| 摘要 |
Compounds of formula (I) wherein n is 0, 1, or 2; A is N or N+-O-; X is O, S,-NH-, and-N-alkyl-; Ar1 is a 6-membered aromatic ring; and Ar2 is a fused bicycloheterocycle. The compounds are useful in treating conditions or disorders prevented by or ameliorated by a7 nAChR ligands. Also disclosed are pharmaceutical compositions having compounds of formula (I) and methods for using such compounds and compositions.
|
