title: [Studies on the chemical constituents of Flemingia philippinensis].
abstract: Two new prenylated flavonoids, flemiphilippinin C (I) and flemiphilippinin D (II) have been isolated from the root of Flemingia philippinensis (Merr. et Rolfe) Li along with four known compounds. The structure of I and II were elucidated as 7-(.4'-hydroxy-3'-methoxyphenyl)-5-hydroxy-2, 2-dimethyl-10-prenyl-2H,6H-benzo-[1,2-b:5,4-b']dipyran-6-one and 5,7,2',4'-tetrahydroxy-6,8-diprenylisoflavanone, respectively, on the basis of chemical and spectroscopic data. The four known compounds were identified as 5,7,3',4'-tetrahydroxy-6,8-diprenylsilflavone (III), flemichin D (IV), beta-sitosterol (VI) and lupeol (VII), and a mixture of n C22-C30 aliphatic acid (V). Compounds III and IV showed significant cytotoxic activities against P388 cell cultures.
authors.affiliation: Shanghai Institute of Pharmaceutical Industry.
authors.forename: M
authors.initials: M
authors.lastname: Chen
authors.forename: S Q
authors.initials: SQ
authors.lastname: Luo
authors.forename: J H
authors.initials: JH
authors.lastname: Chen
mesh_terms: D000818:Animals; D004365:Drugs, Chinese Herbal / Q000737:chemistry* / Q000494:pharmacology; D007887:Fabaceae / Q000032:analysis*; D044950:Flavanones; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D007941:Leukemia P388 / Q000473:pathology; D010946:Plants, Medicinal; D013729:Terpenes / Q000737:chemistry / Q000302:isolation & purification*; D014407:Tumor Cells, Cultured / Q000187:drug effects
chemical_list: D004365:Drugs, Chinese Herbal; D044950:Flavanones; D005419:Flavonoids; D013729:Terpenes; C070776:flemiphilippinin C; C070777:flemichin D; C070774:flemiphilippinin D