abstract |
A compound of formula IId: ** Formula ** or a pharmaceutically acceptable salt thereof; wherein both R2 groups, together with the atoms to which they are attached, form a group selected from: ** Formula ** wherein R'3 is independently selected from one of the following: -H, -CH3, -CH2CH3, -C (O) CH3, -CH2CH2OH, -C (O) OCH3, ** Formula ** and where each R3 is independently selected from -H, -CH3, -CH2OH, -CH2CH3, -CH2CH2OH, -CH2CH2CH3, - NH2, halo, -OCH3, -CN, -CF3, -C (O) OCH2CH3, -S (O) 2CH3, -CH2NH2, -C (O) NH2, ** Formula ** |