[EN] PROCESS FOR THE PREPARATION OF AN OREXIN RECEPTOR ANTAGONIST<br/>[FR] PROCÉDÉ DE PRÉPARATION D'UN ANTAGONISTE DU RÉCEPTEUR DE L'OREXINE
申请人:MERCK SHARP & DOHME
公开号:WO2012058129A1
公开(公告)日:2012-05-03
The present invention is directed to processes for preparing a pyridyl piperidine compound which is an antagonist of orexin receptors, and which is useful in the treatment or prevention of neurological and psychiatric disorders and diseases in which orexin receptors are involved.
[EN] IRON AND COBALT CATALYZED HYDROGEN ISOTOPE LABELING OF ORGANIC COMPOUNDS<br/>[FR] MARQUAGE ISOTOPIQUE D'HYDROGÈNE, CATALYSÉ PAR LE FER ET LE COBALT, DE COMPOSÉS ORGANIQUES
申请人:UNIV PRINCETON
公开号:WO2016019038A1
公开(公告)日:2016-02-04
Methods of isotopic labeling are described herein. For example, a method of isotopically labeling an organic compound, in some embodiments, comprises providing a reaction mixture including the organic compound, an iron complex or a cobalt complex and a source of deuterium or tritium. The organic compound is labeled with deuterium or tritium in the presence of the iron complex or cobalt complex or derivative of the iron complex or cobalt complex.
Ni(I)–X Complexes Bearing a Bulky α-Diimine Ligand: Synthesis, Structure, and Superior Catalytic Performance in the Hydrogen Isotope Exchange in Pharmaceuticals
作者:Cayetana Zarate、Haifeng Yang、Máté J. Bezdek、David Hesk、Paul J. Chirik
DOI:10.1021/jacs.9b00939
日期:2019.3.27
Br, I) complex as a nickel(I) derivative supported by a redox-neutral α-diimine chelate. The dimeric nickel hydride, [(ipcADI)Ni(μ2-H)]2, was prepared and characterized by X-ray diffraction; however, magnetic measurements and 1H NMR spectroscopy support monomer formation at ambient temperature in THF solution. This nickel hydride was used as a precatalyst for the hydrogen isotopeexchange (HIE) of
由庞大的 α-二亚胺螯合物 N, N'-bis(1 R,2 R,3 R,5 S) 支持的一系列 Ni-X (X = Cl, Br, I, H) 配合物的合成和光谱表征)-(-)-isopinocampheyl-2,3-butanediimine (ipcADI) 进行了描述。二亚胺负载的三配位镍 (I)-X 配合物已被提议作为许多催化转化的关键中间体,例如 CC 和 C-杂原子交叉偶联以及 CH 官能化,但迄今为止在合成方面仍然难以捉摸。结构、光谱、电化学和计算研究的组合被用来建立每个单体 [(ipcADI)NiX] (X = Cl, Br, I) 络合物的电子结构,作为由氧化还原支持的镍 (I) 衍生物。中性α-二亚胺螯合物。制备了二聚氢化镍,[(ipcADI)Ni(μ2-H)]2,并通过 X 射线衍射表征;然而,磁性测量和 1 H NMR 光谱支持在环境温度下在 THF 溶液中形成单体。这种氢化镍用作芳烃和药物中
Iron-catalysed tritiation of pharmaceuticals
作者:Renyuan Pony Yu、David Hesk、Nelo Rivera、István Pelczer、Paul J. Chirik
DOI:10.1038/nature16464
日期:2016.1.14
of C–H bonds in drugs and the relative ease and low cost associated with tritium (3H) make it an ideal radioisotope with which to conduct ADME studies early in the drug development process. Here we describe an iron-catalysed method for the direct 3H labelling of pharmaceuticals by hydrogenisotopeexchange, using tritiumgas as the source of the radioisotope. The site selectivity of the iron catalyst
Process for the Preparation of an Orexin Receptor Antagonist
申请人:Campeau Louis-Charles
公开号:US20110165632A1
公开(公告)日:2011-07-07
The present invention is directed to processes for preparing a pyridyl piperidine compound which is an antagonist of orexin receptors, and which is useful in the treatment or prevention of neurological and psychiatric disorders and diseases in which orexin receptors are involved.