NOVEL QUATERNARY AMMONIUM DERIVATIVES, METHOD FOR PREPARING SAME AND PHARMACEUTICAL USE

摘要

The invention concerns compounds of formulae (Ia) or (Ib) wherein M: represents a molecule for use in the treatment or diagnosis of pathologies affecting the cartilage; R1, R2, R3 represent an alkyl group, or R1, R 2, R3 together with the nitrogen atom which bears them form a heterocycle; X represents a C1-C6 alkyl chain wherein one or several -CH2- groups are optionally substituted by a sulphur, an oxygen atom, a -NR, -CO-, -CO-NH-, -CO2-, SO- or SO2- group; n represents 0 or 1; Hal represents a halogen atom, or the formula (Ib); R4 represents an alkyl group; Hal represents a halogen atom. General formula (F1) represents a molecule for use in the treatment or diagnosis of pathologies affecting the cartilage, provided that the nitrogen atom can optionally be included in a saturated or unsaturated nitrogenous heterocyclic system, or involved in a double bond.