Pyrimidones having histamine H.sub.2 -antagonist activity
申请人:Smith Kline & French Laboratories Limited
公开号:US04388317A1
公开(公告)日:1983-06-14
The compounds of this invention are 5-[dialkylaminoalkylfuranyl (or thienyl, phenyl or pyridyl)]-4-pyrimidones having histamine H.sub.2 -antagonist activity. A specific compound of this invention is 2-[2-(5-dimethylaminomethyl-2-furanylmethylthio)ethylamino]-5-(5-dimethyla minomethyl-2-furanylmethyl)-4-pyrimidone.
The compounds are alkoxypyridine compounds which are histamine H.sub.2 -antagonists. Two specific compounds of the present invention are N-cyano-N'-methyl-N"-[2-((3-methoxy-2-pyridyl)methylthio)ethyl]guanidine and 1-methylamino-1-[2-(3-methoxy-2-pyridyl)methylthio)ethylamino]-2-nitroethy lene.
Chemical methods and intermediates for preparing substituted
申请人:Smithkline Beckman Corporation
公开号:US04352933A1
公开(公告)日:1982-10-05
A series of chemical reactions starting from the condensation of uracil with an acid stable heterocyclic aldehyde in an acid medium produces biologically active end products which are 2-heterocyclylmethylthioethylamino-5-heterocyclylmethyl-4-pyrimidinones. The new reactions and intermediates of this invention are particularly useful for preparing 2[2-(5-dimethylaminomethyl-2-furylmethylthio)-ethylamino]-5-(6-methyl-3-py ridylmethyl)-4-pyrimidinone and its salts. This compound is a potent H.sub.2 -antagonist with a long duration of activity.
The compounds are alkoxypyridine compounds which are histamine H.sub.2 -antagonists. Two specific compounds of the present invention are N-cyano-N'-methyl-N"-[2-((3-methoxy-2-pyridyl)methylthio)ethyl]guanidine and 1-methylamino-1-[2-((3-methoxy-2-pyridyl)methylthio)ethylamino]-2-nitroeth ylene.