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J Med Chem. 1994 Jan 7;37(1):105-12.

Synthesis and structure activity relationships of cis- and trans-2,3,4,4a,9,9a-hexahydro-1H-indeno[2,1-c]pyridines for 5-HT receptor subtypes.

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1
Abbott Laboratories, Abbott Park, Illinois 60064.

Abstract

A series of cis- and trans-fused hexahydroindeno[2,1-c]pyridines have been prepared and evaluated for affinity and selectivity at the 5-HT1A subtype of the serotonin receptor. Using molecular modeling studies we predicted that the 5-methoxy-trans-fused members of this class would exhibit affinity for this site. In agreement with these predictions, trans-5-methoxy-N-propyl-2,3,4,4a,9,-9a-hexahydro-1H-indeno[2,1-c]pyridi ne (6a) demonstrated moderate affinity and high selectivity for the 5-HT1A binding site, whereas the cis-fused isomer 5a demonstrated virtually no affinity at this site. Additional trans-fused analogs from this series, where the nitrogen was substituted with a variety of alkylene imide containing appendages, demonstrated high (0.60-51 nM) affinity and excellent selectivity for the 5-HT1A site. Certain of these analogs, independent of ring-fusion stereochemistry, also demonstrated high affinity for the 5-HT2 binding site.

PMID:
8289183
DOI:
10.1021/jm00027a013
[Indexed for MEDLINE]

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