This invention relates to new processes for preparing an imidazole derivative, i.e. cimetidine, by (1) reacting an imidazolylmethylthioethylamine with an amidine or (2) reacting a N-cyano-N'-imidazolylmethylthioethyl formamidine with methylamine or (3) reacting a N-methyl-N'-imidazolylmethylthioethyl formamidine with cyanamide.
Thiazole and isothiazole derivative as blockers of histamine H.sub.2
申请人:Smith Kline & French Laboratories Limited
公开号:US04166856A1
公开(公告)日:1979-09-04
The compounds are novel N-substituted-N'-heterocyclic alkylthioureas, guanidines and 1-nitro-2,2-diaminoethylene compounds which are histamine H.sub.2 -antagonists.
The compounds are novel N-substituted-N'-heterocyclic alkylthioureas, guanidines and 1-nitro-2,2-diaminoethylene compounds which are histamine H.sub.2 -antagonists.
Azolyl alkylthioureas and guanidines alkylaminonitroethylene compounds
申请人:Smith Kline & French Laboratories Limited
公开号:US04440775A1
公开(公告)日:1984-04-03
The compounds are novel N-substituted-N'-heterocyclic alkylthioureas, guanidines and 1-nitro-2,2-diaminoethylene compounds which are histamine H.sub.2 -antagonists.
The compounds are novel N-substituted-N'-heterocyclic alkylthioureas, guanidines and 1-nitro-2,2-diaminoethylene compounds which are histamine H.sub.2 -antagonists.