tokens: NRA0160 , 5 - [ 2 - ( 4 - ( 3 - fluorobenzylidene ) piperidin - 1 - yl ) ethyl ] - 4 - ( 4 - fluorophenyl ) thiazole - 2 - carboxamide , has a high affinity for human cloned dopamine D4 . 2 , D4 . 4 and D4 . 7 receptors , with Ki values of 0 . 5 , 0 . 9 and 2 . 7 nM , respectively .