title: Flavonoid ketohexosefuranosides from the leaves of Crataegus pinnatifida Bge. var. major N.E.Br.
abstract: Four flavonoid ketohexosefuranosides, pinnatifinoside A, pinnatifinoside B, pinnatifinoside C, and pinnatifinoside D were isolated from the leaves of Crataegus pinnatifida Bge. var. major N.E.Br. Their structures were elucidated by spectroscopic analysis (UV, IR, MS and 1D, 2D NMR) and chemical evidence.
authors.affiliation: Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, People's Republic of, China. pczhang@imm.ac.cn
authors.forename: P C
authors.initials: PC
authors.lastname: Zhang
authors.forename: S X
authors.initials: SX
authors.lastname: Xu
mesh_terms: D002681:China; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D005663:Furans / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D019685:Rosales / Q000737:chemistry*; D013057:Spectrum Analysis
chemical_list: D005419:Flavonoids; D005663:Furans