New ligands for the ORL-1 receptor are described, useful for antagonising the activity of said receptors in a patient in need thereof, and for preventing and treating illnesses dependent on the activation of this receptor. The new compounds conform to structural formula (I) wherein R1, R2, R3, R4 are further defined in the description.
A novel and unusual method for C–N bond formation in 1-substituted-pyrrolidin-2-ones
作者:Neelima Sinha、Sanjay Jain、Nitya Anand
DOI:10.1016/j.tetlet.2004.10.162
日期:2005.1
A novel 5-C-N bond forming reaction is reported, which involves heating 1-substituted-pyrrolidin-2-ones with cyclic amines in the presence of a base. This reaction provides a convenient method for the synthesis of 1,5-disubstituted-pyrrolidin-2-ones. (C) 2004 Elsevier Ltd. All rights reserved.