Patent ID: 8258304

Claim:
A compound of formula (I) the N-oxides, the pharmaceutically acceptable acid addition salts and the stereochemically isomeric forms thereof, wherein R 1 is hydrogen, C 1-4 alkyl, halo, or polyhaloC 1-4 alkyl; R 2 is hydrogen, C 1-4 alkyl, halo, or polyhaloC 1-4 alkyl; R 3 is hydrogen or C 1-4 alkyl; R 4 is hydrogen, C 1-4 alkyl, or halo; n is an integer zero or 1; X 1 and X 2 are either both carbon, X 1 is carbon and X 2 is nitrogen, or X 1 is nitrogen and X 2 is carbon; X 3 is carbon, or nitrogen provided that only one of X 1 or X 2 is nitrogen; Y is O or NR 6 wherein R 6 is hydrogen or C 1-4 alkyl; and R 5 is C 1-4 alkyl or C 1-4 alkyl substituted with phenyl.