Patent ID: 7153857

Claim:
A compound of the formula I or a pharmaceutically acceptable salt or an in vivo hydrolysable ester thereof, wherein B is selected from H, C 1-6 alkyl, up to C12 cycloalkyl, up to C12 aryl, and up to C12 heteroaryl; wherein B is optionally substituted by up to three groups independently selected from OH, NO 2 , CF 3 , CN, halogen, SC 1-4 alkyl, SOC 1-4 alkyl, SO 2 C 1-4 alkyl, C 1-4 alkyl, and C 1-4 alkoxy; L 1 and L 2 are each independently selected from a direct bond and C 1-6 alkyl; M 1 , M 2 , M 3 , M 4 and M 5 are each independently selected from N and C; R1 is the group —X—Y; X is C 1-6 alkyl; and Y is selected from up to C10 cycloalkyl, up to C10 aryl, and up to C10 heteroaryl; wherein Y is optionally substituted by up to three groups independently selected from OH, NO 2 , CF 3 , CN, halogen, SC 1-4 alkyl, SOC 1-4 alkyl, SO 2 C 1-4 alkyl, C 1-4 alkyl, and C 1-4 alkoxy.