Patent ID: 7638629

Claim:
A compound of formula II or formula III: or a pharmaceutically acceptable salt thereof wherein p is 0 or 1; X represents a bond or C(R 1 ) 2 or CH 2 C(R 1 ) 2 ; Y represents a bond or CH 2 or CH 2 CH 2 ; m is 0 or 1; R 7 is H or a hydrocarbon group of up to 10 carbon atoms, and A′ represents a 3- to 12-membered carbocyclic ring system optionally having one or more acyclic hydrocarbon groups attached thereto, such that the total number of carbon atoms in the moiety A′—(CHR 7 )m- is in the range of 5 to 25; A′ and R 7 optionally and independently bearing one or more additional substituents, up to a maximum of 5 in combined total, selected from halogen, CN, N 3 , NO 2 , C 1-4 perfluoroalkyl, OR 6 , SR 6 , OH, CO 2 R 6 , OCOR 6 and COR 6 ; each R 1 independently represents H or a non-aromatic hydrocarbon group of up to 6 carbon atoms; or the two R 1 groups complete a C 3-6 alicyclic group; R 2 represents a non-aromatic hydrocarbon group of up to 6 carbon atoms; each R 5 independently represents halogen, CN, NO 2 , R 6 , OR 6 , CO 2 R 6 , OCOR 6 or COR 6 ; and R 6 represents a hydrocarbon group of up to 7 carbon atoms which is optionally substituted with up to 3 halogen atoms.