Metabotropic glutamate receptor antagonists and their use for treating central nervous system diseases
申请人:NPS Pharmaceuticals, Inc.
公开号:US06429207B1
公开(公告)日:2002-08-06
The present invention provides compounds, and pharmaceutical compositions containing those compounds, that are active at metabotropic glutamate receptors. The compounds are useful for treating neurological diseases and disorders. Methods of preparing the compounds also are disclosed.
Diastereoselective construction of carbo-bridged polyheterocycles by a three-component tandem annulation reaction
作者:Maorui Wang、Min Zhang
DOI:10.1039/d3ob01013a
日期:——
hydroamination-induced tandem annulation process, we herein report a new three-component reaction for room temperature construction of carbo-bridged polyheterocycles with exclusive diastereoselectivity, which features readily available feedstocks, catalyst-free conditions, good substrate and functionality compatibility, no need for transitionmetal catalysts, and high step and atom efficiency. The products
Regioselective halogenation of six-membered N-heteroarenes is crucial for precise functional derivatization. We present a meta-selective halogenation method for pyridines, quinolines, and isoquinolines via electrophilic halogen radical addition utilizing an N-benzyl activation strategy. This method achieves C3- and C5-dihalogenation in pyridines, C3- and C6-dihalogenation in quinolines, and C3-monohalogenation