidroside (I), p-tyrosol(II), pyrogallol, gallic acid, and beta-sitosterol, based on comparison of its Rf(TLC), mmp and spectral data with those of authentic samples. The sixth component was found to be a new delta 1-isopentenyl-3-O-beta-D-glucopyranoside and named crenulatin(VI). Its structure was confirmed on the basis of its spectral data (IR, MS, 1H- and 13C-NMR).
authors.affiliation: Department of Chemistry of Naturnal Medicinal Products, College of Pharmacy, West China University of Medical Sciences, Chengdu.
authors.forename: S
authors.initials: S
authors.lastname: Wang
authors.forename: F P
authors.initials: FP
authors.lastname: Wang
mesh_terms: D003374:Coumarins; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D003374:Coumarins; D004365:Drugs, Chinese Herbal; D005960:Glucosides; C076945:crenulatin coumarin