METHOD AND DERIVATIVE OF CYANO GUANIDINE
A novel cyanoguanidine derivative represented by the following general formula (I): wherein X stands for a hydrogen atom, a chlorine atom or a bromine atom, and R stands for a lower alkyl group, is an effective precursor for the synthesis of N-cyano-N'-methyl-N''-(2-(5-methyl-4-imidaz...
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Format: | Patent |
Sprache: | eng ; kor |
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Zusammenfassung: | A novel cyanoguanidine derivative represented by the following general formula (I): wherein X stands for a hydrogen atom, a chlorine atom or a bromine atom, and R stands for a lower alkyl group, is an effective precursor for the synthesis of N-cyano-N'-methyl-N''-(2-(5-methyl-4-imidazolylmethylthio)ethyl)-guanidin e (Cimetidine) which has an action of controlling secretion of gastric acid and is valuable as an agent for the remedy of a gastric ulcer. This cyanoguanidine derivative is prepared by reacting a methylvinylketone derivative with a mercaptoguanidine derivative or by reacting an amidinoketone derivative with a halogenating agent. |
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