Substituted 3-aminosydnone imines, a process for their...

Details Substituted 3-aminosydnone imines, a process for their... Substituted 3-aminosydnone imines, a process for their...

C - Chemistry, Metallurgy

07

D

167/208, 260/303

C07D 413/04 (2006.01) A61K 31/395 (2006.01) C07D 271/04 (2006.01) C07D 417/04 (2006.01)

Patent

CA 1335989

Substituted 3-aminosydnone imines of the formula I Image (I) and their pharmacologically acceptable acid addition salts, in which A denotes, for example, -CH2-, R1 denotes hydrogen or the radical -COR5, R2, R3 denote alkyl having 1 to 4 C atoms, R5 denotes, for example, an aliphatic radical having 1 to 4 C atoms, are prepared by cyclization of a compound of the formula II Image (II) and if desired subsequent acylation, and possess useful pharmaco- logical properties.

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