title: Antioxidant activity of curtisians I-L from the inedible mushroom Paxillus curtisii.
abstract: Four p-terphenyl derivatives named curtisians I-L (1-4) were isolated from the MeOH extract of the fruit bodies of Paxillus curtisii. Their structures were elucidated by 2D NMR, MS, IR and UV spectroscopy and chemical reaction. The absolute configurations of curtisians were determined by GC-MS on a chiral column of the hydrolyzed products with authentic samples. Their antioxidative activities were also estimated by examination of the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical-scavenging effect.
authors.affiliation: Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima, Japan.
authors.forename: Dang Ngoc
authors.initials: DN
authors.lastname: Quang
authors.forename: Toshihiro
authors.initials: T
authors.lastname: Hashimoto
authors.forename: Makiko
authors.initials: M
authors.lastname: Nukada
authors.forename: Isao
authors.initials: I
authors.lastname: Yamamoto
authors.forename: Masami
authors.initials: M
authors.lastname: Tanaka
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Asakawa
mesh_terms: D000363:Agaricales; D000975:Antioxidants / Q000737:chemistry / Q000494:pharmacology*; D001713:Biphenyl Compounds; D005638:Fruit; D008401:Gas Chromatography-Mass Spectrometry; D006801:Humans; D008517:Phytotherapy; D010851:Picrates / Q000737:chemistry; D010936:Plant Extracts / Q000737:chemistry / Q000494:pharmacology*
chemical_list: D000975:Antioxidants; D001713:Biphenyl Compounds; D010851:Picrates; D010936:Plant Extracts; C004931:1,1-diphenyl-2-picrylhydrazyl