title: Two new glycosides from the florets of Carthamus tinctorius.
abstract: Two new glycoside compounds, named saffloquinoside C (1) and (-)-4-hydroxybenzoic acid-4-O-[6'-O-(2″-methylbutyryl)-β-D-glucopyranoside] (2), were isolated from the florets of Carthamus tinctorius. Their structures were elucidated by detailed spectroscopic means including UV, IR, HR-ESI-MS, 1D and 2D NMR, and CD data. Compound 1 was a rare quinochalcone glycoside with six five-membered dioxaspirocycle.
authors.affiliation: State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
authors.forename: Jian-Shuang
authors.initials: JS
authors.lastname: Jiang
authors.forename: Zhong
authors.initials: Z
authors.lastname: Chen
authors.forename: Ya-Nan
authors.initials: YN
authors.lastname: Yang
authors.forename: Zi-Ming
authors.initials: ZM
authors.lastname: Feng
authors.forename: Pei-Cheng
authors.initials: PC
authors.lastname: Zhang
mesh_terms: D031187:Carthamus tinctorius / Q000737:chemistry*; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D035264:Flowers / Q000737:chemistry; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010226:Parabens / Q000737:chemistry
chemical_list: C582526:4-hydroxybenzoic acid-4-O-(6'-O-(2''-methylbutyryl)-beta-D-glucopyranoside); D004365:Drugs, Chinese Herbal; D006027:Glycosides; D010226:Parabens; C582525:saffloquinoside C; C038193:4-hydroxybenzoic acid