title: [Isolation and identification of chemical constituents of Astragalus root].
abstract: Ten constituents have been isolated from the alcoholic extract of Astragalus membranaceus var. monghlicum root. All of them were identified. Among them astraisoflavanin (3S-(-)-mucronulatol-7-O-D-glucopyranoside) is a new compound. Dimethyl 4,4'-dimethoxy-5,6,5',6'-dimethylenedioxybiphyenyl 1-2, 2'-dicarboxylate is a known synthetic compound, but it was first isolated from natural resource Astragalus root and identified by the authors.
authors.affiliation: National Institute for the Control of Pharmaceutical and Biological Products, Beijing.
authors.forename: Z Q
authors.initials: ZQ
authors.lastname: He
authors.forename: B Q
authors.initials: BQ
authors.lastname: Wang
mesh_terms: D027885:Astragalus propinquus; D004149:Dioxoles / Q000737:chemistry / Q000302:isolation & purification*; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification*; D007529:Isoflavones
chemical_list: D004149:Dioxoles; D004365:Drugs, Chinese Herbal; D005419:Flavonoids; D005960:Glucosides; D007529:Isoflavones; C068777:astraisoflavanin; C041398:7,7'-dimethoxy-(4,4'-bi-1,3-benzodioxole)-5,5'-dicarboxylic acid dimethyl ester