PHARMACEUTICAL COMPOSITIONS CONTAINING AZETIDINE DERIVATIVES, NOVEL AZETIDINE DERIVATIVES AND PREPARATION THEREOF

摘要

The invention concerns pharmaceutical compositions containing as active principle a compound of formula (I) wherein: R1 represents a -N(R4)R5, -N(R4)-CO-R5, -N(R4)-SO2R6 radical or one of its pharmaceutically acceptable salts, the novel derivatives of formula (I), their pharmaceutically acceptable salts and their preparation.