Thiourea compounds, compositions and methods and use
申请人:Smith Kline & French Laboratories Limited
公开号:US04173644A1
公开(公告)日:1979-11-06
The compounds are dithiocarbamates and isothioureas which are histamine H.sub.2 -antagonists. Two compounds of the invention are 2-(5-methyl-4-imidazolylmethylthio)ethyl N-methyldithiocarbamate and S-[2-(5-methyl-4-imidazolyl-methylthio)ethyl]-N-cyano-N'-methylisothiourea .
Heterocyclic-methylthioethyl-dithiocarbamates and isothioureas
申请人:Smith Kline & French Laboratories Limited
公开号:US04120966A1
公开(公告)日:1978-10-17
The compounds are dithiocarbamates and isothioureas which are histamine H.sub.2 -anatagonists. Two compounds of the invention are 2-(5-methyl-4-imidazolylmethylthio)ethyl N-methyldithiocarbamate and S-[2-(5-methyl-4-imidazolyl-methylthio)ethyl]-N-cyano-N'-methylisothiourea .
The compounds are dithiocarbamates and isothioureas which are histamine H.sub.2 -antagonists. Two compounds of the invention are 2-(5-methyl-4-imidazolylmethylthio)ethyl N-methyldithiocarbamate and S-[2-(5-methyl-4-imidazolylmethylthio)ethyl]-N-cyano-N'-methylisothiourea.
The histamine H2-receptor agonist impromidine: synthesis and structure activity considerations
作者:G. J. Durant、C. R. Ganellin、D. W. Hills、P. D. Miles、M. E. Parsons、E. S. Pepper、G. R. White
DOI:10.1021/jm00148a007
日期:1985.10
Impromidine (1) is a potent and selective histamine H2 receptor agonist and its structure comprises a strongly basic guanidine group containing two different imidazole-containing side chains. In this paper we report the synthesis of analogues in which both of the side chains and the guanidine group are modified and tested as agonists or antagonists at histamine H2 receptors on guinea pig atrium. A protonated amidine group linked by a chain of three carbon atoms to a tautomeric imidazole ring appears to be an essential feature for agonist activity and it is suggested that the second imidazole-containing side chain in impromidine mainly contributes toward affinity for histamine H2 receptors.
DURANT, G. J.;GANELLIN, C. R.;HILLS, D. W.;MILES, P. D.;PARSONS, M. E.;PE+, J. MED. CHEM., 1985, 28, N 10, 1414-1422
作者:DURANT, G. J.、GANELLIN, C. R.、HILLS, D. W.、MILES, P. D.、PARSONS, M. E.、PE+