| abstract |
A compound of Formula (I): ** (See formula) ** or a pharmaceutically acceptable salt thereof, wherein: Q is pyridazin-3-yl or 6-fluoropyridazin-3-yl; R1 is H; R2 and R3 are each independently C1-C6 alkyl, or R2 and R3 taken together are - (CH2) 3-; or R1 and R2 taken together are - (CH2) 2- and R3 is -CH3; R4 is halo, -CH3, -OCH3, -OCHF2, -OCF3 or -CN; and n is 0, 1, or 2. |