Patent ID: 7977344

Claim:
A compound of formula (I): wherein; R 1 is C 1-8 alkylamino, C 1-8 alkoxy, C 3-7 cycloalkylC 1-6 alkylamino, C 3-7 cycloalkylC 1-6 alkoxy, C 1-3 alkoxyC 2-3 alkoxy, or Het b -C 1-3 alkoxy; Het b is a 5- or 6-membered saturated aliphatic heterocyle containing one oxygen atom; R 2 is —(CH 2 ) n -Het; n is an integer having a value of 1 to 4; Het is a 5- or 6-membered saturated aliphatic heterocycle containing one oxygen heteroatom, which heterocycle may be substituted by one or two C 1-4 alkyl groups; or salts or solvates thereof.