PROCESS FOR PRODUCING SUBSTITUTED 3-AMINO-SYDNONIMINES AND PHARMACEUTICAL PREPARATIONS CONTAINING THESE COMPOUNDS AS ACTIVE SUBSTANCE

摘要

Substituted 3-aminosydnone imines of the formula I (I) and their pharmacologically acceptable acid addition salts, in which R1 denotes e.g. hydrogen; R2 denotes e.g. an alkyl radical; at least two of the radicals R3, R4, R5 and R6 denote alkyl radicals and the others denote hydrogen, are prepared by cyclization of a compound of the formula II (II) and, if appropriate, subsequent acylation, and have useful pharmacological properties.