title: Cowabenzophenones A and B, two new tetracyclo[7.3.3.3(3,11).0(3,7)]tetradecane-2,12,14-trione derivatives, from ripe fruits of Garcinia cowa.
abstract: Two new tetracyclo[7.3.3.3(3,11).0(3,7)]tetradecane-2,12,14-trione derivatives, cowabenzophenones A (1) and B (2), were isolated from ripe fruits of Garcinia cowa Roxb. Their structures were determined by spectroscopic methods. The tetracyclo[7.3.3.3(3,11).0(3,7)]tetradecane-2,12,14-trione skeleton from the Garcinia genus is reported for the first time.
authors: Natural Products Research Laboratory, School of Science, Mae Fah Luang University, Tasud, Muang, Chiang Rai 57100, Thailand.
authors: Teerayut
authors: T
authors: Sriyatep
authors: Natural Products Research Laboratory, School of Science, Mae Fah Luang University, Tasud, Muang, Chiang Rai 57100, Thailand.
authors: Wisanu
authors: W
authors: Maneerat
authors: Natural Products Research Laboratory, School of Science, Mae Fah Luang University, Tasud, Muang, Chiang Rai 57100, Thailand.
authors: Tawanun
authors: T
authors: Sripisut
authors: School of Science, University of Phayao, Maeka, Muang, Phayao 56000, Thailand.
authors: Sarot
authors: S
authors: Cheenpracha
authors: Natural Products Research Laboratory, School of Science, Mae Fah Luang University, Tasud, Muang, Chiang Rai 57100, Thailand.
authors: Theeraphan
authors: T
authors: Machan
authors: Department of Chemistry, Faculty of Science, Chiang Mai University, Sutep, Muang, Chiang Mai 50200, Thailand.
authors: Wong
authors: W
authors: Phakhodee
authors: Natural Products Research Laboratory, School of Science, Mae Fah Luang University, Tasud, Muang, Chiang Rai 57100, Thailand. Electronic address: surat@mfu.ac.th.
authors: Surat
authors: S
authors: Laphookhieo
mesh_terms: D005638:Fruit / Q000737:chemistry*; D029760:Garcinia / Q000737:chemistry*; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry*; D011083:Polycyclic Compounds / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D010936:Plant Extracts; D011083:Polycyclic Compounds
keywords: Benzophenone; Clusiaceae; Garcinia cowa Roxb