Patent ID: 7402598

Claim:
A compound of formula (I) or a salt thereof, wherein: n is an integer of from 2 to 8; m is an integer of from 3 to 11, with the proviso that the sum of n+m is from 5 to 19; R 1 is —XSO 2 NR 6 R 7 ; wherein X is —(CH 2 ) p - or C 2-6 alkenylene; p is an integer from 0 to 6; R 6 and R 7 are independently selected from hydrogen, C 1-6 alkyl, C 3-7 cycloalkyl, CONR 8 R 9 , phenyl and phenyl(C 1-4 alkyl)-, or R 6 and R 7 , together with the nitrogen atom to which they are bonded, form a 5-, 6- or 7- membered nitrogen containing ring; and R 6 and R 7 are each independently optionally substituted by 1 or 2 groups independently selected from halo, C 1-6 alkyl, C 1-6 alkoxy, hydroxy-substituted C 1-6 alkoxy, C 1-6 haloalkyl, CO 2 R 8 , SO 2 R 8 R 9 , —CONR 8 R 9 , —NR 8 C(O)R 9 or a 5-, 6- or 7-membered heterocyclic ring; R 8 and R 9 are independently selected from hydrogen, C 1-6 alkyl, C 3-7 cycloalkyl, phenyl and phenyl(C 1-6 alkyl)-; R 2 and R 3 are independently selected from hydrogen, C 1-6 alkyl, C 1-6 alkoxy, halo, phenyl and C 1-6 haloalkyl; R 4 and R 5 are independently selected from hydrogen and C 1-4 alkyl with the proviso that the total number of carbon atoms in R 4 and R 5 is not more than 4, and Ar is a group selected from the group consisting of: wherein R 11 represents hydrogen, halogen, —(CH 2 ) q OR 14 , —NR 14 C(O)R 15 , —NR 14 SO 2 R 15 , —SO 2 NR 14 R 15 , —NR 14 R 15 , —OC(O)R 16 or OC(O)NR 14 R 15 , and R 10 represents hydrogen, halogen or C 1-4 alkyl; or R 11 represents —NHR 17 and R 10 and —NHR 17 together form a 5- or 6-membered heterocyclic ring; R 12 represents hydrogen, halogen, —OR 14 or —NR 14 R 15 ;—OC(O)R 16 or —OC(O)NR 14 R 15 ; R 13 represents hydrogen, halogen, haloC 1-4 alkyl, —OR 14 or —NR 14 R 15 ; R 14 and R 15 each independently represents hydrogen or C 1-4 alkyl, or in the groups —NR 14 R 15 , —SO 2 NR 14 R 15 and —OC(O)NR 14 R 15 , R 14 and R 15 independently represent hydrogen or C 1-4 alkyl or together with the nitrogen atom to which they are attached form a 5-, 6- or 7-membered nitrogen-containing ring, R 16 represents an aryl group which may be unsubstituted or substituted by one or more substituents selected from halogen, C 1-4 alkyl, hydroxy, C 1-4 alkoxy or halo C 1-4 alkyl; and q is zero or an integer from 1 to 4; provided that Ar is not a group (a) wherein R 11 is (CH 2 ) q OR 14 or NR 14 COR 15 , and R 12 is OR 14 .