| abstract |
This invention provides novel compounds and pharmaceutical compositions and methods of using the compounds in the treatment of central nervous system disorders, such as anxiety and depression, the compounds having the formula I:wherein:X is N-R, O, S(O)m; m is 0 to 2; n is 0 to 4; Ar is an aryl group of 6 to 12 carbon atoms optionally substituted with 1 to 3 R3 groups, or a heteroaryl group of 4 to 10 carbon atoms optionally substituted with 1 to 3 R3 groups;R and R2 are independently H, straight chain alkyl of 1 to 6 carbon atoms, branched alkyl of 3 to 6 carbon atoms, cycloalkyl of 3 to 6 carbon atoms, alkoxycarbonyl of 1 to 6 carbon atoms, alkylcarbonyl of 1 to 6 carbon atoms, aminocarbonyl, or alkylaminocarbonyl of 1 to 4 carbon atoms;R1 and R3 are independently H, straight chain alkyl of 1 to 4 carbon atoms, branched alkyl of 3 to 6 carbon atoms, cycloalkyl of 3 to 8 carbon atoms, halo, alkoxy group of 1 to 4 carbon atoms, haloalkyl of 1 to 4 carbon atoms, OH, nitro, amino, sulfonyl, CN, carboxy, alkoxycarbonyl of 1 to 4 carbon atoms, alkylcarbonyl of 1 to 4 carbon atoms, aminocarbonyl, or alkylaminocarbonyl of 1 to 4 carbon atoms;or a pharmaceutically acceptable salt thereof. |