Chemotherapeutic agents

1 . A compound of Formula I:

or a pharmaceutically acceptable salt thereof,

wherein:

A and B are each independently selected from the group consisting of

alkyl, alkenyl, alkynyl, arylalkyl, heteroarylalkyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl;

in which arylalkyl, heteroarylalkyl, cycloalkyl, heterocycloalkyl, aryl and heteroaryl groups may be connected with another ring through a single bond or fused with at least one other ring, and these rings optionally substituted at one or more positions with:

alkyl, alkoxy, aryl, aryloxy, arylalkyl, arylalkyloxy, cyano, halogen, nitro, oxo, thiono, or CH n X m (where X is halogen, m is 1 to 3, and n is 3-m);

S(O)R, or S(O) 2 R, (wherein R is selected from the group consisting of hydroxy, alkyl, alkoxy, aryl, aryloxy, arylalkyl, and arylalkyloxy);

C(O)R, NHC(O)R, or (CH 2 ) n C(O)OR, (wherein R is selected from the group consisting of hydrogen, hydroxy, alkyl, alkoxy, aryl, aryloxy, arylalkyl, and arylalkyloxy, and n is 0-11);

S(O) 2 OR, OR, SR, B(OR) 2 , PR 3 , P(O)(OR) 2 , OP(O)(OR) 2 , or ═NOR, (wherein R is selected from the group consisting of hydrogen, alkyl, aryl, and arylalkyl); or

NRR′, NRS(O) 2 R′, SO 2 NRR′, or CONRR′, (wherein R is selected from the group consisting of hydrogen, alkyl, aryl, and arylalkyl, and R′ is selected from the group consisting of hydrogen, hydroxy, alkyl, alkoxy, aryl, aryloxy, arylalkyl, and arylalkyloxy) and

(i) where A is an alkyl, alkenyl or alkynyl group, B is an arylalkyl, heteroarylalkyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl group;

(ii) where B is an alkyl, alkenyl or alkynyl group, A is an arylalkyl, heteroarylalkyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl group;

and wherein:

the dotted line bonds of the central ring indicate the possibility of a double bond or a delocalised aromatic bond;

C is CR 1 , nitrogen, oxygen, or sulfur;

D is CR 2 , nitrogen, oxygen, or sulfur;

E is CR 3 , nitrogen, oxygen, or sulfur;

F is CR 4 , nitrogen, oxygen, sulfur, or nothing;

provided that at least one of C, D, E, or F is CR; and R 1 , R 2 , R 3 , R 4 are each independently selected from:

hydrogen, alkyl, alkenyl, alkynyl, alkoxy, aryl, aryloxy, arylalkyl, arylalkyloxy, cycloalkyl, cyano, halogen, heteroaryl, nitro, or CH n X m (where X is halogen, m is 1 to 3, and n is 3-m);

S(O)R, or S(O) 2 R, (wherein R is selected from the group consisting of hydroxy, alkyl, alkoxy, aryl, aryloxy, arylalkyl, and arylalkyloxy);

C(O)R, NHC(O)R, or (CH 2 ) n C(O)OR, (wherein R is selected from the group consisting of hydrogen, hydroxy, alkyl, alkoxy, aryl, aryloxy, arylalkyl, and arylalkyloxy, and n is 0-11);

S(O) 2 OR, OR, SR, B(OR) 2 , PR 3 , P(O) (OR) 2 , OP(O) (OR) 2 , or —NOR, (wherein R is selected from the group consisting of hydrogen, alkyl, aryl, and arylalkyl);

NRR′, NRS(O) 2 R′, SO 2 NRR′, or CONRR′, (wherein R is selected from the group consisting of hydrogen, alkyl, aryl, and arylalkyl, and R′ is selected from the group consisting of hydrogen, hydroxy, alkyl, alkoxy, aryl, aryloxy, arylalkyl, and arylalkyloxy);

or one of R 1 and R 2 , or R 2 and R 3 , or R 3 and R 4 are taken together with the carbon atoms to which they are attached to form a carbocycle or heterocycle;

and wherein:

X and Y are linker groups each selected independently from the group consisting of: SO 2 NR, NRSO 2 , C(O)NR, NRC(O), C(S)NR, NRC(S), NRC(O)O, NRC(S)S, C(O)O, OC(O), S(O) 2 O, OSO 2 , SO 2 , OS(O), OSO 2 NR, NRS(O) 2 NR′, C(S)SSNR, NRSSC(S), P(O) (OR)NR′, NRP(O) (OR′), NRP(O)(OR′)O, CR═CR′, NRC(O)NR′, NR, C═NO—, —ON═C, C═N, N═C, N═N (→O)—, N (→O)=N, N═N, and a direct bond; where R and R 1 are each selected independently from the group consisting of hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, aryl, arylalkyl, acyl, alkoxyacyl, aryloxyacyl, or aminoacyl; and

(i) where X is NRSO 2 , Y is not NRC(O), NRC(S), NR, NRC(O)O or NRC(O)NR;

(ii) where Y is NRSO 2 , X is not NRC(O), NRC(S), NR, NRC(O)O or NRC(O)NR;

(iii) where X is a direct bond, Y not a direct bond; and

(iv) where Y is a direct bond, X is not a direct bond.

2 . A compound of Formula I as defined in claim 1 , wherein X is SO 2 NR 5 , Y is CONR 6 , and R 5 and R 6 are each independently selected from the group consisting of H, alkyl, and aryl.

3 . A compound of Formula I as defined in claim 1 , wherein X is SO 2 NR 5 , Y is NR 6 CO, and R 5 and R 6 are as defined in claim 2 .

4 . A compound of Formula I as defined in claim 1 , wherein X is NR 5 SO 2 , Y is CONR 6 , and R 5 and R 6 are as defined in claim 2 .

5 . A compound of Formula I as defined in claim 1 , wherein X is SO 2 NR 5 , Y is SO 2 NR 6 , and R 5 and R 6 are as defined in claim 2 .

6 . A compound of Formula I as defined in claim 1 , wherein X is SO 2 NR 5 , Y is NR 6 SO 2 , and R 5 and R 6 are as defined in claim 2 .

7 . A compound of Formula I as defined in claim 1 , wherein X is CONR 5 , Y is CONR 6 , and R 5 and R 6 are as defined in claim 2 .

8 . A compound of Formula I as defined in claim 1 , wherein X is CONR 5 , Y is NR 6 CO, and R 5 and R 6 are as defined in claim 2 .

9 . A compound of Formula I as defined in claim 1 , wherein X is NR 5 SO 2 , Y is NR 6 SO 2 , and R 5 and R 6 are as defined in claim 2 .

10 . A compound of Formula I as defined in claim 1 , wherein X is NR 5 CO, Y is NR 6 CO, and R 5 and R 6 are as defined in claim 2 .

11 . A compound of Formula I as defined in claim 1 , wherein X is NR 5 CONR 6 , Y is NR 7 CONR 8 , R 5 and R 6 are as defined in claim 2 , and wherein R 7 and R 8 are each independently selected from the group consisting of H, alkyl, and aryl.

12 . A compound of Formula I as defined in claim 1 , wherein X is SO 2 NR 5 , Y is NR 6 CS, and R 5 and R 6 are as defined in claim 2 .

13 . A compound of Formula I as defined in claim 1 , wherein X is SO 2 NR 5 , Y is NR 6 CO 2 , and R 5 and R 6 are as defined in claim 2 .

14 . A compound of Formula I as defined in claim 1 , wherein X is SO 2 NR 5 , Y is NR 6, and R 5 and R 6 as defined in claim 2 .

15 . A compound of Formula I as defined in claim 1 , wherein X is SO 2 NR 5 , Y is NR 6 P(O)R 7 , R 5 and R 6 are as defined in claim 2 , and wherein R 7 is selected from the group consisting of H, alkyl, aryl, alkoxy, and aryloxy.

16 . A compound of Formula I as defined in claim 1 , wherein X is SO 2 NR 5 , Y is N═CH, and R 5 is as defined in claim 2 .

17 . A compound of Formula I as defined in claim 1 , wherein X is SO 2 O, Y is CONR 5 , and R 5 is as defined in claim 2 .

18 . A compound of Formula I as defined in claim 1 , wherein X is SO 2 O, Y is NR 5 CO, and R 5 is as defined in claim 2 .

19 . A compound of Formula I as defined in claim 1 , wherein X is OSO 2 , Y is CONR 5 , and R 5 is as defined in claim 2 .

20 . A compound of Formula I as defined in claim 1 , wherein X is SO 2 O, Y is SO 2 O.

21 . A compound of Formula I as defined in claim 1 , wherein X is SO 2 O, Y is OSO 2 .

22 . The compound of Formula I as defined in claim 1 , wherein A and B are each selected independently from the group consisting of pyrrolidine, piperidine, piperazine, morphonline, thiophene, pyrrole, pyrazole, imidazole, 1,2,3-triazole, 1,2,4-triazole, oxazole, isoxazole, thiazole, isothiazole, furan, 1,2,3-oxadiazole, 1,2,4-oxadiazole, 1,2,5-oxadiazole, 1,3,4-oxadiazole, 1,2,3,4-oxatriazole, 1,2,3,5-oxatriazole, 1,2,3-thiadiazole, 1,2,4-thiadiazole, 1,2,5-thiadiazole, 1,3,4-thiadiazole, 1,2,3,4-thiatriazole, 1,2,3,5-thiatriazole, tetrazole, benzene, pyridine, pyridazine, pyrimidine, pyrazine, triazine, indene, naphthalene, indole, isoindole, indolizine, benzofuran, benzothiophene, indazole, benzimidazole, benzthiazole, purine, quinolizine, quinoline, isoquinoline, cinnoline, phthalazine, quinazoline, quinoxaline, naphthyridine, pteridine, fluorene, carbazole, carboline, acridine, phenazine, and anthracene, optionally substituted at one or more positions with alkyl, alkoxy, aryl, aryloxy, alkaryl, alkaryloxy, halogen, trihalomethyl, oxo, ═S, S(O)R, SO 2 NRR′, S(O) 2 OR, SR, B(OR) 2 , PR 3 , P(O)(OR) 2 , OP(O)(OR) 2 , NO 2 , NRR′, N(O)R, OR, CN, C(O)R, NHC(O)R, (CH 2 ) n CO 2 R, and CONRR′, wherein R and R′ are each independently selected from the group consisting of H, alkyl, alkoxy, aryl, aryloxy, arylalkyl, and arylalkyoxy; and n is 0-11.

23 . The compound of Formula I as defined in claim 1 , wherein the compound is selected from N-(2,6,-Diisopropylphenyl)-2-(2,6-diisopropylphenylsulfamoyl)-benzamide, N-phenyl-2-phenylsulfamoylbenzamide, N-[2-(4-methoxyphenylsulfamoyl)-phenyl]-isonicotinamide, N-[2-(4-methoxyphenylsulfamoyl)-phenyl]-4-nitro-benzamide, N-[2-(4-methoxyphenylsulfamoyl)-phenyl]-4-fluorobenzamide, N,N′-bis-(2,6-diisopropyl-phenyl)-phthalamide, 1-m-tolyl-3-[4-(3-m-tolyl-ureido)-pyridin-3-yl]-urea, 2-(4-methoxybenzenesulfonylamino)-N-pyridin-4-yl-benzamide, 2-(4-methoxy-benzamido)-N-pyridin-4-ylbenzamide, [2-(4-methoxyphenyl-sulfamoyl)-phenyl]-carbamic acid tert-butyl ester, benzene-1,2-disulfonic acid 1-[(4-methoxyphenyl)-amide] 2-pyridin-4-yl amide, benzene-1,2-disulfonic acid bis-[(4-methoxyphenyl)-amide], thiophene-2-sulfonic acid [2-(4-methoxyphenyl-sulfamoyl)-phenyl]-amide, 1,2-bis (2,4,6-triisopropyl-N-phenyl)-benzenesulfonamide, 2-[benzyl-(4-methoxyphenyl)-sulfamoyl]-N-pyridin-4-yl-benzamide, 2-(4-methoxyphenyl)-sulfamoyl]-N-pyridin-4-yl-benzamide, 4-fluoro-N-[2-(3,4,5-trimethoxybenzenesulfonylamino)-phenyl]-benzamide, 1H-pyrrole-2-carboxylic acid [2-(3,4,5-trimethoxybenzenesulfonyl-amino)-phenyl]-benzamide, and N-[2-(3,4,5-trimethoxybenzenesulfonylamino)-phenyl]-isonicotinamide.

24 . A compound according to claim 2 , wherein the compound is N-2,6,-diisopropylphenyl)-2-(2,6-diisopropylphenylsulfamoyl)-benzamide.

25 . A compound according to claim 2 , wherein the compound is 2-(4-methoxyphenyl)-sulfamoyl]-N-pyridin-4-yl-benzamide.

26 . A compound according to claim 6 , wherein the compound is thiophene-2-sulfonic acid [2-(4-methoxyphenylsulfamoyl)-phenyl]-amide.

27 . A compound according to claim 3 , wherein the compound is N-[2-(4-methoxyphenylsulfamoyl)-phenyl]-isonicotinamide.

28 . A pharmaceutical composition comprising therapeutically effective amount of a compound according to any one of claims 1 to 27 , or a pharmaceutical acceptable salt thereof, together with a pharmaceutically acceptable carrier or excipient.

29 . A method for preventive and/or therapeutic treatment of a disease or disorder arising from abnormal or inappropriate cell proliferation, comprising administration to a subject in need thereof of a therapeutically effective amount of a compound according to any one of claims 1 to 27 , or a pharmaceutically acceptable salt thereof.

30 . The method of claim 29 , wherein said treatment is treatment of a neoplastic disease or neoplastic dependent disorder, including tumour growth, tumour metastasis and associated angiogenesis.

31 . The method of claim 29 or claim 30 , wherein said administration is in conjunction with another preventative or therapeutic treatment of a disease or disorder arising from abnormal or inappropriate cell proliferation, including angiogenesis.

32 . The method of any one of claims 29 to 31 , wherein said subject is a human.

33 . Use of a compound according to any one of claims 1 to 27 , or a pharmaceutically acceptable salt thereof, in the manufacture of a composition for preventative and/or therapeutic treatment of a disease or disorder arising from abnormal or inappropriate cell proliferation.