Derivatives of thienylazolylalkoxyethanamine, procedure for obtaining them and their use in the preparation of medicaments, pharmaceutical composition containing them, intermediates for the preparation of said derivatives and procedure for obtaining intermediates

摘要

Thienylazolylalkoxyethanamines of general formula (I) in which R1 is a hydrogen or halogen atom or an alkyl of 1 to 4 carbon atoms; R2, R3 and R4 represent, independently, an atom of hydrogen or an alkyl of 1 to 4 carbon atoms; and Az represents a nitrogenated N-methyl substituted heterocyclic aromatic five-member ring which contains one to three atoms of nitrogen. The compounds (I) have an analgesic activity in mammals, including human. Procedure for obtaining said compounds, pharmaceutical composition containing them, their use in the preparation of medicaments with analgesic activity and intermediate of general formula (IV) in which R1 and R2 have the same meaning as in the formula (I) and Az represents N-methylpyrazol are also described.