Journal of Medicinal Chemistry p. 1026 - 1031 (1980)
Update date:2022-07-29
Topics:
Lipinski, C. A.
Stam, J. G.
Pereira, J. N.
Ackerman, N. R.
Hess, H.-J.
Series of 5-phenoxy-2(1H)-pyrimidinones, 5-phenoxy-4(3H)-pyrimidinones, and related compounds were prepared in a follow-up of a lead prepared as a potential cyclic nucleotide regulating agent.Compounds were evaluated for bronchodilator activity in histamine-challenged guinea pigs and for antiulcer activity in a cold-restraint, stressed rat ulcer model.Bronchodilator activity comparable to, or greater than, that of theophylline was found in both the 2(1H)- and 4(3H)-pyrimidinone series and was most prominent in analogues containing either an electron-withdrawing or -donating substituent in the para position of the phenoxy ring.Significant antiulcer activity was observed only in the 2(1H)-pyrimidinone series among three closely related analogues.One of these, 5-(m-methylphenoxy)-2(1H)-pyrimidinone (3), exhibited more potent antiulcer effects than the clinically useful antiulcer agent carbenoxolone, without demonstrating bronchodilator activity.
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