ONE-POT PREPARATION OF S-(GUANIDINO-4-YL-METHYL)-ISOTHIOUREA DIHYDROCHORIDE
The invention relates to a new one pot preparation of N-[[4-(amino iminoethyl)thio]methyl]-2-thiozolyl]-guanidine dihydrochloride of formula (IV), by the reaction of 1, 3idiochloroacetone of formula (I) with gunadinothiourea of formula (II) and reacting the compound formed insitu (formula-III) with thiourea.
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Page/Page column 5
(2010/02/10)
A process for the preparation of 3-(2-guanidinothiazol-4-yl-methylthio)propionitrile
The present invention describes a beta-cyanoethylation process of thiol-compounds by acrylonitrile, for the preparation of 3-(2-guanidinothiazol-4-yl-methylthio)pro-pionitrile, in an aqueous-methanolic medium.
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(2008/06/13)
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