Anthrone and oxanthrone C-glycosides from Picramnia latifolia collected in Peru.
Basic Information
ID: ALA1146494
Journal: J Nat Prod
Title: Anthrone and oxanthrone C-glycosides from Picramnia latifolia collected in Peru.
Authors: Diaz F, Chai HB, Mi Q, Su BN, Vigo JS, Graham JG, Cabieses F, Farnsworth NR, Cordell GA, Pezzuto JM, Swanson SM, Kinghorn AD.
Abstract: Cytotoxicity-based, bioassay-guided fractionation of the chloroform-soluble extracts of both the roots and leaves of Picramnia latifolia led to the isolation of two new anthrone C-glycosides, picramniosides G (1) and H (2), two new oxanthrone C-glycosides, mayosides D (3) and E (4), and a new benzanthrone natural product, 6,8-dihydroxy-10-methyl-7H-benz[de]anthracen-7-one (5), together with 10 known compounds, 6,8-dihydroxy-4-methyl-7H-benz[de]anthracen-7-one (6), nataloe-emodin (7), chrysophanein, chrysophanol, 1,5-dihydroxy-7-methoxy-3-methylanthraquinone, pulmatin, 7-hydroxycoumarin, 7-hydroxy-6-methoxycoumarin, beta-sitosterol, and beta-sitosterol glucoside. The structures of 1-5 were established by spectroscopic methods, including 1D and 2D NMR, HRMS, and CD data interpretation. The cytotoxic activity of all isolates was evaluated in a small panel of human cancer cell lines. Compound 7 exhibited significant in vitro cytotoxic activity in the tested cell lines, but no significant activity was observed with an in vivo hollow fiber model at doses of 6.25, 12.5, 25, and 50 mg/kg/injection.
CiteXplore: 15043409
DOI: 10.1021/np030479j
Patent ID: ┄