Optimized palladium-based approaches to analogues of PK 11195
作者:Sandrine Guillou、Yves L. Janin
DOI:10.1002/jhet.5570450520
日期:2008.9
such as PK11195 and Ro 5-4864 were found more than twenty years ago in the course of research on neurobiology. These ligands were instrumental in pointing out an involvement of the peripheral-type benzodiazepine receptor (PBR) in apoptosis processes. With in mind an improvement of the solubility of PK11195 in biological media, we report here improved reaction conditions for the palladium-based arylation
A novel approach for the synthesis of the peripheral benzodiazepine receptor ligand, PK11195
作者:Louise Stevenson、Sally L. Pimlott、Andrew Sutherland
DOI:10.1016/j.tetlet.2007.07.203
日期:2007.10
A new synthesis of the peripheral benzodiazepine receptor ligand, PK11195 has been developed in only six-steps using a Heck-type reaction and a Suzuki coupling to effect the key transformations. The flexibility of this new approach is demonstrated by the synthesis of an iodo-analogue of PK11195 prepared from the corresponding bromide using a copper catalysed aromatic Finkelstein reaction. (c) 2007 Elsevier Ltd. All rights reserved.