Substituted aminophosphonate derivatives, process for their preparation and pharmaceutical compositions containing them

摘要

The present invention relates to novel aminophosphonate derivatives substituted in alpha position by phenol groups, of formula (I): <IMAGE> (I) in which: X1, X2, X3, R1, R2, A, B, Z and n are defined in claim 1, as well as their preparations and the pharmaceutical compositions comprising them.