Patent ID: 8716528

Claim:
A compound of Formula (I): A-O-L 1 -NR-L 2 -B wherein A is an optionally substituted cyclopentadi-2,4-en-l-yl or phenyl group, an optionally substituted 5-6-membered monocyclic heteroaryl group, an optionally substituted napthyl group or an optionally substituted 9-10-membered bicyclic heteroaryl group; L 1 is a C 1-4 alkylene group, a C 2-4 alkenylene group or a C 2 -C 4 alkynylene group, each of which may be optionally substituted by C 1-6 alkyl; L 2 is a C 1-4 alkylene group, a C 2-4 alkenylene group or a C 2 -C 4 alkynylene group, each of which may be optionally substituted by C 1-6 alkyl, or L 2 is a CO 2 group; R is hydrogen or a C 1-6 alkyl group; and B is a group of formula (a) below: wherein R 1 and R 2 are independently selected from hydrogen, C 1-6 alkyl and C 3-6 cycloalkyl provided that at least one of R 1 and R 2 is C 1-6 alkyl or C 3-6 cycloalkyl; or a pharmaceutically acceptable salt or solvate thereof.