Thiazole derivatives

C - Chemistry – Metallurgy – 07 – D

Patent

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C07D 417/04 (2006.01) C07D 211/70 (2006.01) C07D 277/22 (2006.01) C07D 277/24 (2006.01) C07D 277/40 (2006.01) C07D 405/04 (2006.01) C07D 417/06 (2006.01) C07D 417/14 (2006.01)

Patent

CA 2215951

Thiazole derivatives represented by general formula (I) or pharmaceutically acceptable salts thereof, wherein Ar1 represents optionally substituted phenyl or thienyl; Y1 and Y2 are different from each other and each represents nitrogen or sulfur; R1 represents hydrogen, C1-5 alkyl, phenyl or amino which may be mono- or di-substituted by C1-5 alkyl; and R2 represents an optionally substituted nitrogen-containing heterocycle. The compounds are a dopamine D4 receptor antagonist which has an antipsychotic effect without causing any extrapyramidal disorder.

L'invention concerne des dérivés de la thiazole représentés par la formule générale (I) ou des sels pharmaceutiquement acceptables de ces dérivés. Dans ladite formule, Ar?1¿ représente phényle ou thiényle éventuellement substitués; Y?1¿ et Y?2¿ diffèrent l'un de l'autre et représentent chacun azote ou soufre; R?1¿ représente hydrogène, C¿1-5? alkyle, phényle ou amino pouvant être monosubstitués ou bisubstitués par C¿1-5? alkyle; et R?2¿ représente un hétérocycle à base d'azote éventuellement substitué. Ce type de composé est un inhibiteur de récepteur D¿4? de la dopamine qui a un effet antipsychotique sans entraîner de syndrome extrapyramidal.

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