| abstract |
A compound of Formula: ** Formula ** wherein A is: ** Formula ** Z is O or S; R1 is H, F, Cl, CN, OCH3, OCH2CH2OCH3, ** Formula ** R2 is H, F, Cl, or CH3; R3 is H, F, Cl, CH3, CF3, C1-C3 alkoxy, OCH2CH2OCH3, ** Formula ** and R4 is H, F, Cl, or OCH3; or a pharmaceutically acceptable salt thereof. |