摘要 |
<p>A compound of the formula (I) or a salt, prodrug or solvate thereof, wherein R1 and R2 groups are all hydrogen; A is a benzofuzed azahetero ring; W1-W2 is CH2-CH2; X1-X1 is CH2-CH2; and Z is methylene or carbonyl; or the like, is a ligand for ORL1-receptor and are useful for treating or preventing pain, a CNS disorder or the like in mammalian subjects.</p> |