| 摘要 |
Compound of formula (I): wherein: R1, R2, R3 and R4, which may be the same or different, each represent a hydrogen atom, a halogen atom or a group selected from alkyl, alkoxy, polyhaloalkyl, hydroxy, cyano, nitro and amino, or R1 and R2, R2 and R3 or R3 with R4, together with the carbon atoms carrying them, form an optionally substituted benzene ring or an optionally substituted heteroaromatic ring, X represents an oxygen atom or a methylene group, A represents a linear or branched (C1-C6) an alkylene chain, represents unsaturated, nitrogen-containing heterocycle and R5 represents an alkyl group, its enantiomers and diastereoisomers, and addition salts thereof with a pharmaceutically acceptable acid or a base. Medicinal products.
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