Novel Diamino Derivatives of [1,2,4]Triazolo[1,5-a][1,3,5]triazine as Potent and Selective Adenosine A2a Receptor Antagonists
摘要:
Piperazine derivatives of 2-furanyl[1,2,4]triazolo[1,5-a][1,3,5]triazine have recently been demonstrated to be potent and selective adenosine A(2a) receptor antagonists with oral activity in rodent models of Parkinson's disease. We have replaced the piperazinyl group with a variety of linear, monocyclic, and bicyclic diamines. Of these diamines, (R)-2-(aminomethyl)pyrrolidine is a particularly potent and selective replacement for the piperazinyl group. With this diamine component, we have been able to prepare numerous analogues with low nanomolar affinity toward the A(2a) receptor and good selectivity with respect to the A(1) receptor (> 200-fold in some cases). Selected analogues from this series of [1,2,4]triazolo[1,5-a][1,3,5]triazine have now been shown to be orally active in the mouse catalepsy model.
[EN] TRIAZOLO[1,5-C]PYRIMIDINES AND PYRAZOLO[1,5-C]PYRIMIDINES USEFUL AS A2A ADENOSIN E RECEPTOR ANTAGONISTS [FR] TRIAZOLO[1,5-C]PYRIMIDINES ET PYRAZOLO[1,5-C]PYRIMIDINES ET PROCEDES DE PREPARATION ET D'UTILISATION DE CELLES-CI
Distal Stereocontrol Using Guanidinylated Peptides as Multifunctional Ligands: Desymmetrization of Diarylmethanes via Ullman Cross-Coupling
作者:Byoungmoo Kim、Alex J. Chinn、Daniel R. Fandrick、Chris H. Senanayake、Robert A. Singer、Scott J. Miller
DOI:10.1021/jacs.6b03444
日期:2016.6.29
guanidine-containing peptides as multifunctional ligands for transition-metal catalysis and its application in the remote desymmetrization of diarylmethanes via copper-catalyzed Ullman cross-coupling. Through design of these peptides, high levels of enantioinduction and good isolated yields were achieved in the long-range asymmetriccross-coupling (up to 93:7 er and 76% yield) between aryl bromides and malonates
我们报道了一类新型含胍肽作为过渡金属催化多功能配体的开发及其在通过铜催化乌尔曼交叉偶联二芳基甲烷远程去对称化中的应用。通过这些肽的设计,芳基溴和丙二酸之间的长程不对称交叉偶联(高达 93:7 er 和 76% 产率)实现了高水平的对映诱导和良好的分离产率。我们的机制研究表明,远端立体控制是通过肽的路易斯碱性C端羧酸酯与底物的远端芳烃之间的Cs桥相互作用来实现的。
PYRIMIDINE COMPOUNDS AS INHIBITORS OF PROTEIN KINASES IKK EPSILON AND/OR TBK-1, PROCESSES FOR THEIR PREPARATION, AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM
申请人:Perrior Trevor Robert
公开号:US20130267491A1
公开(公告)日:2013-10-10
C Compounds of the general formula (I) and salts thereof are useful in the treatment of diseases associated with aberrant activity of the protein kinases IKKε and/or TBK-1: in which: R
1
represents an aliphatic heterocyclyl group having 4, 5, 6 or 7 ring atoms, bonded to the phenyl group shown in formula I through a ring nitrogen atom, and optionally substituted by one or more substituents defined in the Specification; R
2
represents a phenyl or heteroaryl group which is optionally substituted by one or more substituents defined in the Specification; and each of R
3
and R
4
independently represents a hydrogen atom or a C
1-4
alkyl group.
[EN] TRIAZOLO[1,5-A]PYRIMIDINES AND PYRAZOLO[1,5-A]PYRIMIDINES USEFUL AS A2A ADENOSIN E RECEPTOR ANTAGONISTS<br/>[FR] TRIAZOLO[1,5-A]PYRIMIDINES ET PYRAZOLO[1,5-A]PYRIMIDINES ET PROCEDES DE PREPARATION ET D'UTILISATION DE CELLES-CI