title: Anthraquinone and naphthoquinone derivatives from the roots of Coptosapelta flavescens.
abstract: Investigation of the acetone and methanol extracts of the roots of Coptosapelta flavescens using various chromatographic techniques led to the isolation of four anthraquinones (1 and 3-5) and one naphthoquinone (2). 1,4-Dimethoxy-2-methylanthraquinone (1) and 2-amino-3-methoxycarbonyl-1,4-naphthoquinone (2) are reported as natural compounds for the first time. This is the first report on the phytochemistry and biological activity of compounds from C. flavescens.
authors.forename: Wipapan
authors.initials: W
authors.lastname: Kongyen
authors.forename: Vatcharin
authors.initials: V
authors.lastname: Rukachaisirikul
authors.forename: Souwalak
authors.initials: S
authors.lastname: Phongpaichit
authors.forename: Nongyao
authors.initials: N
authors.lastname: Sawangjaroen
authors.forename: Phruksa
authors.initials: P
authors.lastname: Songsing
authors.forename: Hattaya
authors.initials: H
authors.lastname: Madardam
mesh_terms: D000880:Anthraquinones / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D008826:Microbial Sensitivity Tests; D009285:Naphthoquinones / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D018517:Plant Roots / Q000737:chemistry; D019666:Rubiaceae / Q000737:chemistry*
chemical_list: D000880:Anthraquinones; D009285:Naphthoquinones