申请人:Smith Kline & French Laboratories Limited
公开号:US04569996A1
公开(公告)日:1986-02-11
This invention provides a process for the preparation of pyrimidinone compounds with a group R.sup.2 CH(OH)-- at the 5-position thereof, wherein R.sup.2 is an optionally substituted acid-stable 5- or 6-membered nitrogen-containing heteroaryl group. The pyrimidinone ring is further substituted by a side-chain of a H.sub.1 -antagonist or H.sub.2 -antagonist or a precursor thereof. The compounds are convertible to 5-heteroaryl methyl compounds which are either useful H.sub.1 - or H.sub.2 -antagonists or precursors thereof.
该发明提供了一种制备嘧啶酮化合物的方法,其中该化合物在其5位点上具有R.sup.2 CH(OH)--基团,其中R.sup.2是一种可选的取代酸稳定的5-或6-成员的含氮杂环芳基基团。嘧啶酮环进一步被H.sub.1-拮抗剂或H.sub.2-拮抗剂的侧链或其前体所取代。这些化合物可转化为5-杂环芳基甲基化合物,这些化合物可用作有用的H.sub.1-或H.sub.2-拮抗剂或其前体。