| abstract |
This invention relates to N-aroyl cyclic amine derivatives and their use as orexin antagonists n n n wherein: n Y represents a bond, oxygen, or a group (CH 2 ) n , wherein n represents 1, 2 or 3; n m represents 1, 2, or 3; p represents ) or 1; X is NR, wherein R is H or (C 1-4 )alkyl; Ar 1 is aryl, or a mono or bicyclic heteroaryl group containing up to 3 heteroatoms selected from N, O and S; any of which may be optionally substituted; A 2 represents phenyl or a 5- or 6-membered heterocyclyl group containing up to 3 heteroatoms selected from N, O and S, wherein the phenyl or heterocyclyl group is substituted by R 1 and further optional substituents; or Ar 2 represents an optionally substituted bicyclic aromatic or bicyclic heteroaromatic group containing up to 3 heteroatoms selected from N, O and S; R 1 represents hydrogen, optionally substituted (C 1-4 )alkoxy, halo, cyano, optionally substituted (C 1-6 )alkyl, optionally substituted phenyl, or an optionally substituted 5- or 6-membered heterocyclyl group containing up to 4 heteroatoms selected from N, O and S; when Ar 1 is aryl p is not 1, or a pharmaceutical acceptable salt thereof. |