Patent ID: 8637674

Claim:
A compound of formula (I): wherein X represents —CH— or nitrogen; Y represents —CH 2 —, —CH 2 CH 2 —, —CH═CH—, —CH 2 —O— or —O—CH 2 —; R 1 represents a hydrogen atom, an acetyl group, a tri(C 1 -C 4 ) alkylsilanyl group, a diarylboranyl group or a (t-butoxy)carbamyl group; R 2 represents a hydrogen atom or a C 1 -C 4 alkyl group; and R 3 , R 4 and R 5 each independently represent a hydrogen atom, a hydroxyl group, a halogen atom, a (C 6 -C 10 ) aryl group, a halo(C 1 -C 3 ) alkyl group, a (C 1 -C 6 ) alkoxy group, a tri(C 1 -C 4 ) alkylsilaneoxy group or a benzodioxolyl group; or alternatively R 3 and R 4 or R 4 and R 5 taken together represent —CH 2 —CH═CH—, —CH═CH—CH═CH— or —CH═CH—CH═CH—CH 2 —; or a pharmaceutically acceptable salt thereof, with the proviso that 3-benzyl-1-(pyridin-2-yl)-1H-pyrazol-5-ol is excluded.