Treatment of central nervous system disorders

1. A pharmaceutical composition comprising a compound of formula (IV)

wherein:

n is 2;

R 1 is

each of which is independently unsubstituted or substituted with 1 or 2 substituents independently selected from the group consisting of alkyl, alkenyl, haloalkyl, Cl, Br, F, I, —CN, —NO 2 , —OR b , —SR b , —S(O)R Z , —S(O) 2 R Z , —NR a R b , —C(O)R b , —C(O)OR b , —C(O)NR a R b , —S(O) 2 NR a R b , —C(═NOH)NH 2 , —C(═NH)NH 2 , —R c , —(CR d R e ) m —CN, —(CR d R e ) m —OR b , —(CR d R e ) m —SR b , —(CR d R e ) m —S(O) 2 R Z , —(CR d R e ) m —NR a R b , —(CR d R e ) m —C(O)R b , —(CR d R e ) m —C(O)OR b , —(CR d R e ) m —S(O) 2 NR a R b , —(CR d R e ) m —R e , —N(R a )—(CR d R e ) m —C(O)R b , —N(R a )—(CR d R e ) m —C(O)OR b , —N(R a )—(CR d R e ) m —C(O)NR a R b , —O—(CR d R e ) m —C(O)R b , —O—(CR d R e ) m —C(O)OR b , and —O—(CR d R e ) m —C(O)NR a R b ;

R 2 and R 3 , at each occurrence, are each independently hydrogen or alkyl,

R 4 is —(CR d R e ) m -E-G, wherein E, at each occurrence, is independently O, or N(R e ), and G, at each occurrence, is independently phenyl or pyridinyl, wherein each G is idenpendently unsubstituted or substituted with 1, or 2 substituents independently selected from the group consisting of alkyl, alkenyl, haloalkyl, Cl, Br, F, I, —CN, —NO 2 , —OR d , —S(R d ), —S(O)(alkyl), —S(O)(haloalkyl), —S(O) 2 (alkyl), —S(O) 2 (haloalkyl), —NR d R e , —C(O)(R d ), —C(O)OR d , —C(O)NR d R e , —S(O) 2 NR d R e , R c , —(CR d R e ) m —CN, —(CR d R e ) m —NO 2 , —(CR d R e ) m —OR d , —(CR d R e ) m —S(R d ), —(CR d R e ) m —S(O)(alkyl), —(CR d R e ) m —S(O)(haloalkyl), —(CR d R e ) m —S(O) 2 (alkyl), —(CR d R e ), —S(O) 2 (haloalkyl), —(CR d R e ), —NR d R e , —(CR d R e ) m —C(O)(R d ), —(CR d R e ) m —C(O)OR d , —(CR d R e ), —C(O)NR d R e , —(CR d R e ) m —S(O) 2 NR d R e , and —(CR d R e ) m —R e ;

R a , at each occurrence, is independently hydrogen or alkyl;

R b , at each occurrence, is independently hydrogen, alkyl, haloalkyl, R c or —(CR d R e ) m —R c ;

R Z , at each occurrence, is independently alkyl, haloalkyl, R c or —(CR d R e ) m —R c ;

R c at each occurrence, is independently aryl, heteroaryl, cycloalkyl or heterocycle; wherein each R c is independently unsubstituted or substituted with 1, 2, 3 or 4 substituents independently selected from the group consisting of alkyl, alkenyl, haloalkyl, Cl, Br, F, I, —CN, —NO 2 , —OR d , —S(R d ), —S(O)(alkyl), —S(O)(haloalkyl), —S(O) 2 (alkyl), —S(O) 2 (haloalkyl), —NR d R e , —C(O)(R d ), —C(O)OR d , —C(O)NR d R e , —S(O) 2 NR d R e , —(CR d R e ) m —CN, —(CR d R e ) m —NO 2 , —(CR d R e ) m —OR d , —(CR d R e ) m —S(R d ), —(CR d R e ) m —S(O)(alkyl), —(CR d R e ) m —S(O)(haloalkyl), —(CR d R e ), —S(O) 2 (alkyl), —(CR d R e ), —S(O) 2 (haloalkyl), —(CR d R e ) m —NR d R e , —(CR d R e ) m —C(O)(R d ), —(CR d R e ) m —C(O)OR d , —(CR d R e ) m —C(O)NR d R e , and —(CR d R e ) m —S(O) 2 NR d R e ;

R d and R e , at each occurrence, are independently hydrogen or alkyl; and

m is 1;

and a pharmaceutically acceptable carrier to treat a disorder of the central nervous system wherein an inhibitor of the 11-beta-hydroxysteroid dehydrogenase Type 1 enzyme activity is of therapeutic benefit; wherein the disorder is selected from the group comprising decline in cognitive function in Alzheimer's and associated dementias, cognitive deficits associated with aging and neurodegeneration, dementia, senile dementia, AIDS dementia, major depressive disorder, psychotic depression, treatment resistant depression, anxiety, panic disorder, post traumatic stress disorder, depression in Cushing's syndrome, steroid-induced acute psychosis, cognitive deficits associated with diabetes, attention deficit disorder in general, attention deficit hyperactivity disorder (ADHD), mild cognitive impairment, and schizophrenia.