Azolo triazines and pyrimidines

1. A method of treating depression in mammals comprising administering to the mammal a therapeutically effective amount of a compound of Formula (1):

and isomers thereof, stereoisomeric forms thereof, or mixtures of stereoisomeric forms thereof, and pharmaceutically acceptable salt forms thereof, wherein:

Ar is selected from phenyl, pyridyl and 2,3-dihydrobenzofuranyl, each Ar optionally substituted with 1 to 4R 4 groups and each Ar is attached to an unsaturated carbon atom;

R 1 and R 2 are independently selected from H, C 1 -C 4 alkyl, C 3 -C 6 cycloalkyl and C 4 -C 10 cycloalkylalkyl;

R 3 is NR 6a R 7a ;

R 4 is independently selected at each occurrence from: C 1 -C 10 alkyl, C 2 -C 10 alkenyl, C 2 -C 10 alkynyl, C 3 -C 6 cycloalkyl, C 4 -C 12 cycloalkylalkyl, NO 7 , halo, CN, C 1 -C 4 haloalkyl, NR 6 R 7 , NR 8 COR 7 , NR 8 CO 2 R 7 , COR 7 , CONR 6 R 7 , CO(NOR 9 )R 7 , CO 2 R 7 , or S(O) n R 7 , where each such C 1 -C 10 alkyl, C 2 -C 10 alkenyl, C 2 -C 10 alkynyl, C 3 -C 6 cycloalkyl and C 4 -C 12 cycloalkylalkyl are optionally substituted with 1 to 3 substituents independently selected at each occurrence from C 1 -C 4 alkyl, NO 2 , halo, CN, NR 6 R 7 , NR 8 COR 7 , NR 8 CO 2 R 7 , COR 7 OR 7 , CONR 6 OR 7 , CO 2 R 7 , CO(NOR 9 )R 7 , or S(O) n R 7 ;

R 6 , R 1 , R 6a and R 7a are independently selected at each occurrence from:

H,

C 1 -C 10 alkyl, C 3 -C 10 alkenyl, C 3 -C 10 alkynyl, C 1 -C 10 haloalkyl with 1-10 halogens, C 2 -C 8 alkoxyalkyl, C 3 -C 6 cycloalkyl, C 4 -C 12 cycloalkylalkyl, C 5 -C 10 cycloalkenyl, or C 6 -C 14 cycloalkenylalkyl, each optionally substituted with 1 to 3 substituents independently selected at each occurrence from C 1 -C 6 alkyl, C 3 -C 6 cycloalkyl, halo, C 1 -C 4 haloalkyl, cyano, OR 15 , SH, S(O) n R 13 , COR 15 , CO 2 R 15 , OC(O)R 13 , NR 8 COR 15 , N(COR 15 ) 2 , NR 8 CONR 16 R 15 , NR 8 CO 2 R 13 , NR 16 R 15 , CONR 16 R 15 , aryl, heteroaryl or heterocyclyl,

aryl, aryl(C 1 -C 4 alkyl), heteroaryl, heteroaryl(C 1 -C 4 alkyl), heterocyclyl or heterocyclyl(C 1 -C 4 alkyl);

alternatively, NR 6 R 7 and NR 6a R 7a are independently piperidine, pyrrolidine, piperazine, N-methylpiperazine, morpholine or thiomorpholine, each optionally substituted with 1-3 C 1 -C 4 alkyl groups;

R 8 is independently selected at each occurrence from H or C 1 -C 4 alkyl;

R 9 and R 10 are independently selected at each occurrence from H, C 1 -C 4 alkyl, or C 3 -C 6 cycloalkyl;

R 11 is selected from H, C 1 -C 4 alkyl, C 1 -C 4 haloalkyl, or C 3 -C 6 cycloalkyl;

R 12 is C 1 -C 4 alkyl or C 1 -C 4 haloalkyl;

R 13 is selected from C 1 -C 4 alkyl, C 1 -C 4 haloalkyl, C 2 -C 8 alkoxyalkyl, C 3 -C 6 cycloalkyl, C 4 -C 12 cycloalkylalkyl, aryl, aryl(C 1 -C 4 alkyl)-, heteroaryl or heteroaryl(C 1 -C 4 alkyl)-;

R 15 and R 16 are independently selected at each occurrence from H, C 1 -C 6 alkyl, C 3 -C 10 cycloalkyl, C 4 -C 16 cycloalkylalkyl, except that for S(O) n R 15 , R 15 cannot be H;

aryl is phenyl or naphthyl, each optionally substituted with 1 to 5 substituents independently selected at

each occurrence from C 1 -C 6 alkyl, C 3 -C 6 cycloalkyl, halo, C 1 -C 4 haloalkyl, cyano, OR 15 , SH, S(O) n R 15 , COR 15 , CO 2 R 15 , OC(O)R15, NR 8 COR 15 , N(COR 15 ) 2 , NR 8 CONR 16 R 15 , NR 8 CO 2 R 15 , NR 16 R 15 , and CONR 16 R 15 ;

heteroaryl is pyridyl, pyrimidinyl, triazinyl, furanyl, pyranyl, quinolinyl, isoquinolinyl, thienyl, imidazolyl, thiazolyl, indolyl, pyrrolyl, oxazolyl, benzofuranyl, benzothienyl, benzothiazolyl, isoxazolyl, pyrazolyl, 2,3-dihydrobenzothienyl or 2,3-dihydrobenzofuranyl, each being optionally substituted with 1 to 5 substituents independently selected at each occurrence from C 1 -C 6 alkyl, C 3 -C 6 cycloalkyl, halo, C 1 -C 4 haloalkyl, cyano, OR 15 , SH, S(O) n R 15 , —COR 15 , CO 2 R 15 , OC(O)R 15 , NR 8 COR 15 , N(COR 15 ) 2 , NR 8 CONR 16 R 15 , NR 8 CO 2 R 15 , NR 16 R 15 , and CONR 16 R 15 ;

heterocyclyl is saturated or partially saturated heteroaryl, optionally substituted with 1 to 5 substituents independently selected at each occurrence from C 1 -C 6 alkyl, C 3 -C 6 cycloalkyl, halo, C 1 -C 4 haloalkyl, cyano, OR 15 , SH, S(O) n R 15 , COR 15 , CO 2 R 15 , OC(O)R15, NR 8 COR 15 , N(COR 15 ) 2 , NR 8 CONR 16 R 15 , NR 8 CO 2 R 15 , NR 15 R 16 , and CONR 16 R 15 ;

n is independently at each occurrence 0, 1 or 2.

2. The method of claim 1 , wherein the amount administered is 0.002 to 200 mg/kg of body weight daily.

3. The method of claim 1 , wherein the amount administered is 0.01 to 10 mg/kg of body weight in divided doses one to four times a day.

4. The method of claim 1 , wherein the amount administered is 0.01 to 10 mg/kg of body weight in sustained release formulation.