| abstract |
The invention relates to 1-(4-(pyridin-2-yl)benzyl)imidazolidine-2,4-dione derivative having the general Formula (I) wherein R 1 is H, (C 1-6 )alkyl (optionally substituted with oxo, (C 1-3 )alkyloxy, (C 1-3 )-alkyl- oxycarbonyl, halogen or CN), (C 3-6 )cycloalkyl or (C 3-6 )cycloalkyl(C 1-3 )alkyl, each cycloalkyl ring optionally comprising a heteroatom selected from O and S; R 2 and R 3 are independently H or (C 1-3 )alkyl; or R 2 and R 3 form together with the carbon atom to which they are bound a (C 3-5 )cycloalkyl group; R 4 is H or 1 to 3 F substituents; R 5 is H or 1 to 4 F substituents; R 6 and R 7 are independently H or F; X represents R 8 , OR 8 , NR 8 R 9 , Formulae (Ia) or (Ib); R 8 is (C 5-7 )cycloalkyl optionally comprising a heteroatom selected from O, S, SO and SO 2 ; R 9 is H or (C 1-4 )alkyl; R 10 represents 1-3 substituents independently selected from H, (C 1-3 )alkyl, halogen, oxo, CN and CF 3 ; Y is CF 2 , O, S, SO or SO 2 ; or a pharmaceutically acceptable salt thereof, to pharmaceutical compositions comprising the same, as well as to the use of said 1-(4-(pyridin-2-yl)benzyl)imidazolidine-2,4-dione derivatives in the treatment of pain such as for example peri-operative pain, chronic pain, neuropathic pain, cancer pain and pain and spasticity associated with multiple sclerosis. |