title: Secondary metabolites from the roots of Phlomis umbrosa.
abstract: The phytochemical study of the roots of Phlomis umbrosa Turcz afforded a new phenylethanoid glycoside, 3-hydroxy-4-methoxy-β-phenylethoxy-O-[2,3-diacetyl-α-l-rhamnopyranosyl-(1 → 3)]-4-O-cis-feruloyl-[β-d-apiofuranosyl-(1 → 6)]-β-d-glucopyranoside (1), and two new 28-noroleanane-derived spirocyclic triterpenoids, phlomishexaol C (2) and phlomishexaol D (3). Their structures were elucidated on the basis of 1D and 2D NMR analyses, in combination with high-resolution MS experiment.
authors.affiliation: Chemical Engineering and Pharmaceutical College, Henan University of Science and Technology, Luoyang, China.
authors.forename: Rui-Xue
authors.initials: RX
authors.lastname: Deng
authors.forename: Wen-Lu
authors.initials: WL
authors.lastname: Duan
authors.forename: Pu
authors.initials: P
authors.lastname: Liu
authors.forename: You-Liang
authors.initials: YL
authors.lastname: Yang
authors.forename: Wei-Ping
authors.initials: WP
authors.lastname: Yin
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*; D027343:Rhizome / Q000737:chemistry; D013237:Stereoisomerism; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: C558104:3-hydroxy-4-methoxy-beta-phenylethoxy-O-(2,3-diacetyl-alpha-L-rhamnopyranosyl-(1-3))-4-O-cis-feruloyl-(beta-D-apiofuranosyl-(1-6))-beta-D-glucopyranoside; D004365:Drugs, Chinese Herbal; D006027:Glycosides; D014315:Triterpenes; C558105:phlomishexaol C; C558106:phlomishexaol D