Aromatic ring functionalization of benzolactam derivatives: New potent dopamine D3 receptor ligands
摘要:
Since the discovery of the dopamine D-3 receptor, an intensive effort has been directed toward the development of potent and selective ligands in order to elucidate the function and potential therapeutic advantages of targeting D-3 receptors. As a part of our efforts, a novel series of substituted benzolactams derivatives was synthesized mostly through palladium-catalyzed reactions. Their affinities on D-1-D-4 receptors were evaluated and the data led us to highly potent D-3 ligands, some of them highly selective for D-3 receptor, compared to the related dopamine receptor subtypes. Functional D-3 activity assays of the most relevant compounds have been carried out revealing antagonist as well as partial agonist activity. (C) 2010 Elsevier Ltd. All rights reserved.
at the ether oxygen, the least basic heteroatom, is essential to promote CO bond cleavage. However, the carbonyl oxygen of carbamates, the most basic site, is protonated exclusively in strong acids. We found that the protonation site can be shifted to an alternative basic atom by linking methyl salicylate to the ether oxygen of carbamate. The methyl ester oxygen ortho to the phenolic (ether) oxygen
我们发现,phenethylcarbamates而承受邻-salicylate作为醚基(氨基甲酰基水杨酸盐)显着加速ö C键的离解在强酸,以促进异氰酸酯生成阳离子(N-质子化的异氰酸酯),其经历随后的分子内的芳族亲电环化反应,得到dihydroisoquinolones的。为了产生从在酸性介质如亲电子芳族取代氨基甲酸酯的异氰酸酯的阳离子,质子化的醚氧,该至少基本杂原子,是必不可少的,以促进Ç O键裂解。但是,氨基甲酸酯的羰基氧(最基本的位点)仅在强酸中被质子化。我们发现,通过将水杨酸甲酯连接到氨基甲酸酯的醚氧上,质子化位点可以转移到另一个碱性原子上。水杨酸酯的酚(醚)氧邻位的甲酯氧与氨基甲酸酯羰基氧一样碱性,我们发现强酸中甲酯氧的单质子化导致分子内阳离子氢键的形成(>C Ò + H⋅⋅⋅O<)与酚醛醚氧。这有助于O苯乙基氨基甲酸酯的C键解离,从而促进异氰酸酯阳离子的形成。相反
BICYCLIC MGLUR5 POSITIVE ALLOSTERIC MODULATORS AND METHODS OF MAKING AND USING SAME
申请人:Conn P. Jeffrey
公开号:US20090270362A1
公开(公告)日:2009-10-29
In one aspect, the invention relates to bicyclic MGluR5 positive allosteric modulators, for example 6-(phenylethynyl)-3,4-dihydroisoquinolin-1(2H)-one, derivatives thereof, and related compounds, which are useful as positive allosteric modulators of the metabotropic glutamate receptor subtype 5 (mGluR5); synthetic methods for making the compounds; pharmaceutical compositions comprising the compounds; and methods of treating neurological and psychiatric disorders associated with glutamate dysfunction using the compounds and compositions. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
Reverse Regioselective Cp*Co(III)-Catalyzed [4 + 2] C–H Annulation of <i>N</i>-Chloroamides with Vinylsilanes: Synthesis of 4-Silylated Isoquinolones and Their Synthetic Utilities
作者:Arijit Ghosh、Tamanna Rana、Nilanjan Bhaduri、Amit B. Pawar
DOI:10.1021/acs.orglett.3c03115
日期:2023.11.3
have developed a Cp*Co(III)-catalyzed reverse regioselective [4 + 2] annulation of N-chlorobenzamides/acrylamides with vinylsilanes for the synthesis of 4-silylated isoquinolones. The reaction was performed at ambient temperature under redox-neutral conditions. The reaction utilized the N–Cl bond as an internal oxidant, furnished the required products with excellent regioselectivities, and demonstrated
[EN] BENZAMIDE MGLUR5 POSITIVE ALLOSTERIC MODULATORS AND METHODS OF MAKING AND USING SAME<br/>[FR] DÉRIVÉS BENZAMIDES MODULATEURS ALLOSTÉRIQUES POSITIFS RÉCEPTEURS MÉTABOTROPIQUES DU GLUTAMATE 5 (MGLUR5) ET LEURS PROCÉDÉS DE FABRICATION ET D'UTILISATION
申请人:UNIV VANDERBILT
公开号:WO2008151184A1
公开(公告)日:2008-12-11
[EN] In one aspect, the invention relates to compounds, including benzamide derivatives and cyclic benzamide derivatives, which are useful as positive allosteric modulators of the metabotropic glutamate receptor subtype 5 (mGluR5); synthetic methods for making the compounds; pharmaceutical compositions comprising the compounds; and methods of treating neurological and psychiatric disorders associated with glutamate dysfunction using the compounds and compositions. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention. [FR] Selon un aspect, la présente invention concerne des composés, comprenant des dérivés benzamides et des dérivés benzamides cycliques, qui sont utiles en tant que modulateurs positifs allostériques du récepteur de sous-type 5 du glutamate (mGluR5); des procédés synthétiques pour la fabrication des composés; des compositions pharmaceutiques comportant les composés; et des procédés de traitement de troubles neurologiques et psychiatriques associés au dysfonctionnement glutamatergique mettant en uvre les composés et les compositions. Cet abrégé est soumis afin de permettre une recherche générale dans ce domaine précis et ne doit pas être utilisé pour limiter la portée de la présente invention.