Patent ID: 7244734

Claim:
A compound of formula (1): wherein: R 1 is a group chosen from phenyl, 2-indolyl, 3-indolyl, 3-indazolyl, and benzo[b]thiophen-3-yl, wherein the group is optionally substituted with a halogen or C 1 -C 3 alkyl; R 2 and R 3 , which may be the same or different, are chosen from a halogen, hydrogen, OCH 3 , CH 3 and CF 3 ; Q is chosen from optionally substituted, aromatic or heteroaromatic five- or six-membered rings, connected by a carbon-carbon bond; the pyrido[1,2-a]pyrazine moiety optionally contains a double bond, wherein the double bond is between carbon atoms 6 and 7 or between carbon atoms 7 and 8; or at least one stereoisomer or pharmacologically acceptable salt thereof.