Aminoguanidine derivatives and a process for the preparation thereof

Abstract From the Canadian patent

The invention relates to new aminoguanidine derivatives of the general formula (I) wherein, R1, R2 and R3 each represent hydrogen or halogen atom C1-4 alkyl, nitro, trifluoromethyl or C1-4 alkoxy group, R4 and R5 represent a C1-4 alkyl group furthermore, NR4R5 may form a 5 to 7 membered saturated heterocyclic group containing either one or two nitrogen atoms or a, nitrogen and an oxygen atom and being optionally substituted by one or two methyl hydroxymethyl or hydroxyethyl groups, R6 and R7 each represent a hydrogen atom normal or, branched C1-4 alkyl or C2-4 alkenyl group and to their pharmaceutically acceptable acid addition salts as well as to a process for the preparation thereof. - 2 …