| abstract |
The present invention provides a tri-substituted pyrimidine compound having an excellent PDE10 inhibitory activity. The present invention relates to a tri-substituted pyrimidine compound represented by the following formula [I 0 ] or a pharmaceutically acceptable salt thereof, a method for preparing the same, and use of said compound for PDE10 inhibitor, and a pharmaceutical composition comprising said compounds as an active ingredient: wherein: either one of X 1 and X 2 is N, and the other of X 1 and X 2 is CH; A is *-CH=CH-, *-C(Alk)=CH-, *-CH 2 -CH 2 - or *-O-CH 2 - (* is a bond with R 1 ); Alk is a lower alkyl group; Ring B is an optionally substituted nitrogen-containing aliphatic heterocyclic group; R 1 is an optionally substituted quinoxalinyl or an optionally substituted quinolyl; Y 0 is mono- or di- substituted amino group, or a pharmaceutically acceptable salt thereof. |