Pyrimidinone compounds of the formula:
are described, wherein R1 is selected from various optionally substituted phenyl and heterocyclic groups; X is methylene or in certain instances oxygen; Y is sulphur or methylene; Z is hydrogen or C1-6alkyl; A is an optionally interrupted alkylene chain and R2 is an N-substituted pyridone.
Processes for their preparation are described, as is their use as histamine H2-antagonists. Novel intermediates are described.
式中的
嘧啶酮化合物:
其中 R1 选自各种任选取代的
苯基和杂环基团;X 为亚
甲基或在某些情况下为
氧;Y 为
硫或亚
甲基;Z 为
氢或 C1-6 烷基;A 为任选间断的亚烷基链,R2 为 N-取代的
吡啶酮。
介绍了它们的制备过程,以及它们作为
组胺 H2-
拮抗剂的用途。还描述了新型
中间体。