Spiropyrrolidines as MDM2 inhibitors

1. A compound of formula I, or a pharmaceutically acceptable salt thereof:

wherein A are halogens and are independently selected from Cl and F and B are independently selected from Cl, H and F;

R 1 is aryl, substituted aryl, heteroaryl and substituted heteroaryl;

R 2 is hydrogen or it is a carbon-carbon bond with either X, R 3 or R 4 ;

R 3 and R 4 are independently selected from H, lower alkyl and substituted lower alkyls, cycloalkyls, substituted cycloalkyls, alkenyls, substituted alkenyls, alkyns, substituted alkyns, or they together can form a 3, 4, or 5 membered ring or one of them can form a C—C bond with R 2 ;

X is independently selected from F, CN, and

 where R 5 and R 6 are independently selected from hydrogen and F; and

R 7 is halogen and is selected independently from Cl, Br and F.

2. A compound of claim 1 , or a pharmaceutically acceptable salt thereof, wherein

R 2 is H; R 3 and R 4 are both methyl; and X is CN.

3. A compound of claim 1 , or a pharmaceutically acceptable salt thereof, wherein

R 2 forms a C—C bond with X; and

R 3 and R 4 are independently selected from methyl, lower alkyl, substituted lower alkyl, alkenyl and substituted lower alkenyl, or they together can form a 3, 4, or 5 membered aliphatic ring.

4. A compound of claim 1 , or a pharmaceutically acceptable salt thereof, which conform to formula II:

wherein R 5 and R 6 are independently selected from hydrogen and F.

5. A compound of claim 4 , or a pharmaceutically acceptable salt thereof, wherein R 2 is hydrogen; and R 5 and R 6 are both H.

6. A compound of claim 4 , or a pharmaceutically acceptable salt thereof, wherein R 2 is hydrogen; R 3 and R 4 are both methyl; and R 5 and R 6 are both H.

7. A compound of claim 4 , or a pharmaceutically acceptable salt thereof, wherein R 2 is H; R 3 and R 4 together form a 3, 4, or 5 membered aliphatic ring, such as a cyclopropyl ring; and R 5 and R 6 are both H.

8. A compound of claim 1 , or a pharmaceutically acceptable salt thereof, which conform to formula III:

9. A compound of claim 1 , or a pharmaceutically acceptable salt thereof, which conform to formula IV:

A is independently selected from Cl, F, and Br; B is selected from F, H; and

R 3 and R 4 are independently selected from H, and methyl.

10. A compound of claim 1 , or a pharmaceutically acceptable salt thereof, wherein R 1 is, but not limited to, one of the following:

Where R is independently selected from groups of halogen, hydroxyl, hydrogen, lower alkyl, substituted lower alkyl, cycloalkyl, substituted cycloalkyl, lower alkoxy, substituted lower alkoxy, cyano, amino, substituted amino, substituted sulfonylamino, aminosulfonyl, substituted aminosulfonyl, hydroxycarbonyl, lower alkoxycarbonyl, aminocarbonyl, substituted aminocarbonyl, substituted carbonylamino, amidino, substituted amidino, guanidino, substituted guanidino, tetrazoles, substituted tetrazoles and can independently substitute any single position or multiple positions of the aryl/hetero aryl ring and preferably not to exceed three positions; Or when the substitution occurs at two adjacent positions, it can form a five or six membered hetero ring.

11. A compound of claim 10 , or a pharmaceutically acceptable salt thereof, wherein R 1 is one of the following:

12. A compound of claim 10 , or a pharmaceutically acceptable salt thereof, wherein R 1 is one of the following:

13. A compound of claim 10 , or a pharmaceutically acceptable salt thereof, wherein R is independently selected from groups of halogen, lower alkyl, substituted lower alkyl, lower alkoxy, substituted lower alkoxy, cyano, aminosulfonyl, substituted aminosulfonyl, hydroxycarbonyl, lower alkoxycarbonyl, aminocarbonyl, substituted aminocarbonyl, and can independently substitute multiple positions of the aryl/heteroaryl ring; Where R is independently selected from groups of halogen, hydroxyl, hydrogen, lower alkyl, substituted lower alkyl, cycloalkyl, substituted cycloalkyl, lower alkoxy, substituted lower alkoxy, cyano, amino, substituted amino, substituted sulfonylamino, aminosulfonyl, substituted aminosulfonyl, hydroxycarbonyl, lower alkoxycarbonyl, aminocarbonyl, substituted aminocarbonyl, substituted carbonylamino, amidino, substituted amidino, guanidino, substituted guanidino, tetrazoles, substituted tetrazoles and can independently substitute any single position or multiple positions of the aryl/heteroaryl ring and preferably not to exceed three positions; Or when the substitution occurs at two adjacent positions, it can form a five or six membered hetero ring.

14. A compound of claim 1 , or a pharmaceutically acceptable salt thereof, which is:

Racemic ethyl 4-[[(2′R,3R,3′S,5′S)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-5′-(2-methylprop-1-enyl)-2-oxo-spiro[indoline-3,4′-pyrrolidine]-2′-carbonyl]amino]-3-methoxy-benzoate;

Racemic 4-[[(2′R,3R,3′S,5′S)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-5′-(2-methylprop-1-enyl)-2-oxo-spiro[indoline-3,4′-pyrrolidine]-2′-carbonyl]amino]-3-methoxy-benzoic acid;

Racemic (2′R,3R,3′S,5′S)-N-(4-carbamoyl-2-methoxy-phenyl)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-5′-(2-methylprop-1-enyl)-2-oxo-spiro[indoline-3,4′-pyrrolidine]-2′-carboxamide;

Racemic ethyl 4-[[(2′R,3R,3′S,5′S)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-2-oxo-5′-[(2R)-3,3,3-trifluoro-2-methyl-propyl]spiro[indoline-3,4′-pyrrolidine]-2′-carbonyl]amino]-3-methoxy-benzoate;

Racemic 4-[[(2′R,3R,3′S,5′S)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-2-oxo-5′-[(2S)-3,3,3-trifluoro-2-methyl-propyl]spiro[indoline-3,4′-pyrrolidine]-2′-carbonyl]amino]-3-methoxy-benzoic acid;

Racemic 4-[[(2′R,3R,3′S,5′S)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-2-oxo-5′-[(2R)-3,3,3-trifluoro-2-methyl-propyl]spiro[indoline-3,4′-pyrrolidine]-2′-carbonyl]amino]-3-methoxy-benzoic acid;

Racemic (2′R,3R,3′S,5′S)-N-(4-carbamoyl-2-methoxy-phenyl)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-2-oxo-5′-[(2S)-3,3,3-trifluoro-2-methyl-propyl]spiro[indoline-3,4′-pyrrolidine]-2′-carboxamide;

Racemic (2′R,3R,3′S,5′S)-N-(4-carbamoyl-2-methoxy-phenyl)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-2-oxo-5′-[(2R)-3,3,3-trifluoro-2-methyl-propyl]spiro[indoline-3,4′-pyrrolidine]-2′-carboxamide;

Racemic (4-ethoxycarbonyl-2-methoxy-phenyl) (2′R,3R,3′S,5′S)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-5′-(3-fluoro-2,2-dimethyl-propyl)-2-oxo-spiro[indoline-3,4′-pyrrolidine]-2′-carboxamide;

Racemic 4-[(2′R,3R,3′S,5′S)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-5′-(3-fluoro-2,2-dimethyl-propyl)-2-oxo-spiro[indoline-3,4′-pyrrolidine]-2′-carbonyl]amino-3-methoxy-benzoic acid;

Racemic (4-carbamoyl-2-methoxy-phenyl) (2′R,3R,3′S,5′S)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-5′-(3-fluoro-2,2-dimethyl-propyl)-2-oxo-spiro[indoline-3,4′-pyrrolidine]-2′-carboxamide;

Chiral 4-[(2′R,3R,3′S,5′S)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-5′-(3-fluoro-2,2-dimethyl-propyl)-2-oxo-spiro[indoline-3,4′-pyrrolidine]-2′-carbonyl]-3-methoxy-benzoic acid;

Chiral (4-carbamoyl-2-methoxy-phenyl) (2′R,3R,3′S,5′S)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-5′-(3-fluoro-2,2-dimethyl-propyl)-2-oxo-spiro[indoline-3,4′-pyrrolidine]-2′-carboxamide;

Chiral ethyl-4-[[(2′R,3′R,3′S,5′S)-6-chloro-3′(3-chloro-2-fluoro-phenyl)-2-oxo-5′-[(2R)-3,3,3-trifluoro-2-methyl-propyl]spiro[indoline-2,4′-pyrrolidine]-2′-carbonyl]amino]-3-methoxy-benzoate;

Chiral 4-[[(2′R,3R,3′S,5′S)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-2-oxo-5′-[(2R)-3,3,3-trifluoro-2-methyl-propyl]spiro[indoline-3,4′-pyrrolidine]-2′-carbonyl]amino]-3-methoxy-benzoic acid;

Chiral (2′R,3R,3′S,5′S)-N-(4-carbamoyl-2-methoxy-phenyl)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-2-oxo-5′-[(2R)-3,3,3-trifluoro-2-methyl-propyl]spiro[indoline-3,4′-pyrrolidine]-2′-carboxamide;

Racemic tert-butyl (2′R,3R,3′S,5′S)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-5′-(2-cyano-2-methyl-propyl)-2-oxo-spiro[indoline-3,4′-pyrrolidine]-2′-carboxylate;

Racemic (2′R,3R,3′S,5′S)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-5′-(2-cyano-2-methyl-propyl)-2-oxo-spiro[indoline-3,4′-pyrrolidine]-2′-carboxylic acid;

Racemic methyl 4-[[(2′R,3R,3′S,5′S)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-5′-(2-cyano-2-methyl-propyl)-2-oxo-spiro[indoline-3,4′-pyrrolidine]-2′-carbonyl]amino]benzoate;

Racemic 4-[[(2′R,3R,3′S,5′S)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-5′-(2-cyano-2-methyl-propyl)-2-oxo-spiro[indoline-3,4′-pyrrolidine]-2′-carbonyl]amino]benzoic acid;

Racemic (2′R,3R,3′S,5′S)-N-(4-carbamoylphenyl)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-5′-(2-cyano-2-methyl-propyl)-2-oxo-spiro[indoline-3,4′-pyrrolidine]-2′-carboxamide;

Racemic (2′R,3R,3′S,5′S)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-5′-(2-cyano-2-methyl-propyl)-N-[4-(2-hydroxyethoxy)phenyl]-2-oxo-spiro[indoline-3,4′-pyrrolidine]-2′-carboxamide;

Racemic methyl 5-[[(2′R,3R,3′S,5′S)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-5′-(2-cyano-2-methyl-propyl)-2-oxo-spiro[indoline-3,4′-pyrrolidine]-2′-carbonyl]amino]thiophene-2-carboxylate;

Racemic 5-[[(2′R,3R,3′S,5′S)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-5′-(2-cyano-2-methyl-propyl)-2-oxo-spiro[indoline-3,4′-pyrrolidine]-2′-carbonyl]amino]thiophene-2-carboxylic acid;

Racemic (2′R,3R,3′S,5′S)-N-(5-carbamoyl-2-thienyl)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-5′-(2-cyano-2-methyl-propyl)-2-oxo-spiro[indoline-3,4′-pyrrolidine]-2′-carboxamide;

Racemic methyl 5-[[(2′R,3R,3′S,5′S)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-5′-(2-cyano-2-methyl-propyl)-2-oxo-spiro[indoline-3,4′-pyrrolidine]-2′-carbonyl]amino]pyridine-2-carboxylate;

Racemic 5-[[(2′R,3R,3′S,5′S)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-5′-(2-cyano-2-methyl-propyl)-2-oxo-spiro[indoline-3,4′-pyrrolidine]-2′-carbonyl]amino]pyridine-2-carboxylic acid;

Racemic methyl 4-[[(2′R,3R,3′S,5′S)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-5′-(2-cyano-2-methyl-propyl)-2-oxo-spiro[indoline-3,4′-pyrrolidine]-2′-carbonyl]amino]-3-methoxy-benzoate;

Racemic 4-[[(2′R,3R,3′S,5′S)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-5′-(2-cyano-2-methyl-propyl)-2-oxo-spiro[indoline-3,4′-pyrrolidine]-2′-carbonyl]amino]-3-methoxy-benzoic acid;

Racemic (2′R,3R,3′S,5′S)-N-(4-carbamoyl-2-methoxy-phenyl)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-5′-(2-cyano-2-methyl-propyl)-2-oxo-spiro[indoline-3,4′-pyrrolidine]-2′-carboxamide;

Chiral 4-[[(2′R,3R,3′S,5′S)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-5′-(2-cyano-2-methyl-propyl)-2-oxo-spiro[indoline-3,4′-pyrrolidine]-2′-carbonyl]amino]-3-methoxy-benzoic acid

Racemic methyl 4-[[(2′R,3R,3′S,5′S)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-5′-(2-cyano-2-methyl-propyl)-2-oxo-spiro[indoline-3,4′-pyrrolidine]-2′-carbonyl]am ino]-3-fluoro-benzoate;

Racemic 4-[[(2′R,3R,3′S,5′S)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-5′-(2-cyano-2-methyl-propyl)-2-oxo-spiro[indoline-3,4′-pyrrolidine]-2′-carbonyl]amino]-3-fluoro-benzoic acid;

Racemic methyl 4-[[(2′R,3R,3′S,5′S)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-5′-(2-cyano-2-methyl-propyl)-2-oxo-spiro[indoline-3,4′-pyrrolidine]-2′-carbonyl]am ino]-3-fluoro-benzoate;

Racemic 4-[[(2′R,3R,3′S,5′S)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-5′-(2-cyano-2-methyl-propyl)-2-oxo-spiro[indoline-3,4′-pyrrolidine]-2′-carbonyl]amino]-3-chloro-benzoic acid;

Racemic methyl-4-[[(2′R,3′R,3′S,5′S)-6-chloro-3′(3-chloro-2-fluoro-phenyl)-2-oxo-5′-(3,3,3-trifluoro-2,2-dimethyl-propyl)spiro[indoline-3,4′-pyrrolidine]-2′-carbonyl]amino]-3-methoxy-benzoate;

Racemic 4-[[(2′R,3R,3′S,5′S)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-2-oxo-5′-[(3,3,3-trifluoro-2,2-dimethyl-propyl)spiro[indoline-3,4′-pyrrolidine]-2′-carbonyl]amino]-3-methoxy-benzoic acid;

Racemic (2′R,3R,3′S,5′S)-N-(4-carbamoyl-2-methoxy-phenyl)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-2-oxo-5′-(3,3,3-trifluoro-2,2-dimethyl-propyl)spiro[indoline-3,4′-pyrrolidine]-2′-carboxamide;

Chiral methyl-4-[[(2′R,3′R,3′S,5′S)-6-chloro-3′(3-chloro-2-fluoro-phenyl)-2-oxo-5′-[(2S)-3,3,3-trifluoro-2-methyl-propyl]spiro[indoline-2,4′-pyrrolidine]-2′-carbonyl]amino]-3-methoxy-benzoate;

Chiral 4-[[(2′R,3R,3′S,5′S)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-2-oxo-5′-[(2S)-3,3,3-trifluoro-2-methyl-propyl]spiro[indoline-3,4′-pyrrolidine]-2′-carbonyl]amino]-3-methoxy-benzoic acid;

Chiral (2′R,3R,3′S,5′S)-N-(4-carbamoyl-2-methoxy-phenyl)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-2-oxo-5′-[(2S)-3,3,3-trifluoro-2-methyl-propyl]spiro[indoline-3,4′-pyrrolidine]-2′-carboxamide;

Racemic 4-{[6-chloro-4′-(3-chloro-2-fluoro-phenyl)-2′-(1-fluoromethyl-cyclopropylmethyl)-2-oxo-1,2-dihydro-spiro[indole-3,3′-pyrrolidin]e-5′-carbonyl]-amino}-3-methoxy-benzoic acid methyl ester;

Racemic 4-{[6-chloro-4′-(3-chloro-2-fluoro-phenyl)-2′-(1-fluoromethyl-cyclopropylmethyl)-2-oxo-1,2-dihydro-spiro[indole-3,3′-pyrrolidin]e-5′-carbonyl]-amino}-3-methoxy-benzoic acid;

Racemic 6-chloro-4′-(3-chloro-2-fluoro-phenyl)-2′-(1-fluoromethyl-cyclopropyl methyl)-2-oxo-1,2-dihydro-spiro[indole-3,3′-pyrrolidine]-5′-carboxylic acid (4-carbamoyl-2-methoxy-phenyl)-amide;

Chiral 4-[[(2′R,3R,3′S,5′S)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-5′-[[1(fluoromethyl)cyclopropyl]methyl]-2-oxo-spiro[indoline-3,4′-pyrrolidine]-2′-carbonyl]amino]-3-methoxy-benzoic acid; or Chiral (2′R,3R,3′S,5′S)-N-(4-carbamoyl-2-methoxy-phenyl)-6-chloro-3′-(3-chloro-2-fluoro-phenyl)-5′-[[1-(fluoromethyl)cyclopropyl]methyl]-2-oxo-spiro[indoline-3,4′-pyrrolidine]-2′-carboxamide.

15. A pharmaceutical composition, comprising a compound of claim 1 , and a pharmaceutically acceptable salt, pro-drug or excipient.

16. A method of treating a proliferative disorder characterized by over expression of MDM2 comprising administering to a subject an effective amount of a compound of claim 1 , or a pharmaceutically acceptable salt thereof, wherein the proliferative disorder is breast, colon, colorectal, leukemia, melanoma, neuroblastoma, pancreatic, prostate, kidney, breast, osteosarcoma or lung cancer.

17. A compound of claim 6 , or a pharmaceutically acceptable salt thereof, wherein R 1 is:

18. A compound of claim 7 or a pharmaceutically acceptable salt thereof, wherein R 1 is:

19. A compound of claim 9 or a pharmaceutically acceptable salt thereof, wherein R 1 is:

20. A method of inhibiting MDM2 comprising administering to a subject in need thereof an effective amount of a compound of claim 1 or a pharmaceutically acceptable salt thereof.