| abstract |
Compounds of formula I n n n n n n n n n n wherein X is n n n n n n n n n n or Y;n nand wherein A, Y, R 1 , R 2 , R 3 , R 4 and R 5 are as defined in the specification as a base or a pharmaceutically acceptable salt, solvate or solvate of salt thereof, processes for their preparation, new intermediates used therein, pharmaceutical formulations containing said compounds and to the use of said compounds in therapy. |