Method for the Identification of New Leads for Drug Candidates
申请人:Ernst Beat
公开号:US20090239760A1
公开(公告)日:2009-09-24
Disclosed is a method for producing new leads for drug candidates. The method employs a combinatorial approach for identifying high affinity ligands. The target may be unknown and/or may include one or more unknown binding sites. A method involving a combined screening and synthesis method for bi-site inhibitors is disclosed comprising: 1) determining if there is sufficient proximity between ligands binding to different sites of a target: e.g. by using spin-labelled ligands quenching can be measured with NMR if a first ligand and second allosteric ligand are in proximity 2) connecting both ligands having linkers, via in situ synthesis in the presence of the protein scaffold (e.g. target guided synthesis combined with fragment based self assembly). Click chemistry is a preferred embodiment here. Also disclosed are kits used in context of this method, leads discovered by the method and their use in drug development. Leads for drugs acting on myelin associated glycoprotein (MAG) have been identified and synthesised.
A Fragment-Based In Situ Combinatorial Approach To Identify High-Affinity Ligands for Unknown Binding Sites
作者:Sachin V. Shelke、Brian Cutting、Xiaohua Jiang、Hendrik Koliwer-Brandl、Daniel S. Strasser、Oliver Schwardt、Soerge Kelm、Beat Ernst
DOI:10.1002/anie.200907254
日期:——
the lead: The title method for the identification of ligands is particularly useful for bindingsites where little or no structural information is available. In a fragment‐based approach, a suitable pair of first‐ and second‐siteligands is identified by NMR experiments. By applying a receptor‐mediated in situcombinatorialapproach, the two ligands are then linked to generate a new high‐affinity lead