Inhibitors of plasma kallikrein

1. A method of treating a disease or condition selected from the group consisting of retinopathy, proliferative retinopathy, neuropathy, increased blood pressure, brain edema, increased albumin excretion, macroalbuminuria and nephropathy, said method comprising administering to a subject in need thereof a pharmaceutically effective amount of a compound having formula (I):

wherein

Ar is a bond or an aromatic ring selected from the group consisting of benzene, pyridine and pyrimidine;

the subscript m is an integer of from 0 to 5;

each R a is independently selected from the group consisting of cycloalkyl, (C 1 -C 8 )haloalkyl, halogen, —OH, —OR 1 , —OSi(R 1 ) 3 , —OC(O)O—R 1 , —OC(O)R 1 , —OC(O)NHR 1 , —OC(O)N(R 1 ) 2 , —SH, —SR 1 , —S(O)R 1 , —S(O) 2 R 1 , —SO 2 NH 2 , —S(O) 2 NHR 1 , —S(O) 2 N(R 1 ) 2 , —NHS(O) 2 R 1 , —NR 1 S(O) 2 R 1 , —C(O)NH 2 , —C(O)NHR 1 , —C(O)N(R 1 ) 2 , —C(O)R 1 , —C(O)H, —C(═S)R 1 , —NHC(O)R 1 , —NR 1 C(O)R 1 , —NHC(O)NH 2 , —NR 1 C(O)NH 2 , —NR 1 C(O)NHR 1 , —NHC(O)NHR 1 , —NR 1 C(O)N(R 1 ) 2 , —NHC(O)N(R 1 ) 2 , —CO 2 H, —CO 2 R 1 , —NHCO 2 R 1 , —NR 1 CO 2 R 1 , —R 1 , —CN, —NO 2 , —NH 2 , —NHR 1 , —N(R 1 ) 2 , —NR 1 S(O)NH 2 , —NR 1 S(O) 2 NHR 1 , —NH 2 C(═NR 1 )NH 2 , —N═C(NH 2 )NH 2 , —C(═NR 1 )NH 2 , —NH—OH, —NR 1 —OH, —NR 1 —OR 1 , —N═C═O, —N═C═S, —Si(R 1 ) 3 , —NH—NHR 1 , —NHC(O)NHNH 2 , NO, —N═C═NR 1 and —S—CN, wherein each R 1 is independently alkyl;

L is a linking group selected from the group consisting of a bond, CH 2 and SO 2 ;

Q a , Q b , and Q c are each members independently selected from the group consisting of N, S, O and C(R q ) wherein each R q is independently selected from the group consisting of H, C 1-8 alkyl, halo and phenyl, and the ring having Q a , Q b , Q c and Y as ring vertices is a five-membered ring having two double bonds;

Y is a member selected from the group consisting of C and N;

when Ar is a bond, m is 1;

when Ar is an aromatic ring, m is an integer of from 0-5; and

pharmaceutically acceptable salts thereof.

2. A method of claim 1 , wherein said disease or condition is proliferative retinopathy.

3. A method of claim 1 , wherein said disease or condition is increased blood pressure.

4. A method of claim 1 , wherein said compound is selected from the group consisting of:

5. A method of treating a disease or condition selected from the group consisting of stroke, inflammation, pain, acute myocardial infarction, deep vein thrombosis (DVT), post fibrinolytic treatment conditions, angina, angioedema, sepsis, arthritis, blood loss during cardiopulmonary bypass, inflammatory bowel disease, diabetes, retinopathy, proliferative retinopathy, neuropathy, increased blood pressure, brain edema, increased albumin excretion, macroalbuminuria and nephropathy, said method comprising administering to a subject in need thereof a pharmaceutically effective amount of a compound having formula II:

wherein the subscript m is an integer of from 0 to 5;

the subscript n is an integer of from 0 to 4;

the subscript q is an integer of from 0 to 1;

L is a linking group selected from the group consisting of a bond, CH 2 and SO 2 ;

each of R b and R c is independently selected from the group consisting of cycloalkyl, (C 1 -C 8 )haloalkyl, halogen, —OH, —OR 2 , —OSi(R 2 ) 3 , —OC(O)O—R 2 , —OC(O)R 2 , —OC(O)NHR 2 , —OC(O)N(R 2 ) 2 , —SH, —SR 2 , —S(O)R 2 , —S(O) 2 R 2 , —SO 2 NH 2 , —S(O) 2 NHR 2 , —S(O) 2 N(R 2 ) 2 , —NHS(O) 2 R 2 , —NR 2 S(O) 2 R 2 , —C(O)NH 2 , —C(O)NHR 2 , —C(O)N(R 2 ) 2 , —C(O)R 2 , —C(O)H, —C(═S)R 2 , —NHC(O)R 2 , —NR 2 C(O)R 2 , —NHC(O)NH 2 , —NR 2 C(O)NH 2 , —NR 2 C(O)NHR 2 , —NHC(O)NHR 2 , —NR 2 C(O)N(R 2 ) 2 , —NHC(O)N(R 2 ) 2 , —CO 2 H, —CO 2 R 2 , —NHCO 2 R 2 , —NR 2 CO 2 R 2 , —R 2 , —CN, —NO 2 , —NH 2 , —NHR 2 , —N(R 2 ) 2 , —NR 2 S(O)NH 2 , —NR 2 S(O) 2 NHR 2 , —NH 2 C(═NR 2 )NH 2 , —N═C(NH 2 )NH 2 , —C(═NR 2 )NH 2 , —NH—OH, —NR 2 —OH, —NR 2 —OR 2 , —N═C═O, —N═C═S, —Si(R 2 ) 3 , —NH—NHR 2 , —NHC(O)NHNH 2 , NO, —N═C═NR 2 and —S—CN, wherein each R 2 is independently alkyl;

when q is 0, Z is a member selected from the group consisting of O, S and NR d wherein R d is H or C 1 -C 8 alkyl;

when q is 1, Z is N; and

pharmaceutically acceptable salts thereof.

6. A method of claim 5 , wherein said disease or condition is proliferative retinopathy or increased blood pressure.

7. A method of claim 5 , wherein said disease or condition is proliferative retinopathy.