abstract |
A compound of the formula (I) ** Formula ** where X is CH = CH, CH2O where oxygen is linked to ring B, or OCH2 where oxygen is linked to ring A; Y is hydrogen, linear or branched C1-C6 alkyl, or a pharmaceutically acceptable inorganic cation; R1 is ethyl or cyclopropyl; and R2 and R3 are the same or different and are selected from F, Cl, Br, CF3 and OCF3. |