Aspartyl protease inhibitors

1. A compound having the structural formula I

or a stereoisomer, tautomer, or pharmaceutically acceptable salt thereof, wherein

R 1 is selected from the group consisting of H, alkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl, heterocycloalkylalkyl, arylcycloalkylalkyl, heteroarylcycloalkylalkyl, arylheterocycloalkylalkyl, heteroarylheterocycloalkylalkyl, cycloalkyl, arylcycloalkyl, heteroarylcycloalkyl, heterocycloalkyl, arylheterocycloalkyl, heteroarylheterocycloalkyl, alkenyl, arylalkenyl, cycloalkenyl, arylcycloalkenyl, heteroarylcycloalkenyl, heterocycloalkenyl, arylheterocycloalkenyl, heteroarylheterocycloalkenyl, alkynyl, arylalkynyl, aryl, cycloalkylaryl, heterocycloalkylaryl, cycloalkenylaryl, heterocycloalkenylaryl, heteroaryl, cycloalkylheteroaryl, heterocycloalkylheteroaryl, cycloalkenylheteroaryl, heterocycloalkenylheteroaryl, —OR 15 , —CN, —C(═NR 11 )R 8 , —C(O)R 8 , —C(O)OR 9 , —S(O)R 10 , —S(O) 2 R 10 , —C(O)N(R 11 )(R 12 ), —S(O)N(R 11 )(R 12 ), —S(O) 2 N(R 11 )(R 12 ), —NO 2 , —N═C(R 8 ) 2 and —N(R 11 )(R 12 ), provided that R 1 and R 5 are not both selected from —NO 2 , —N═C(R 8 ) 2 and —N(R 11 )(R 12 );

R 3 , R 4 and R 6 are independently selected from the group consisting of H, alkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl, heterocycloalkylalkyl, arylcycloalkylalkyl, heteroarylcycloalkylalkyl, arylheterocycloalkylalkyl, heteroarylheterocycloalkylalkyl, cycloalkyl, arylcycloalkyl, heteroarylcycloalkyl, heterocycloalkyl, arylheterocycloalkyl, heteroarylheterocycloalkyl, alkenyl, arylalkenyl, cycloalkenyl, arylcycloalkenyl, heteroarylcycloalkenyl, heterocycloalkenyl, arylheterocycloalkenyl, heteroarylheterocycloalkenyl, alkynyl, arylalkynyl, aryl, cycloalkylaryl, heterocycloalkylaryl, cycloalkenylaryl, heterocycloalkenylaryl, heteroaryl, cycloalkylheteroaryl, heterocycloalkylheteroaryl, cycloalkenylheteroaryl, heterocycloalkenylheteroaryl, halo, —CH 2 —O—Si(R 9 )(R 10 )(R 19 ), —SH, —CN, —OR 9 , —C(O)R 8 , —C(O)OR 9 , —C(O)N(R 11 )(R 12 ), —SR 19 , —S(O)N(R 11 )(R 12 ), —S(O) 2 N(R 11 )(R 12 ), —N(R 11 )(R 12 ), —N(R 11 )C(O)R 8 , —N(R 11 )S(O)R 10 , —N(R 11 )S(O) 2 R 10 , —N(R 11 )C(O)N(R 12 )(R 13 ), —N(R 11 )C(O)OR 9 and —C(═NOH)R 8 ;

R 7 is selected from the group consisting of alkylene, arylalkylene, heteroarylalkylene, cycloalkylalkylene, heterocycloalkylalkylene, arylcycloalkylalkylene, heteroarytcycloalkylalkylene, aryiheterocycloalkylalkylene, heteroarylheterocycloalkylalkylene, cycloalkylene, arylcycloalkylene, heteroarylcycloalkylene, heterocycloalkylene, arylheterocycloalkylene, heteroarylheterocycloalkylene, alkenylene, arylalkenylene, cycloalkenylene, arylcycloalkenylene, heteroarylcycloalkenylene, heterocycloalkenylene, arylheterocycloalkenylene, heteroarylheterocycloalkenylene, alkynylene, arylalkynylene, arylene, cycloalkylarylene, heterocycloalkylarylene, cycloalkenylarylene, heterocycloalkenylarylene, heteroarytene, cycloalkylheteroarylene, heterocycloalkylheteroarylene, cycloalkenylheteroarylene and heterocycloalkenylheteroarylene, wherein said R 7 group is unsubstituted or substituted by replacement of 1 to 3 hydrogen atoms (where available) with 1 to 3 R 21 groups;

R 8 is independently selected from the group consisting of H, alkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl, heterocycloalkylalkyl, arylcycloalkylalkyl, heteroarylcycloalkylalkyl, aryiheterocycloalkylalkyl, heteroarylheterocycloalkylalkyl, cycloalkyl, arylcycloalkyl, heteroarylcycloalkyl, heterocycloalkyl, arylheterocycloalkyl, heteroarylheterocycloalkyl, alkenyl, arylalkenyl, cycloalkenyl, arylcycloalkenyl, heteroarylcycloalkenyl, heterocycloalkenyl, arylheterocycloalkenyl, heteroarylheterocycloalkenyl, alkynyl, arylalkynyl, aryl, cycloalkylaryl, heterocycloalkylaryl, cycloalkenylaryl, heterocycloalkenylaryl, heteroaryl, cycloalkylheteroaryl, heterocycloalkylheteroaryl, cycloalkenylheteroaryl, heterocycloalkenylheteroaryl, —OR 15 , —N(R 15 )(R 16 ), —N(R 15 )C(O)R 16 , —N(R 15 )S(O)R 16 , —N(R 15 )S(O) 2 R 16 , —N(R 15 )S(O) 2 N(R 16 )(R 17 ), —N(R 15 )S(O)N(R 16 )(R 17 )—N(R 15 )C(O)N(R 16 )(R 17 ) and —N(R 15 )C(O)OR 16 ;

R 9 is independently selected from the group consisting of H, alkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl, heterocycloalkylalkyl, arylcycloalkylalkyl, heteroarylcycloalkylalkyl, arylheterocycloalkylalkyl, heteroarylheterocycloalkylalkyl, cycloalkyl, arylcycloalkyl, heteroarylcycloalkyl, heterocycloalkyl, a rylheterocycloalkyl, heteroaryiheterocycloalkyl, alkenyl, arylalkenyl, cycloalkenyl, arylcycloalkenyl, heteroarylcycloalkenyl, heterocycloalkenyl, arylheterocycloalkenyl, heteroarylheterocycloalkenyl, alkynyl, arylalkynyl, aryl, cycloalkylaryl, heterocycloalkylaryl, cycloalkenylaryl, heterocycloalkenylaryl, heteroaryl, cycloalkylheteroaryl, heterocycloalkylheteroaryl, cycloalkenylheteroaryl, and heterocycloalkenylheteroaryl;

R 10 is independently selected from the group consisting of H, alkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl, heterocycloalkylalkyl, arylcycloalkylalkyl, heteroarylcycloalkylalkyl, arylheterocycloalkylalkyl, heteroarylheterocycloalkylalkyl, cycloalkyl, arylcycloalkyl, heteroarylcycloalkyl, heterocycloalkyl, arylheterocycioalkyl, heteroaryiheterocycloalkyl, alkenyl, arylalkenyl, cycloalkenyl, arylcycloalkenyl, heteroarylcycloalkenyl, heterocycloalkenyl, arylheterocycloalkenyl, heteroarylheterocycloalkenyl, alkynyl, arylalkynyl, aryl, cycloalkylaryl, heterocycloalkylaryl, cycloalkenylaryl, heterocycloalkenylaryl, heteroaryl, cycloalkylheteroaryl, heterocycloalkylheteroaryl, cycloalkenylheteroaryl, heterocycloalkenylheteroaryl and —N(R 15 )(R 16 );

R 11 , R 12 and R 13 are independently selected from the group consisting of H, alkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl, heterocycloalkylalkyl, arylcycloalkylalkyl, heteroarylcycloalkylalkyl, arylheterocycloalkylalkyl, heteroarylheterocycloalkylalkyl, cycloalkyl, arylcycloalkyl, heteroarylcycloalkyl, heterocycloalkyl, arylheterocycloalkyl, heteroarylheterocycloalkyl, alkenyl, arylalkenyl, cycloalkenyl, arylcycloalkenyl, heteroarylcycloalkenyl, heterocycloalkenyl, arylheterocycloalkenyl, heteroarylheterocycloalkenyl, alkynyl, arylalkynyl, aryl, cycloalkylaryl, heterocycloalkylaryl, cycloalkenylaryl, heterocycloalkenylaryl, heteroaryl, cycloalkylheteroaryl, heterocycloalkylheteroaryl, cycloalkenylheteroaryl, heterocycloalkenylheteroaryl, —C(O)R 8 , —C(O)OR 9 , —S(O)R 10 , —S(O) 2 R 10 , —C(O)N(R 15 )(R 16 ), —S(O)N(R 15 )(R 16 ), —S(O) 2 N(R 15 )(R 16 ) and —CN;

R 15 , R 16 and R 17 are independently selected from the group consisting of H, alkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl, heterocycloalkylalkyl, arylcycloalkylalkyl, heteroarylcycloalkylalkyl, arylhetemcycloalkylalkyl, heteroarylheterocycloalkylalkyl, cycloalkyl, arylcycloalkyl, heteroarylcycloalkyl, heterocycloalkyl, arylheterocycloalkyl, heteroarylheterocycloalkyl, alkenyl, arylalkenyl, cycloalkenyl, arylcycloalkenyl, heteroarylcycloalkenyl, heterocycloalkenyl, aryiheterocycloalkenyl, heteroarylheterocycloalkenyl, alkynyl, arylalkynyl, aryl, cycloalkylaryl, heterocycloalkylaryl, cycloalkenylaryl, heterocycloalkenylaryl, heteroaryl, cycloalkylheteroaryl, heterocycloalkylheteroaryl, cycloalkenylheteroaryl, heterocycloalkenylheteroaryl, R 18 -alkyl, R 18 -arylalkyl, R 18 -heteroarylalkyl, R 18 -cycloalkylalkyl, R 18 -heterocycloalkylalkyl, R 18 -arylcycloalkylalkyl, R 18 -heteroarylcycloalkylalkyl, R 18 -arylheterocycloalkylalkyl, R 18 -heteroarylheterocycloalkylalkyl, R 18 -cycloalkyl, R 18 -arylcycloalkyl, R 18 -heteroarylcycloalkyl, R 18 -heterocycloalkyl, R 18 -arylheterocycloalkyl, R 18 -heteroarylheterocycloalkyl, R 18 -alkenyl, R 18 -arylalkenyl, R 18 -cycloalkenyl, R 18 -arylcycloalkenyl, R 18 -heteroarylcycloalkenyl, R 18 -heterocycloalkenyl, R 18 -arylheterocycloalkenyl, R 18 -heteroaryiheterocycloalkenyl, R 18 -alkynyl, R 18 -arylalkynyl, R 18 -aryl, R 18 -cycloalkylaryl, R 18 -heterocycloalkylaryl, R 18 -cycloalkenylaryl, R 18 -heterocycloalkenylaryl, R 18 -heteroaryl, R 18 -cycloalkylheteroaryl, R 18 -heterocycloalkylheteroaryl, R 18 -cycloalkenylheteroaryl, and R 18 -heterocycloalkenylheteroaryl; or

R 18 is 1-5 substituents independently selected from the group consisting of alkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl, heterocycloalkylalkyl, arylcycloalkylalkyl, heteroarylcycloalkylalkyl, arylheterocycloalkylalkyl, heteroarylheterocycloalkylalkyl, cycloalkyl, arylcycloalkyl, heteroarylcycloalkyl, heterocycloalkyl, arylheterocycloalkyl, heteroarylheterocycloalkyl, alkenyl, arylalkenyl, cycloalkenyl, arylcycloalkenyl, heteroarylcycloalkenyl, heterocycloalkenyl, aryiheterocycloalkenyl, heteroaryiheterocycloalkenyl, alkynyl, arylalkynyl, aryl, cycloalkylaryl, heterocycloalkylaryl, cycloalkenylaryl, heterocycloalkenylaryl, heteroaryl, cycloalkylheteroaryl, heterocycloalkylheteroaryl, cycloalkenyiheteroaryl, heterocycloalkenylheteroaryl, —NO 2 , halo, HO-alkoxyalkyl, —CF 3 , —CN, alkyl-CN, —C(O)R 19 , —C(O)OH, —C(O)OR 19 , —C(O)NHR 20 , —C(O)NH 2 , —C(O)NH 2 —C(O)N(alkyl) 2 , —C(O)N(alkyl)(aryl), —C(O)N(alkyl)(heteroaryl), —SR 19 , —S(O) 2 R 20 , —S(O)NH 2 , —S(O)NH(alkyl), —S(O)N(alkyl)(alkyl), —S(O)NH(aryl), —S(O) 2 NH 2 , —S(O) 2 NHR 19 , —S(O) 2 NH(heterocycloalkyl), —S(O) 2 N(alkyl) 2 , —S(O) 2 N(alkyl)(aryl), —OCF 3 , —OH, —R 20 , —O-heterocycloalkyl, —O-cycloalkylalkyl, —O-heterocycloalkylalkyl, —NH 2 , —NHR 20 , —N(alkyl) 2 , —N(arylalkyl) 2 , —N(arylalkyl)-(heteroarylalkyl), —NHC(O)R 20 , —NHC(O)NH 2 , —NHC(O)NH(alkyl), —NHC(O)N(alkyl)(alkyl), —N(alkyl)C(O)NH(alkyl), —N(alkyl)C(O)N(alkyl)(alkyl), —NHS(O) 2 R 20 , —NHS(O) 2 NH(alkyl), —NHS(O) 2 N(alkyl)(alkyl), —N(alkyl)S(O) 2 NH(alkyl) and —N(alkyl)S(O) 2 N(alkyl)(alkyl);

or two R 18 moieties on adjacent carbons can be linked together to form

R 19 is alkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl, heterocycloalkylalkyl, arylcycloalkylalkyl, heteroarylcycloalkylalkyl, aryl heterocycloalkylalkyl, heteroarylheterocycloalkylalkyl, cycloalkyl, arylcycloalkyl, heteroarylcycloalkyl, heterocycloalkyl, arylheterocycloalkyl, heteroarylheterocycloalkyl, alkenyl, arylalkenyl, cycloalkenyl, arylcycloalkenyl, heteroarytcycloalkenyl, heterocycloalkenyl, arylheterocycloalkenyl, heteroarylheterocycloalkenyl, alkynyl, arylalkynyl, aryl, cycloalkylaryl, heterocycloalkylaryl, cycloalkenylaryl, heterocycloalkenylaryl, heteroaryl, cycloalkylheteroaryl, heterocycloalkylheteroaryl, cycloalkenylheteroaryl or heterocycloalkenyiheteroaryl;

R 20 is halo substituted aryl, alkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl, heterocycloalkylalkyl, arylcycloalkylalkyl, heteroarylcycloalkylalkyl, arylheterocycloalkylalkyl, heteroarylheterocycloalkylalkyl, cycloalkyl, arylcycloalkyl, heteroarylcycloalkyl, heterocycloalkyl, arylheterocycloalkyl, heteroarylheterocycloalkyl, alkenyl, arylalkenyl, cycloalkenyl, arylcycloalkenyl, heteroarylcycloalkenyl, heterocycloalkenyl, arylheterocycloalkenyl, heteroarylheterocycloalkenyl, alkynyl, arylalkynyl, aryl, cycloalkylalkyl, heterocycloalkylaryt, cycloalkenylaryl, heterocycloalkenylaryt, heteroaryl, cycloalkylheteroaryl, heterocycioalkylheteroaryl, cycloalkenylheteroaryl or heterocycloalkenylheteroaryl,

and wherein each of the alkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl, heterocycloalkylalkyl, arylcycloalkylalkyl, heteroarylcycloalkylalkyl, arylheterocycloalkylalkyl, heteroarylheterocycloalkylalkyl, cycloalkyl, arylcycloalkyl, heteroarylcycloalkyl, heterocycloalkyl, arylheterocycloalkyl, heteroarylheterocycloalkyl, alkenyl, arylalkenyl, cycloalkenyl, arylcycloalkenyl, heteroarylcycloalkenyl, heterocycloalkenyl, arylheterocycloalkenyl, heteroarylheterocycloalkenyl, alkynyl, arylalkynyl, aryl, cycloalkylaryl, heterocycloalkylaryl, cycloalkenylaryl, heterocycloalkenylaryl, heteroaryl, cycloalkylheteroaryl, heterocycloalkylheteroaryl, cycloalkenylheteroaryl or heterocycloalkenylheteroaryl groups in R 3 , R 4 , R 6 , R 8 , R 9 , R 10 , R 11 , R 12 , and R 13 are independently unsubstituted or substituted by 1 to 5 R 21 groups independently selected from the group consisting

alkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl, heterocycloalkylalkyl, arylcycloalkylalkyl, heteroarylcycloalkylalkyl, arylheterocycloalkylalkyl, heteroaryiheterocycloalkylalkyl, cycloalkyl, arylcycloalkyl, heteroarylcycloalkyl, heterocycloalkyl, arylheterocycloalkyl, heteroarylheterocycloalkyl, alkenyl, arylalkenyl, cycloalkenyl, arylcycloalkenyl, heteroarylcycloalkenyl, heterocycloalkenyl, arylheterocycloalkenyl, heteroarylheterocycloalkenyl, alkynyl, arylalkynyl, aryl, cycloalkylaryl, heterocycloalkylaryl, cycloalkenylaryl, heterocycloalkenylaryl, heteroaryl, cycloalkylheteroaryl, heterocycloalkylheteroaryl, cycloalkenylheteroaryl, heterocycloalkenylheteroaryl, halo, —CN, —C(═NR 11 )R 15 , —OR 15 , —C(O)R 15 , —C(O)OR 15 , —C(O)N(R 15 )(R 16 ), —SR 15 , —S(O)N(R 15 )(R 16 ), —CH(R 15 )(R 16 ), —S(O) 2 N(R 15 )(R 16 ), —C(═NOR 15 )R 16 , —P(O)(OR 15 )(OR 16 ), —N(R 15 )(R 16 ), -alkyl-N(R 15 )(R 16 ), —N(R 15 )C(O)R 16 , —CH 2 —N(R 15 )C(O)R 16 , —CH 2 —N(R 15 )C(O)N(R 16 )(R 17 ), —CH 2 —R 15 ; —CH 2 N(R 15 )(R 16 ), N(R 15 )S(O)R 16 , —N(R 15 )S(O) 2 R 16 , —CH 2 —N(R 15 )S(O) 2 R 16 , —N(R 15 )S(O) 2 N(R 16 )(R 17 ), —N(R 15 )S(O)N(R 16 )(R 17 ), —N(R 15 )C(O)N(R 16 )(R 17 ), —CH 2 —N(R 15 )C(O)N(R 16 )(R 17 ), —N(R 15 )C(O)OR 16 , —CH 2 —N(R 15 )C(O)OR 16 , —S(O)R 15 , —N 3 , —NO 2 and —S(O) 2 R 15 ;

and wherein each of the alkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl, heterocycloalkylalkyl, arylcycloalkylalkyl, heteroarylcycfoalkylalkyl, arylheterocycloalkylalkyl, heteroarylheterocycloalkylalkyl, cycloalkyl, arylcycloalkyl, heteroarylcycloalkyl, heterocycloalkyl, aryl heterocycloalkyl, heteroarylheterocycloalkyl, alkenyl, arylalkenyi, cycloalkenyl, arylcycloalkenyl, heteroarylcycloalkenyl, heterocycloalkenyl, aryiheterocycloalkenyl, heteroarylheterocycloalkenyl, alkynyi, arylalkynyl, aryl, cycloalkylaryl, heterocycloalkylaryl, cycloalkenylaryl, heterocycloalkenylaryl, heteroaryl, cycloalkylheteroaryl, heterocycloalkylheteroaryl, cycloalkenylheteroaryl or heterocycloalkenylheteroaryl groups in R 21 are independently unsubstituted or substituted by 1 to 5 R 22 groups independently selected from the group consisting of alkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl, heterocycloalkylalkyl, arylcycloalkylalkyl, heteroarylcycloalkylalkyl, arylheterocycloalkylalkyl, heteroarylheterocycloalkylalkyl, cycloalkyl, arylcycloalkyl, heteroarylcycloalkyl, heterocycloalkyl, arylheterocycloalkyl, heteroarylheterocycloalkyl, alkenyl, arylalkenyl, cycloalkenyl, aryicycloalkenyl, heteroarylcycloalkenyl, heterocycloalkenyl, arylheterocycloalkenyl, heteroarylheterocycloalkenyl, alkynyl, arylalkynyl, aryl, cycloalkylaryl, heterocycloalkylaryl, cycloalkenylaryl, heterocycloalkenylaryl, heteroaryl, cycloalkylheteroaryl, heterocycloalkylheteroaryl, cycloalkenylheteroaryl, heterocycloalkenylheteroaryl, halo, —CN, —C(═NR 11 )R 15 , —OR 15 , —C(O)R 15 , —C(O)OR 15 , —C(O)N(R 15 )(R 16 ), —SR 15 , —S(O)N(R 15 )(R 16 ), —CH(R 15 )(R 16 ), —S(O) 2 N(R 15 )(R 16 ), —C(═NOR 15 )R 16 , —P(O)(OR 15 )(OR 16 ), —N(R 15 )(R 16 ), -alkyl-N(R 15 )(R 16 ), —N(R 15 )C(O)R 16 , —CH 2 —N(R 15 )C(O)R 16 , —CH 2 —N(R 15 )C(O)N(R 16 )(R 17 ), —CH 2 —R 15 ; —CH 2 N(R 15 )(R 16 ), —N(R 15 )S(O)R 16 , —N(R 15 )S(O) 2 R 16 , —CH 2 —N(R 15 )S(O) 2 R 16 , —N(R 15 )S(O) 2 N(R 16 )(R 17 ), —N(R 15 )S(O)N(R 16 )(R 17 ), —N(R 15 )C(O)N(R 16 )(R 17 ), —CH 2 —N(R 15 )C(O)N(R 16 )(R 17 ), —N(R 15 )C(O)OR 16 , —CH 2 —N(R 15 )C(O)OR 16 , —S(O)R 15 , —N 3 , —NO 2 and —S(O) 2 R 15 ;

R 30 is independently selected from the group consisting of alkylene, arylalkylene, heteroarylalkylene, cycloalkylalkylene, heterocycloalkylalkylene, aryfcycloalkylalkylene, heteroarylcycloalkylalkylene, arylheterocycloalkylalkylene, heteroarylheterocycloalkylalkylene, cycloalkylene, arylcycloalkylene, heteroarylcycloalkylene, heterocycloalkylene, arylheterocycloalkylene, heteroarylheterocycloalkylene, alkenylene, arylalkenylene, cycloalkenylene, arylcycloalkenyiene, heteroarylcycloalkenylene, heterocycloalkenylene, arylheterocycloalkenylene, heteroaryiheterocycloalkenylene, alkynylene, aryialkynylene, arylene, cycloalkylarylene, heterocycloalkylarylene, cycloalkenylarylene, heterocycloalkenylarylene, heteroarylene, cycloalkylheteroarylene, heterocycloalkylheteroarylene, cycloalkenylheteroarylene and heterocycloalkenylheteroarylene, wherein each of said R 30 groups is independently unsubstituted or substituted by replacement of 1 to 3 hydrogen atoms (where available) with 1 to 3 R 21 groups; and

R 31 is

wherein T is a bond, —O—((C(R 23 )(R 23 ))—, —S—((C(R 23 )(R 23 ))—, —NH—((C(R 23 )(R 23 ))— or —((C(R 23 )(R 23 )) 1-3 —, wherein R 23 is H.

2. A compound of claim 1 wherein R 1 is H, alkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl, heterocylocalkylalkyl or cycloalkyl.

3. A compound of claim 1 wherein R 3 is H, alkyl, aryl, aryl substituted with 1 to 5 R 21 groups, heteroaryl, heteroaryl substituted with 1 to 5 R 21 groups, cycloalkyl, heterocycloalkyl, halo, —OR 9 , cycloalkyl, or —SR 19 .

4. A compound of claim 1 wherein R 3 is H, —CH 3 , F, Cl, Br, —OCH 3 , —SCH 3 ,

5. A compound of claim 1 wherein R 4 is H, alkyl, aryl, aryl substituted with 1 to 5 R 21 groups, heteroaryl, heteroaryl substituted with 1 to 5 R 21 groups, cycloalkyl, heterocycloalkyl, halo, —OR 9 , cycloalkyl, or —SR 19 .

6. A compound of claim 1 wherein R 4 is H, —CH 3 , F, Cl, Br, —OCH 3 , —SCH 3 ,

7. A compound of claim 1 wherein R 6 is H, alkyl, cycloalkyl or cycloalkylalkyl.

8. A compound of claim 1 wherein R 6 is —CH 3 or

9. A compound of claim 1 wherein R 7 is arylene, heteroarylene, cycloalkylene, heterocycloalkylene or alkylene, wherein each of said R 7 groups is independently unsubstituted or substituted by replacement of 1 to 3 hydrogen atoms (where available) with 1 to 3 R 21 groups.

10. A compound of claim 1 wherein R 7 is

and

R 21 is —CN, —NO 2 , NH 2 , —CH 3 or halo.

11. A compound of claim 1 wherein R 30 is arytene, heteroarylene, cycloalkylene, heterocycloalkylene or alkylene, wherein each of said R 30 groups is independently unsubstituted or substituted by replacement of 1 to 3 hydrogen atoms (where available) with 1 to 3 R 21 groups.

12. A compound of claim 1 wherein R 30 is

wherein R 21 is —CN, —NO 2 , NH 2 , —CH 3 or halo.

13. A compound of claim 1 wherein T is a bond or —CH 2 —.

14. A compound of claim 1 wherein R 23 is H, alkyl, alkyl substituted with 1 to 5 R 27 groups, cycloalkyl, aryl, heteroaryl, cycloalkyl substituted with 1 to 5 R 27 groups, aryl substituted with 1 to 5 R 27 groups or heteroaryl substituted with 1 to 5 R 27 groups.

15. A compound of claim 1 wherein

R 1 is H, alkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl, heterocylocalkylalkyl or cycloalkyl;

R 3 is H, alkyl, aryl, aryl substituted with 1 to 5 R 21 groups, heteroaryl, heteroaryl substituted with 1 to 5 R 21 groups, cycloalkyl, heterocycloalkyl, halo, —OR 9 , cycloalkyl, or —SR 19 ;

R 4 is H, alkyl, aryl, aryl substituted with 1 to 5 R 21 groups, heteroaryl, heteroaryl substituted with 1 to 5 R 21 groups, cycloalkyl, heterocycloalkyl, halo, —OR 9 , cycloalkyl, or —SR 19 ;

R 6 is H, alkyl, cycloalkyl or cycloalkylalkyl;

R 7 is arylene, heteroarylene, cycloalkylene, heterocycloalkylene or alkylene, wherein each of said R 7 groups is independently unsubstituted or substituted by replacement of 1 to 3 hydrogen atoms (where available) with 1 to 3 R 21 groups;

R 30 is arylene, heteroarylene, cycloalkylene, heterocycloalkylene or alkylene, wherein each of said R 30 groups is independently unsubstituted or substituted by replacement of 1 to 3 hydrogen atoms (where available) with 1 to 3 R 21 groups;

T is a bond or —CH 2 —;

R 31 is

and

R 23 is H, alkyl, alkyl substituted with 1 to 5 R 27 groups, cycloalkyl, aryl, heteroaryl, cycloalkyl substituted with 1 to 5 R 27 groups, aryl substituted with 1 to 5 R 27 groups or heteroaryl substituted with 1 to 5 R 27 groups.

16. A compound of claim 15 wherein R 3 is H, —CH 3 , F, Cl, Br, —OCH 3 , —SCH 3 ,

R 4 is H, —CH 3 , F, Cl, Br, —OCH 3 , —SCH 3 ,

R 6 is —CH 3 or

R 7 is

and

R 21 is —CN, —NO 2 , NH 2 , —CH 3 or halo;

R 30 is

wherein R 21 is —CN, —NO 2 , NH 2 , —CH 3 or halo;

and

R 23 is H, —CH 3 , —CF 3 , —CH 2 —O—CH 3 , —CH 2 —CH 2 —CH 3 , —CH 2 —CH 2 —(CH)—(CH 3 ) 2 ,

or —CH—(CH 3 ) 2 .

17. A compound, or a pharmaceutically acceptable salt thereof, said compound selected from the group consisting of:

18. A pharmaceutical composition comprising an effective amount of a compound of claim 1 , or a pharmaceutically acceptable salt thereof, and a pharmaceutically effective carrier.

19. A pharmaceutical composition comprising an effective amount of a compound of claim 17 , or a pharmaceutically acceptable salt thereof, and a pharmaceutically effective carrier.

20. A pharmaceutical composition comprising an effective amount of a compound of claim 1 , or a pharmaceutically acceptable salt thereof, and an effective amount of at least one additional agent selected from the group consisting of a cholinesterase inhibitor, a muscarinic m 1 agonist, a muscarinic m 2 antagonist, a gamma secretase inhibitor; an HMG-CoA reductase inhibitor and a non-steroidal anti-inflammatory agent, each said additional agent optionally in a pharmaceutically effective carrier.

21. A pharmaceutical composition comprising an effective amount of a compound of claim 17 , or a pharmaceutically acceptable salt thereof, and an effective amount of at least one additional agent selected from the group consisting of a cholinesterase inhibitor, a muscarinic m 1 agonist, a muscarinic m 2 antagonist, a gamma secretase inhibitor; an HMG-CoA reductase inhibitor and a non-steroidal anti-inflammatory agent, each said additional agent optionally in a pharmaceutically effective carrier.