| abstract |
Substituted 3-aminosydnonimines of the formula I <IMAGE> (I) and their pharmacologically acceptable acid addition salts wherein A denotes, for example, -CH2-, R1 denotes hydrogen or the radical -COR7, R2, R3, R4 and R5 denote alkyl with 1 to 4 C atoms and R7 denotes, for example, an aliphatic radical and 1 to 4 C atoms, are prepared by cyclization of a compound of the formula II <IMAGE> (II) and if appropriate subsequent acylation and have useful pharmacological properties. The invention includes pharmaceutical preparations containing the present compounds, and the use thereof for treating patients having cardiovascular ailments. |