title: Jacaranone and related compounds from the fresh fruits of Ternstroemia japonica and their antioxidative activity.
abstract: Jacaranone and related compounds (1-3) were isolated, along with three triterpenes (4-6), from the fresh fruits of Ternstroemia japonica. The compounds were identified as jacaranone (1), 3-hydroxy-2,3-dihydrojacaranone (2), 3-methoxy-2,3-dihydrojacaranone (3), 3-O-acetyloleanolic acid (4), 3-O-acetylursolic acid (5), and ursolic acid (6). Jacaranone and its derivatives were isolated for the first time from Theaceae. Of the isolated compounds, compound 3 is a new compound. Jacaranone (1) exhibited weak antioxidative effect on 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical.
authors.affiliation: College of Pharmacy, Pusan National University, Busan 609-735, Korea.
authors.forename: Youngmi
authors.initials: Y
authors.lastname: Jo
authors.forename: Jiyoung
authors.initials: J
authors.lastname: Suh
authors.forename: Myoung Hee
authors.initials: MH
authors.lastname: Shin
authors.forename: Jee H
authors.initials: JH
authors.lastname: Jung
authors.forename: Kwang Sik
authors.initials: KS
authors.lastname: Im
mesh_terms: D000975:Antioxidants / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D016227:Benzoquinones; D001713:Biphenyl Compounds / Q000737:chemistry / Q000378:metabolism; D005638:Fruit / Q000737:chemistry; D006834:Hydrazines / Q000737:chemistry / Q000378:metabolism; D007723:Korea; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010851:Picrates; D010946:Plants, Medicinal / Q000737:chemistry*; D011809:Quinones / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D028242:Theaceae / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D000097245:Ursolic Acid
chemical_list: D000975:Antioxidants; D016227:Benzoquinones; D001713:Biphenyl Compounds; D006834:Hydrazines; D010851:Picrates; D011809:Quinones; D014315:Triterpenes; D000097245:Ursolic Acid; C487051:3 beta-O-acetylursolic acid; C052658:oleanolic acid 3-acetate; C013077:jacaranone; C004931:1,1-diphenyl-2-picrylhydrazyl