| abstract |
Compound of formula Ib: ** Formula ** in which: A is C1-2 fluoroalkyl; R3 is ** Formula ** or W is phenyl substituted with -C (O) NR7R8; R7 is hydrogen; R8 is selected from methyl, ethyl, propyl or butyl (substituted with one or two groups selected from hydroxyl, phenyl and pyridinyl), cyclopentyl, hydroxycyclopentyl, and oxidotetrahydrothiophenyl, dioxidotetrahydrothiophenyl, tetrahydrofuranyl or oxotetrahydrofuranyl; or a pharmaceutically acceptable salt thereof. |