N-sulfamyl-3-halopropionamidines
AssigneeRichter Gedeon Vegyeszeti Gyar Rt.
InventorsPeter Bod, Kalman Harsanyi, Eva gai nee Csongor, Erik Bogsch, Eva Fekecs, Ferenc Trischler, Gyorgy Domany, Istvan Szabadkai, Bela Hegedus
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Abstract
The invention relates to new propionamidine derivatives of formula (I) ##STR1## wherein X is halogen, and to a process for their preparation. According to the invention compounds of the formula (I) are prepared by reacting a 3-halopropionitrile of the formula (III) ##STR2## wherein X is as defined above, with sulfamide of the formula (II) ##STR3## in the presence of a hydrogen halide. Compounds of the formula (I) are useful intermediates in the preparation of famotidine.
Claims1
Propionamidine derivatives of the formula (I) ##STR8## wherein X is halogen.
Dependencies are inferred from the claim text.