title: [Studies on antibacterial constituents from the roots of Rubia cordifolia L].
abstract: Twelve compounds were isolated from the roots of Rubia cordifolia L.. Nine of them were established by chemical and spectroscopic methods to be alizarin (I),1-hydroxy-2-methyl-9,10-anthraquinone(II),1,3,6-trihydroxy-2-methyl- 9,10-anthra-quinone-3-O-(6'-O-acetyl)-alpha-L-rhamnosyl(1--- -2)-beta-D- glucoside(III),1,3,6-trihydroxy-2-methyl-9,10-anthraqueinone-3-O-a lpha- L-rhamnosyl(1----2)-beta-D-glucoside(IV),1,3,6-trihydrozy-2- methyl-9,10- anthraquinone-3-O-(6'-O-acetyl)-beta-D-glucoside(V),2-carbomethyoxy++ +-3-prenyl- 1,4-naphthohydroquinone di-beta-D-glucoside(VI),rubimallin(VII),beta- sitosterol(VIII) and daucosterol(IX), among them, V is a nwe compound and IX was obtained from this genus for the first time, III, VI and VII showed certain antibacterial activities.
authors.affiliation: Department of National Products, Shenyang College of Pharmacy.
authors.forename: Y F
authors.initials: YF
authors.lastname: Qiao
authors.forename: S X
authors.initials: SX
authors.lastname: Wang
authors.forename: L J
authors.initials: LJ
authors.lastname: Wu
authors.forename: X
authors.initials: X
authors.lastname: Li
authors.forename: T R
authors.initials: TR
authors.lastname: Zhu
mesh_terms: D000880:Anthraquinones / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D004926:Escherichia coli / Q000187:drug effects; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D008826:Microbial Sensitivity Tests; D013211:Staphylococcus aureus / Q000187:drug effects
chemical_list: D000880:Anthraquinones; D004365:Drugs, Chinese Herbal; D005960:Glucosides; C069463:1,3,6-trihydroxy-2-methyl-9,10-anthraquinone-3-O-(6'-acetylglucoside)