title: Peyssonenynes a and B, novel enediyne oxylipins with DNA methyl transferase inhibitory activity from the red marine alga peyssonneliacaulifera.
abstract: Two novel omega3 fatty acids, obtained as monoacyl glycerol derivatives, were isolated as DNA methyl transferase inhibitors following bioassay-guided fractionation of the Fijian red marine alga Peyssonnelia caulifera. Both active metabolites, peyssonenynes A (1) and B (2), possess an unusual enediyne motif, whereas an inactive co-metabolite, peyssopyrone (3), contains an unusual gamma-pyrone functionality. The molecular structures of all three compounds were determined by NMR spectroscopy in combination with UV, IR, and MS data analysis. The instability of the enediyne monoacyl glycerol derivatives prevented their complete stereochemical assignments.
authors.affiliation: College of Pharmacy, Oregon State University, Corvallis, Oregon 97331, USA.
authors.forename: Kerry L
authors.initials: KL
authors.lastname: McPhail
authors.forename: Dennis
authors.initials: D
authors.lastname: France
authors.forename: Susan
authors.initials: S
authors.lastname: Cornell-Kennon
authors.forename: William H
authors.initials: WH
authors.lastname: Gerwick
mesh_terms: D015254:DNA Modification Methylases / Q000037:antagonists & inhibitors*; D053281:Enediynes; D004791:Enzyme Inhibitors / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D005231:Fatty Acids, Unsaturated / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D005367:Fiji; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D011753:Pyrones / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D000461:Rhodophyta / Q000737:chemistry*
chemical_list: D053281:Enediynes; D004791:Enzyme Inhibitors; D005231:Fatty Acids, Unsaturated; D011753:Pyrones; C488238:peyssonenyne A; C488239:peyssonenyne B; C488240:peyssopyrone; D015254:DNA Modification Methylases