Derivatives of hydantoins, thiohydantoins, pyrimidinediones and thioxopyrimidinones, their preparation processes and their use as medicaments

1. A compound of the formula

in racemic or enantiomeric form,

R1 is selected from the group consisting of (C 1 –C 12 ) alkyl, (C 0 –C 6 )alkyl-C(O)—O—Z1, (C 0 –C 6 ) alkyl-C(O)—NH—(CH 2 ) p —Z 2 and unsubstituted or substituted aryl,

Z1 is selected from the group consisting of H, (C 1 –C 6 ) alkyl and —(CH 2 ) p -aryl;

Z2 is selected from the group consisting of amino, (C 1 –C 12 )alkylamino, (C 3 –C 8 ) cycloalkylamino, N,N-di-(C 1 –C 12 ) alkylamino,

 NH—C—(O)—O—(CH 2 ) p -phenyl, NH—C(O)—O—(CH 2 ) p —(C 1 –C 6 ) alkyl, phenyl, naphthyl, pyridinyl, furanyl, pyrrolyl, thiophenyl, thiazolyl, indanyl, indolyl, imidazolyl, benzofuranyl, benzothiophenyl and phthalimidyl and carbocyclic aralkyl selected from the group consisting of benzyl, phenylethyl, phenylpropyl and phenylbutyl and heterocyclic aralkyl selected from the group consisting of indolylalkyl and phthalimidoalkyl, and unsubstituted or substituted heterocyclic non-aromatic;

R2 is selected from the group consisting of H, (C 1 –C 12 ) alkyl and aryl optionally substituted;

R3 is H or (CH 2 ) p —Z3;

Z3 is selected from the group consisting of (C 1 –C 12 ) alkyl, (C 1 –C 12 ) alkenyl, (C 3 –C 8 ) cycloalkyl, Y1-(CH 2 ) p -phenyl-(X1) n′ — , —S—(C 1 –C 12 ) alkyl, S—(C 1 –C 12 ) alkyl-S—S—(C 1 –C 12 ) alkyl, and unsubstituted or substituted carbocyclic or heterocyclic aryl;

n′ is 0 or 1,

 bis-arylalkyl or

Y1 is O, S, NH or is absent;

R4 is (CH 2 ) p —Z4;

Z4 is selected from the group consisting of amino, (C 1 –C 12 ) alkyl, (C 3 –C 8 ) cycloalkyl, (C 1 –C 12 ) alkylamino, N,N-di-(C 1 –C 12 ) alkylamino, amino (C 3 –C 6 ) cycloalkyl, amino (C 1 –C 6 ) alkyl (C 3 –C 8 ) cycloalkyl (C 1 –C 6 ) alkyl, carbocyclic or heterocyclic aminoaryl, (C 1 –C 12 ) alkoxy, (C 1 –C 12 ) alkenyl, N—C(O)O(C 1 –C 6 ) alkyl, unsubstituted or substituted carbocyclic or heterocyclic aryl, unsubstituted or substituted heterocyclic non-aromatic radical, bis-arylalkyl, di-arylalkyl,

 and N (R6)(R7), R6 and R7 taken together with the nitrogen atom which they carry form together a heterocycle of 5 to 7 ring members;

R5 is selected from the group consisting of H, —(CH 2 ) p —C(O)—(CH 2 ) p —Z5, —(CH 2 ) p —Z5, —(CH 2 ) p —OZ5 or —(C 0 –C 6 ) alkyl-C(O)—NH—(CH 2 ) p —Z5,

Z5 is unsubstituted or substituted member selected from the group consisting of —(C 1 –C 12 ) alkyl, benzo[b]thiophene, phenyl, naphthyl, benzo[b]furanyl, thiophene, isoxazolyl, indolyl,

 it being understood that the above substituents are selected from the group consisting of Cl, F, Br, I, CF 3 , NO 2 , OH, NH 2 , CN, N 3 , —OCF 3 , (C 1 –C 12 ) alkyl, (C 1 –C 12 ) alkoxy, —(CH 2 ) p -phenyl-(XI) q , —NH—C(O)—(C 1 –C 6 ) alkyl, —NH—C(O)O—(C 1 –C 6 ) alkyl, —S—(C 1 –C 6 ) alkyl, —S-phenyl-(X1) q , —O—(CH 2 ) p -phenyl-(X1) q , —(CH 2 ) p —C(O)—O—(C 1 –C 6 ) alkyl, —(CH 2 ) p —C(O)—(C 1 –C 6 ) alkyl, —O—(CH 2 ) p —NH 2 , —O—(CH 2 ) p —NH—(C 1 –C 6 ) alkyl, —O—(CH 2 ) p —N-di((C 1 –C 6 ) alkyl) and ((C 0 –C 12 ) alkyl-(X1) q ;

X1, each time that it occurs, is independently selected from the group consisting of H, Cl, F, Br, I, CF 3 , NO 2 , OH, NH 2 , CN, N 3 , —OCF 3 , (C 1 –C 12 ) alkyl, (C 1 –C 12 ) alkoxy, —S—(C 1 –C 6 ) alkyl, —(CH 2 ) p -amino, —(CH 2 ) p —NH—(C 1 –C 6 ) alkyl, —(CH 2 ) p —N-di-((C 1 –C 6 ) alkyl), —(CH 2 ) p -phenyl and —(CH 2 ) p —NH—(C 3 –C 6 )-cycloalkyl;

p each time that it occurs is independently an integer from 0 to 6;

q each time that it occurs is independently an integer from 1 to 5;

X is O or S;

n is 0; and

m is 1, 2 or 3;

or a pharmaceutically acceptable salt of said compound.

2. A compound of claim 1 , wherein

R1 is unsubstituted or substituted aryl;

R2 is H or alkyl;

R3 is selected from the group consisting of

R4 is selected from the group consisting of

R5 is H or alkyl;

or a pharmaceutically acceptable salt of said compound.

3. A compound of claim 1 , wherein

R1 is unsubstituted phenyl or phenyl substituted with a member of the group consisting of halogen, (C 1 –C 12 ) alkyl, (C 1 –C 12 ) alkoxy and nitro;

R2 and R5 are H or alkyl;

R3 is H or (CH 2 ) p —Z3;

Z3 is selected from the group consisting of (C 1 –C 12 ) alkyl, (C 3 –C 8 ) cycloalkyl, Y1-(CH 2 ) p -phenyl-(X1) n , unsubstituted or substituted carbocyclic or heterocyclic aryl, unsubstituted or substituted non-aromatic heterocyclic, bis-arylalkyl, di-arylalkyl,

Y1 is O, S, NH or is absent;

R4 is (CH 2 ) p —Z4;

Z4 is selected from the group consisting of amino, (C 1 –C 12 ) alkyl, (C 3 –C 8 ) cycloalkyl, (C 1 –C 12 ) alkylamino, N,N-di-(C 1 –C 12 ) alkylamino, amino (C 3 –C 6 ) cycloalkyl, amino (C 1 –C 6 ) alkyl (C 3 –C 8 ) cycloalkyl (C 1 –C 6 ) alkyl, carbocyclic or heterocyclic aminoaryl, an unsubstituted or substituted carbocyclic and heterocyclic aryl, unsubstituted or substituted non-aromatic heterocyclic, bis-arylalkyl, di-arylalkyl,

 it being understood that the substituents or substituted phenyl is at least one member of the group consisting of Cl, F, Br, I, CF 3 , NO 2 , OH, NH 2 , CN, N 3 , —OCF 3 , (C 1 –C 12 ) alkoxy, —(CH 2 ) p -phenyl-(X1) q , —NH—C(O)O—(C 1 –C 6 )alkyl, —NH—C(O)o-(C 1 –C 6 ) alkyl, —S—(C 1 –C 6 ) alkyl, —S-phenyl-(X1) q , —O—(CH 2 ) p -phenyl-(X1) q , —(CH 2 ) p —C(O)—O—(C 1 –C 6 ) alkyl, —(CH 2 ) p —C(O)—(C 1 –C 6 ) alkyl, —O—(CH 2 ) p —NH 2 , —O—(CH 2 ) p —NH—(C 1 –C 6 ) alkyl, —O—(CH 2 ) p —N-di-((C 1 –C 6 ) alkyl and —(C 0 –C 12 ) alkyl-(X1) q ;

X1, each time that it occurs, is selected from the group consisting of H, Cl, F, Br, I, CF 3 , NO 2 , OH, NH 2 , CN, N 3 , —OCF 3 , (C 1 –C 12 ) alkyl, (C 1 –C 12 ) alkoxy, —S—(C 1 –C 6 ) alkyl, —(CH 2 ) p -amino, —(CH 2 ) p —NH—(C 1 –C 6 ) alkyl, —(CH 2 ) p —N-di((C 1 –C 6 ) alkyl), —(CH 2 ) p -phenyl and —(CH 2 ) p —NH—(C 3 –C 6 ) cycloalkyl;

p each time that it occurs is independently an integer from 0 to 6; and

q each time that it occurs is independently an integer from 1 to 5.

4. A compound of claim 3 , wherein

R1 is phenyl or phenyl substituted by a member selected from the group consisting of halogen, (C 1 –C 12 ) alkyl, (C 1 –C 12 ) alkoxy and nitro;

R2 and R5 are H or alkyl;

R3 is (CH 2 ) p —Z3,

Z3 is selected from the group consisting of (C 3 –C 8 ) cycloalkyl, unsubstituted or substituted phenyl, naphthyl, furanyl, thiophene, indolyl, pyrrolyl and benzothiophene;

R4 is (CH 2 ) p —Z4;

Z4 is selected from the group consisting of amino, (C 1 –C 12 ) alkylamino, N,N-di-(C 1 –C 12 ) alkylamino and amino (C 1 –C 6 ) alkyl (C 3 –C 6 ) cycloalkyl-(C 1 –C 6 ) alkyl;

X is S;

p each time that it occurs is independently an integer from 0 to 6; and

m is 1, 2 or 3.

5. A compound of claim 4 selected from the compounds of formulae

wherein R′3 is selected from

and R′3 is selected from

or a pharmaceutically acceptable salt of said compound.

6. A process for the preparation of a compound of claim 1 in which n is 0, comprising reacting a compound of the formula

in which m, R1, R2, R3 and R5 have the same meaning as in claim 1 , and the O—GP radical is a parting protective group derived from an alcohol and with an isocyanate of the formula

R4N═C═X  (III)

in which R4 and X have the same meaning as claim 1 , in the presence of a tertiary base for the duration of approximately 1 to 48 hours and at a temperature between 20 and 70° C.

7. A compound of claim 1 , wherein Z3 is selected from the group consisting of

unsubstituted or substituted non-aromatic heterocyclic, bis-arylalkyl, diarylalkyl and

or a pharmaceutically acceptable salt of said compound.

8. The process of claim 6 wherein the protective parting group is an alcohol derived from the group consisting of benzyl alcohol, methanol and tert-butanol.