| 摘要 |
Described herein are tryptamine analogs that display high binding affinity and selectivity for the 5-HT1D beta receptor, of the formula: <IMAGE> (I) wherein R1 is a group selected from aryl-C1-7alkyl; aryl-C2-7alkoxy; aryl-C2-7alkanoyl and aryl-C1-7alkanoyloxy, wherein said alkyl, alkoxy, alkanoyl and alkanoyloxy groups are optionally substituted by a C1-4 alkyl substituent and wherein said aryl group is optionally substituted by one or more substituent selected from hydroxyl, halogen, mercapto, linear or branched C1-4alkyl, linear or branched C1-4alkoxy, linear or branched C1-4alkylthio, thiol substituted C1-4alkyl and nitro substituted C1-4alkyl; R2 and R3 are selected independently from H and C1-4alkyl; and R4 is selected from H, C1-4 alkyl, aryl and arylC1-4alkyl. The compounds are useful as reagents for receptor identification and in receptor-based drug screening programs, and can also be used therapeutically to treat conditions for which administration of a 5-HT1D ligand is indicated, for example in the treatment of migraine.
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