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3-(4-Piperidinyl)- and 3-(8-aza-bicyclo[3.2.1]oct-3-yl)-2-phenyl-1H-indoles as bioavailable h5-HT2A antagonists
J Crawforth1, S Goodacre, R Maxey
1Merck Sharp & Dohme Research Laboratories, The Neuroscience Research Centre, Harlow, Essex, UK. james_crawforth@merck.com
Bioorganic & Medicinal Chemistry Letters
|January 2, 2001
Abstract:
A series of 3-(4-piperidinyl)- and 3-(8-aza-bicyclo[3.2.1]oct-3-yl)-2-phenyl-1H-indoles have been prepared and evaluated as ligands for the h5-HT2A receptor. 3-(8-Phenethyl-8-aza-bicyclo[3.2.1]oct-3-yl)-2-phenyl-1H-indole is a high-affinity (1.2nM), selective (>800 fold over h5-HT2C and hD2 receptors) antagonist at the h5-HT2A receptor with oral bioavailability in rats.