2,7-substituted octahydro-pyrrolo¬1,2-a|pyrazine derivatives

C - Chemistry – Metallurgy – 07 – D

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C07D 487/04 (2006.01) A61K 31/495 (2006.01)

Patent

CA 2240594

This invention relates to compounds of formula (I), wherein R1 is phenyl, naphthyl, benzoxazolonyl, indolyl, indolonyl, benzimidazolyl, quinolyl, furyl, benzofuryl, thienyl, benzothienyl, oxazolyl, benzoxazolyl; R2 is H or (C1- C6)alkyl; R3 is phenyl, pyridinyl, pyrimidinyl, pyrazinyl, or pyridazinyl; X is O, S, SO, SO2, NR4, C=O, CH(OH), CHR4, (a), (b), (c), or (d); m is 0, 1 or 2; n is 0, 1 or 2. The compounds of this invention are ligands for dopamine receptor subtypes, especially the dopamine D4 receptor, and are therefore useful in the treatment of disorders of the dopamine system.

Cette invention se rapporte à des composés représentés par la formule (I) dans laquelle R¿1? est phényle, naphthyle, benzoxazolonyle, indolyle, indolonyle, benzimidazolyle, quinolyle, furyle, benzofuryle, thiényle, benzothiényle, oxazolyle, benzoxazolyle, R¿2? est H ou alkyle (C¿1?-C¿6?), R¿3? est phényle, pyridinyle, pyrimidinyle, pyrazinyle ou pyridazinyle, X est O, S, SO, SO¿2?, NR¿4?, C=O, CH(OH), CHR¿4? ou un des composés représentés par les formules (a), (b), (c) ou (d), m est égal à 0,1 ou 2 et n est égal à 0,1 ou 2. Les composés de cette invention sont des ligands des sous-types de récepteurs de la dopamine, en particulier du récepteur de la dopamine D¿4?, et ils s'avèrent par conséquent utiles s'agissant du traitement des troubles du système dopaminergique.

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