| 摘要 |
A compound of formula corresponding to either formula (Ia) or (Ib): wherein: M represents a molecule that can be used for the treatment or diagnosis of pathologies caused by attack on the cartilage, R<SUB>1</SUB>, R<SUB>2 </SUB>and R<SUB>3 </SUB>represent alkyl, or R<SUB>1</SUB>, R<SUB>2 </SUB>and R<SUB>3 </SUB>together with the nitrogen atom carrying them, form a heterocycle, X represents a (C<SUB>1</SUB>-C<SUB>6</SUB>)alkylene chain in which one or more -CH<SUB>2</SUB>- groups are optionally replaced by sulphur, oxygen, or -NR-, -CO-, -CO-NH-, -CO<SUB>2</SUB>-, -SO- or -SO<SUB>2</SUB>-, n represents 0 or 1, Hal represents halogen, or, R<SUB>4 </SUB>represents alkyl, Hal represents halogen, represents a molecule that can be used for the treatment or diagnosis of pathologies caused by attack on the cartilage, wherein the nitrogen atom may optionally be included in a saturated or unsaturated nitrogen-containing heterocyclic system, or included in a double bond.
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