Direct C5-Arylation Reaction between Imidazoles and Aryl Chlorides Catalyzed by Palladium Complexes with Phosphines and N-Heterocyclic Carbenes
作者:P. Vijaya Kumar、Wu-Shien Lin、Jiun-Shian Shen、Debkumar Nandi、Hon Man Lee
DOI:10.1021/om200490k
日期:2011.10.10
Palladium(II) acetate complexes bearing phosphines and carbene ligands, Pd(L)(PR3)(OAc)2 (1a, R = Ph; 1b, R = Cy; L = 1,3-dibenzylimidazol-2-ylidene), were prepared by salt metathesis reactions of their chloro complexes with AgOAc in good yields. The electron-rich 1b was efficient in catalyzing C-5 direct arylation of imidazoles with aryl halides. Most significantly, the catalytic system allows a range
带有膦和卡宾配体的钯钯(II)配合物Pd(L)(PR 3)(OAc)2(1a,R = Ph; 1b,R = Cy; L = 1,3-二苄基咪唑-2-亚烷基),通过氯络合物与AgOAc的盐复分解反应以高收率制备了这些化合物。富电子1b在催化咪唑与芳基卤化物的C-5直接芳基化方面非常有效。最重要的是,催化系统允许使用多种芳基氯作为底物。微波辐射可有效促进反应,仅2小时即可获得良好的收率。结合经典的C–C键形成反应方法,成功地从1,4-二氯苯和1-溴-4-氯苯中获得了具有联芳基和苯乙烯基亚基的新型咪唑衍生物。
Development of a supramolecular ensemble of an AIEE active hexaphenylbenzene derivative and Ag@Cu<sub>2</sub>O core–shell NPs: an efficient photocatalytic system for C–H activation
作者:Radhika Chopra、Manoj Kumar、Vandana Bhalla
DOI:10.1039/c6cc03956a
日期:——
Aggregates of hexaphenylbenzene stabilized Ag@Cu2O core–shell nanoparticles exhibit excellent photocatalytic efficiency for synthesizing imidazole/benzimidazole derivatives via C–H activation.
The present invention provides compounds having a structure according to Formula (I):
or a salt or solvate thereof, wherein ring A, X, R
1
, R
2
, R
3
, R
4
, R
5
and R
6
are defined herein. The invention further provides pharmaceutical compositions including the compounds of the invention and methods of making and using the compounds and compositions of the invention, e.g., in the treatment and prevention of various disorders, such as Parkinson's disease.
Purinones as ubiquitin-specific protease 1 inhibitors
申请人:Forma Therapeutics, Inc.
公开号:US10189841B2
公开(公告)日:2019-01-29
The application relates to inhibitors of USP1 useful in the treatment of cancers, and other USP1 associated diseases and disorders, having the Formula:
where R1, R2, R3, R3′, R4, R5, X1, X2, X3, X4, and n are described herein.
本申请涉及可用于治疗癌症和其他 USP1 相关疾病和失调的 USP1 抑制剂,其分子式如下:
其中 R1、R2、R3、R3′、R4、R5、X1、X2、X3、X4 和 n 如本文所述。
PURINONES AS UBIQUITIN-SPECIFIC PROTEASE 1 INHIBITORS