EP0505322A1 — Aminoguanidines

USPTO Abstract

Compounds of formula         A-X--Y-NH-B wherein A is derived from optionally substituted benzothiophene, indole, 4-aza-and 7-aza-benzothiophene or-indole, A bearing in position 5 hydrogen, halogen, optionally substituted alkyl, hydroxy, nitro, amino, alkylamino, acylamino, alcoxycarbonyl, sulfamoyl, cyano, trimethylsilyl, carboxy, carbamoyl, phosphate, oxycarbamoyl, heterocyclic radical or ether or ester group, X---Y is -CR₈=N- or CH(R₈)-NH- wherein R₈ is -H or alkyl and attached at position 3 of A, and B is a heterocyclic radical or a residue wherein R₁₀ is H, optionally substituted alkyl, cycloalkyl, aryl, adamantyl, acyl or carbamoyl and X₂ is alkylthio or NR₃R₁₀ wherein R₃ is H or alkyl or R₃ and R₁₀ together with the nitrogen atom to which they are attached form a heterocyclic radical, in free form or in salt form, have pharmacological activity, e.g. for treating gastrointestinal disorders.