Patent ID: 8138188

Claim:
A compound of formula (I): wherein one of X and Y is N and the other is CH, R is F, Cl, CN, CF 3 or methoxy, with the proviso that when Y is N, R is not F or Cl, R 1 is phenyl, 2-pyridyl, C 3 -C 6 cycloalkyl or CH 2 (C 3 -C 6 cycloalkyl), wherein the ring moiety of said phenyl, 2-pyridyl, C 3 -C 6 cycloalkyl or CH 2 (C 3 -C 6 cycloalkyl) is optionally substituted with one to four substituents independently selected from F, Cl, CN, methyl and methoxy, R 2 is H, F or Cl, with the proviso that when Y is N, R 2 is not F or Cl, Het is a 6-membered ring containing one or 2 N atoms, wherein the ring is either aromatic, or contains 2 double bonds in the ring and a 0 substituent, which ring is optionally substituted with one to four substituents independently selected from F, Cl, OH, CN, methyl, ethyl, NH 2 , NHCH 3 , N(CH 3 ) 2 and methoxy, or alternatively, Het is a 6-membered ring containing one or 2 N atoms fused at the 3,4-positions, relative to the attachment to the pyrrolidine ring, to a 5-membered aromatic ring containing one or two further N atoms, which 5-membered ring is optionally substituted with OH, or a pharmaceutically acceptable salt thereof.