title: New hepatoprotective coumarinolignoids from Mallotus apelta.
abstract: Three new coumarinolignoids, malloapelins A-C (1-3, resp.), together with three known coumarinolignoids, cleomiscosin A (4), cleomiscosin B (5), and 5'-demethylaquillochin (6), were isolated from the roots of Mallotus apelta MUELL.-ARG. Compounds 1-6 are three pairs of regioisomeric coumarinolignoids. Their structures were elucidated on the basis of spectral evidence. Compounds 3 showed promising hepatoprotective activity against D-galactosamine-induced toxicity in WB-F344 rat hepatic epithelial stem-like cells.
authors.affiliation: Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine (Ministry of Education), Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, P.R. China.
authors.forename: Jian-Fu
authors.initials: JF
authors.lastname: Xu
authors.forename: Zi-Ming
authors.initials: ZM
authors.lastname: Feng
authors.forename: Jian
authors.initials: J
authors.lastname: Liu
authors.forename: Pei-Cheng
authors.initials: PC
authors.lastname: Zhang
mesh_terms: D000818:Animals; D002470:Cell Survival / Q000187:drug effects; D002478:Cells, Cultured; D056486:Chemical and Drug Induced Liver Injury / Q000517:prevention & control*; D003374:Coumarins / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D005688:Galactosamine; D022781:Hepatocytes / Q000187:drug effects; D036461:Mallotus Plant / Q000737:chemistry*; D019906:Nuclear Magnetic Resonance, Biomolecular; D018517:Plant Roots / Q000737:chemistry; D051381:Rats
chemical_list: D003374:Coumarins; D005688:Galactosamine