title: Triterpene saponins from Clematis chinensis and their potential anti-inflammatory activity.
abstract: Seven new triterpene saponins, clematochinenosides A-G (1-7), together with 17 known saponins (8-24), were isolated from the roots and rhizomes of Clematis chinensis. Their structures were elucidated on the basis of spectroscopic evidence and hydrolysis products. Compounds 1, 3-7, and 20-24 showed inhibitory activities against COX-1 and COX-2 enzymes.
authors.affiliation: State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, No. 38 Xueyuan Road, Beijing, People's Republic of China.
authors.forename: Qiang
authors.initials: Q
authors.lastname: Fu
authors.forename: Ke
authors.initials: K
authors.lastname: Zan
authors.forename: Mingbo
authors.initials: M
authors.lastname: Zhao
authors.forename: Sixiang
authors.initials: S
authors.lastname: Zhou
authors.forename: Shepo
authors.initials: S
authors.lastname: Shi
authors.forename: Yong
authors.initials: Y
authors.lastname: Jiang
authors.forename: Pengfei
authors.initials: P
authors.lastname: Tu
mesh_terms: D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*; D039324:Clematis / Q000737:chemistry*; D051545:Cyclooxygenase 1 / Q000187:drug effects; D051546:Cyclooxygenase 2 / Q000187:drug effects; D052246:Cyclooxygenase 2 Inhibitors / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*; D016861:Cyclooxygenase Inhibitors / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*; D015394:Molecular Structure; D009828:Oleanolic Acid / Q000031:analogs & derivatives / Q000737:chemistry; D018517:Plant Roots / Q000737:chemistry; D027343:Rhizome / Q000737:chemistry; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; D052246:Cyclooxygenase 2 Inhibitors; D016861:Cyclooxygenase Inhibitors; D004365:Drugs, Chinese Herbal; D012503:Saponins; D014315:Triterpenes; D009828:Oleanolic Acid; D051545:Cyclooxygenase 1; D051546:Cyclooxygenase 2; C025763:hederagenin