title: A new iridoid compound from Patrinia rupestris (Pall.) Juss.
abstract: Extraction of roots of Patrinia rupestris (Pall.) Juss. gave a new iridoid compound, 1β,3α-diethyloxy-7-hydromethyl-4-(3-methyl-butyryloxymethyl)-cyclopenta-4(4a),7(7a)-diene[c]pyran-6-one (1), together with a known compound, (1α,4aα, 6α,7β,7aα)-[4a,5,6,7,7a-hexahydro-6,7-dihydroxy-1-(3-methyl-1-oxobutoxy) cyclopenta[c]pyran-4,7-diyl]bis(methylene) 3-methyl-butanoic acid ester (2). The structure of 1 was characterised by HRESIMS, IR, UV, 1-D NMR and 2-D NMR methods. Compound 2 was isolated from this genus for the first time.
authors.affiliation: State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China.
authors.forename: Dong-Feng
authors.initials: DF
authors.lastname: Qiu
authors.forename: Xiu-Ping
authors.initials: XP
authors.lastname: Yang
authors.forename: Yang-Jun
authors.initials: YJ
authors.lastname: Xu
authors.forename: Xiao-Qing
authors.initials: XQ
authors.lastname: Liu
authors.forename: Hong-Li
authors.initials: HL
authors.lastname: Liu
authors.forename: Cheng-Shan
authors.initials: CS
authors.lastname: Yuan
mesh_terms: D039823:Iridoids / Q000032:analysis / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D032405:Patrinia / Q000737:chemistry*; D010936:Plant Extracts / Q000032:analysis / Q000302:isolation & purification*; D018517:Plant Roots / Q000737:chemistry*; D021241:Spectrometry, Mass, Electrospray Ionization; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet
chemical_list: D039823:Iridoids; D010936:Plant Extracts