title: Ring substituted 3-phenyl-1-(2-pyrazinyl)-2-propen-1-ones as potential photosynthesis-inhibiting, antifungal and antimycobacterial agents.
abstract: Four series of ring substituted (E)-3-phenyl-1-(2-pyrazinyl)-2-propen-1-ones were prepared by means of modified Claisen-Schmidt condensation of acetylpyrazines with aromatic aldehydes. The structures were confirmed by elemental analysis, IR, 1H NMR and 13C NMR spectra. The compounds were tested for specific biological properties and some derivatives exhibited photosynthesis-inhibiting, antifungal and antimycobacterial properties. The most pronounced effects were observed with compounds substituted with phenolic groups. Ortho-hydroxyl substituted derivatives were more potent than the corresponding para-hydroxyl substituted analogues.
authors.affiliation: Department of Pharmaceutical Chemistry and Drug Control, Faculty of Pharmacy, Charles University in Prague, Hradec Králové, Czech Republic. opletalo@faf.cuni.cz
authors.forename: Veronika
authors.initials: V
authors.lastname: Opletalová
authors.forename: Jirí
authors.initials: J
authors.lastname: Hartl
authors.forename: Asmita
authors.initials: A
authors.lastname: Patel
authors.forename: Karel
authors.initials: K
authors.lastname: Palát
authors.forename: Vladimir
authors.initials: V
authors.lastname: Buchta
mesh_terms: D000935:Antifungal Agents / Q000138:chemical synthesis* / Q000494:pharmacology*; D000995:Antitubercular Agents / Q000138:chemical synthesis* / Q000494:pharmacology*; D005658:Fungi / Q000187:drug effects; D006540:Herbicides / Q000138:chemical synthesis / Q000494:pharmacology; D006571:Heterocyclic Compounds / Q000138:chemical synthesis* / Q000494:pharmacology*; D009682:Magnetic Resonance Spectroscopy; D008826:Microbial Sensitivity Tests; D008968:Molecular Conformation; D015394:Molecular Structure; D009169:Mycobacterium tuberculosis / Q000187:drug effects; D010788:Photosynthesis / Q000187:drug effects*; D013329:Structure-Activity Relationship
chemical_list: D000935:Antifungal Agents; D000995:Antitubercular Agents; D006540:Herbicides; D006571:Heterocyclic Compounds