| 摘要 |
Compound of formula (I): wherein: represents a single or double bond, represents a ring system selected from R6a, R6b, R6c, R6d, X and Y are as defined in the description, R1 represents a hydrogen atom or a group selected from aryl, heteroaryl, cycloalkyl, optionally substituted alkyl, and COR8 wherein R8 is as defined in the description, R2, R3, R4 and R5, which may be the same or different, each represent: a hydrogen atom, a halogen atom, an alkyl group,. an alkoxy group, a hydroxy group, a polyhaloalkyl group, a nitro group, an optionally substituted amino group, a group of formula wherein m represents an integer such that 1<=m<=4, OR R2 with R3, or R3 with R4, or R4 with R5, form, together with the carbon atoms carrying them, an optionally substituted, 5- to 12-membered, mono- or bi-cyclic, aromatic or non-aromatic group optionally containing 1 or 2 hetero atoms selected from O, S and N, R10 represents a hydrogen atom or an alkyl group, Ar represents an aryl, heteroaryl or arylalkyl group, its optical isomers, addition salts thereof with a pharmaceutically acceptable acid, and hydrates and solvates thereof.
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