title: Phenylethanoid glycosides from the roots of Phlomis umbrosa.
abstract: The phytochemical study of the roots of Phlomis umbrosa Turcz. afforded three new phenylethanoid glycosides, 3'''-acetyl-O-betonyoside D (1), 2''', 3'''-di-acetyl-O- betonyoside D (2), and 3''', 4'''-di-acetyl-O-betonyoside D (3), along with five known phenylethanoid glycosides. Their structures were elucidated on the basis of spectroscopic data. The antitumor activity of the isolated compounds was investigated.
authors.affiliation: Chemical Engineering & Pharmaceutical College, Henan University of Science and Technology, Luoyang, China. liudeng20022002@yahoo.com.cn
authors.forename: Pu
authors.initials: P
authors.lastname: Liu
authors.forename: Rui-Xue
authors.initials: RX
authors.lastname: Deng
authors.forename: Hong-Quan
authors.initials: HQ
authors.lastname: Duan
authors.forename: Wei-Ping
authors.initials: WP
authors.lastname: Yin
authors.forename: Tian-Zeng
authors.initials: TZ
authors.lastname: Zhao
mesh_terms: D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D031345:Phlomis / Q000737:chemistry*; D018517:Plant Roots / Q000737:chemistry
chemical_list: D004365:Drugs, Chinese Herbal; D006027:Glycosides