Conformationally constrained N1-arylsulfonyltryptamine derivatives as 5-HT6 receptor antagonists
摘要:
Several series of conformationally constrained N-1-arylsulfonyltryptamine derivatives were prepared and tested for 5-HT6 receptor binding affinity and ability to modulate cAMP production in a cyclase assay. The 3-piperidin-3-yl-, 3-(1-methylpyrrolidin-2-ylmethyl)-, and 3-pyrrolidin-3-yl-1H-indole arrays (8-13) appear to be able to adopt a conformation that allows high affinity 5-HT6 receptor binding, while the beta-carboline array 14 binds with a significantly weaker (10- to 100-fold) affinity. N-1-Benzenesulfonyl-3-piperidin-3-yl-1H-indole 9a is a high affinity full agonist with EC50 = 24 nM. Several of the N-1-arylsulfonyl-3-(1-methylpyrrolidin-2-ylmethyl)-1H-indole derivatives behave as very potent antagonists ((S)- 11r, (S)- 11t; IC50 = 0.8, 1.0 nM). (c) 2005 Elsevier Ltd. All rights reserved.
trichloride under mild reaction conditions. The method is simple, efficient, and practical. A highlyefficient synthetic strategy for Michaeladdition of indoles and pyrroles to maleimides has been developed using the Lewis acids zinc chloride or aluminum trichloride as the catalyst. The reactions generated 3-substituted indoles and 2-substituted pyrroles in high yields with excellent regioselectivity in the
Novel 3,3-disubstituted pyrrolidines as selective triple serotonin/norepinephrine/dopamine reuptake inhibitors
作者:Linda M. Bannwart、David S. Carter、Hai-Ying Cai、Jason C. Choy、Robert Greenhouse、Saul Jaime-Figueroa、Pravin S. Iyer、Clara J. Lin、Eun Kyung Lee、Matthew C. Lucas、Stephen M. Lynch、Ann Marie Madera、Amy Moore、Kerem Ozboya、Lubica Raptova、Ralf Roetz、Ryan C. Schoenfeld、Karin Ann Stein、Sandra Steiner、Marzia Villa、Robert J. Weikert、Yansheng Zhai
DOI:10.1016/j.bmcl.2008.10.025
日期:2008.12
A series of 3,3-disubstituted pyrrolidine monoamine triple reuptake inhibitors were discovered. Analogues with low nanomolar potency, good human in vitro microsomal stability and in vitro permeability, and low drug-drug interaction potential are described. One example showed in vivo anti-depressant-like effects in the mouse tail suspension assay with a minimum effective dose of 30 mg/kg ip. (C) 2008 Elsevier Ltd. All rights reserved.