| 摘要 |
<p>Compounds of formula (I) where P is a 5- to 7-membered carbocyclic or heterocyclic ring containing one to four heteroatoms selected from oxygen, nitrogen or sulphur, R4 is O, S, CH¿2?, C=O, NR?5¿CO or NR5, D is nitrogen or carbon, E is O, CR?18R19, NR20¿ with 5HT1B receptor antagonist activity.</p> |
