| abstract |
There is provided a compound of Formula I or a pharmaceutically acceptable salt thereof.n n n Formula In n n n n n n n In the formula (I)n n n X, Y, Z and W are each independently a methine group or a nitrogen atom, provided that X, Y, Z and W do not all become methine groups at the same time,n n n A is -O- and the like,n n n B is -C (O)-and the like,n n n D is-(CH 2 ) m 2- , -O- and the like,n n n m2 is 0 or 1,n n n Q is a methine group or a nitrogen atom,n n n R is a group of formula (II-1).n n n (II-1)n n n n n n n n In Chemical Formula II-1,n n n R 6 , R 7 and R 8 are each independently a lower alkyl group or the like.n n n Aza substituted spiro derivatives, neurotransmitters, histamine receptors, antagonists, inverse agonists |