The present invention provides new compounds with high affinity for adenosine A2A receptors. It also provides antagonists of adenosine A2A receptors and their use as medicaments for the treatment and/or prophylaxis of diseases and disorders where the partial or total inactivation of adenosine A2A receptors signalling pathways could be beneficial such as Alzheimer's disease, Parkinson's disease, attention deficit and hyperactivity disorders (ADHD), Huntington's disease, neuroprotection, schizophrenia, anxiety and pain. The present invention further relates to pharmaceutical compositions containing such new compounds with high affinity for adenosine A2A receptors and their use for the treatment and/or prophylaxis of diseases and disorders where the partial or total inactivation of adenosine A2A receptors could be beneficial.
Osmium-Promoted Transformation of Alkyl Nitriles to Secondary Aliphatic Amines: Scope and Mechanism
作者:Juan C. Babón、Miguel A. Esteruelas、Ana M. López、Enrique Oñate
DOI:10.1021/acs.organomet.0c00236
日期:2020.6.8
symmetrical and asymmetricalsecondary aliphatic amines promoted by the hexahydride complex OsH6(PiPr3)2 (1) is described, and the mechanisms of the reactions involved are established. Complex 1 catalyzes the aforementioned transformations of aryl-, pyridyl-, and alkoxy-functionalized alkyl nitriles with linear or branched chains. The formation of the secondary amines involves primary imines, primary amines
描述了由六氢化物配合物OsH 6(P i Pr 3)2(1)促进的烷基腈向对称和不对称仲脂肪族仲胺的转化,并建立了涉及的反应机理。配合物1催化具有直链或支链的芳基,吡啶基和烷氧基官能化的烷基腈的上述转化。仲胺的形成涉及伯亚胺,伯胺和仲亚胺作为有机中间体。反应在温和的条件下(甲苯,100°C和4 bar H 2)进行。1的化学计量反应与新戊腈和2-甲氧基乙腈一起使我们能够分离三氢化物氮杂亚乙烯基衍生物OsH 3 ═N═CHR}(P i Pr 3)2(R = t Bu(3),CH 2 OMe(4))。它们的形成涉及将底物的N–C三键插入不饱和四氢化物OsH 4(P i Pr 3)2(A)的Os–H键中,这是通过从六氢化合物中消除H 2产生的前体。这些三氢化物氮杂亚乙烯基物质与H 2的反应是还原腈的N-C三键的关键步骤。在没有H 2的情况下,A对氮杂亚乙烯基配体的攻击会导致其C(sp 2)–C(sp
NEW ADENOSINE RECEPTOR LIGANDS AND USES THEREOF
申请人:Schann Stephan
公开号:US20110288074A1
公开(公告)日:2011-11-24
The present invention provides new compounds with high affinity for adenosine A
2A
receptors. It also provides antagonists of adenosine A
2A
receptors and their use as medicaments for the treatment and/or prophylaxis of diseases and disorders where the partial or total inactivation of adenosine A
2A
receptors signalling pathways could be beneficial such as Alzheimer's disease, Parkinson's disease, attention deficit and hyperactivity disorders (ADHD), Huntington's disease, neuroprotection, schizophrenia, anxiety and pain. The present invention further relates to pharmaceutical compositions containing such new compounds with high affinity for adenosine A
2A
receptors and their use for the treatment and/or prophylaxis of diseases and disorders where the partial or total inactivation of adenosine A
2A
receptors could be beneficial