Homo- and Heteroannulation of sp<sup>3</sup> C–H Bonds in Acetophenones for Divergent Synthesis of Thienothiazoles
作者:Phuc H. Pham、Khang X. Nguyen、Hoai T. B. Pham、Tung T. Nguyen、Nam T. S. Phan
DOI:10.1021/acs.orglett.9b03414
日期:2019.11.1
2-d]thiazoles via direct functionalization of C(sp3)–H bonds in acetophenones was reported. The transformation is divergent to afford either 2-phenylbenzo[4,5]thieno[3,2-d]thiazoles or benzo[4,5]thieno[3,2-d]thiazol-2-yl(phenyl)methanones. Cross-coupling of acetophenones with C–H bonds in phenylacetic acids, methylazaarenes, and aldehydes was also feasible. Excellent tolerance of functionalities was observed.
通过苯乙酮中的C(sp 3)-H键直接官能化合成了稠合噻吩并[3,2- d ]噻唑。该转化是不同的,以提供2-苯基苯并[4,5]噻吩并[3,2- d ]噻唑或苯并[4,5]噻吩并[3,2 - d ]噻唑-2-基(苯基)甲烷。在苯乙酸,甲基氮杂芳烃和醛中,苯乙酮与C–H键的交叉偶联也是可行的。观察到对功能的极好的耐受性。我们的方法标志着苯乙酮中C(sp 3)–H键的罕见功能化是在没有预先官能化肟酯的情况下获得杂环。
Covalent Occlusion of the RORγt Ligand Binding Pocket Allows Unambiguous Targeting of an Allosteric Site
作者:Femke A. Meijer、Maxime C. M. van den Oetelaar、Richard G. Doveston、Ella N. R. Sampers、Luc Brunsveld
DOI:10.1021/acsmedchemlett.1c00029
日期:2021.4.8
autoimmune diseases, and inhibition of RORγt with smallmolecules thus holds great potential as a therapeutic strategy. RORγt has a unique allosteric ligand binding site in the ligand binding domain, which is distinct from the canonical, orthosteric binding site. Allosteric modulation of RORγt shows high potential, but the targeted discovery of novel allosteric ligands is highly challenging via currently
A Scaffold‐Hopping Strategy toward the Identification of Inhibitors of Cyclin G Associated Kinase
作者:Randy Wouters、Junjun Tian、Piet Herdewijn、Steven De Jonghe
DOI:10.1002/cmdc.201800690
日期:2019.1.22
3-b]pyridine-based inhibitors of cyclinGassociatedkinase (GAK) displaying low nanomolar binding affinity for GAK and demonstrating broad-spectrum antiviral activity. To come up with novel core structures that act as GAK inhibitors, a scaffold-hopping approach was applied starting from two different isothiazolo[4,3-b]pyridines. In total, 13 novel 5,6- and 6,6-fused bicyclic heteroaromatic scaffolds were synthesized
(Chlorosulfonyl)benzenesulfonyl Fluorides—Versatile Building Blocks for Combinatorial Chemistry: Design, Synthesis and Evaluation of a Covalent Inhibitor Library
作者:Kateryna A. Tolmachova、Yurii S. Moroz、Angelika Konovets、Maxim O. Platonov、Oleksandr V. Vasylchenko、Petro Borysko、Sergey Zozulya、Anastasia Gryniukova、Andrey V. Bogolubsky、Sergey Pipko、Pavel K. Mykhailiuk、Volodymyr S. Brovarets、Oleksandr O. Grygorenko
DOI:10.1021/acscombsci.8b00130
日期:2018.11.12
Multigram synthesis of (chlorosulfonyl)benzenesulfonyl fluorides is described. Selective modification of these building blocks at the sulfonyl chloride function under parallelsynthesis conditions is achieved. It is shown that the reaction scope includes the use of (hetero)aromatic and electron-poor aliphatic amines (e.g., amino nitriles). Utility of the method is demonstrated by preparation of the
Facile Synthesis of Annelated NADH Model Precursors
作者:R. Benoit、G. Dupas、J. Bourguignon、G. Quéguiner
DOI:10.1055/s-1987-28195
日期:——
A convenient route to γ-cyano fused pyridine derivatives, which are precursors of NADH models, is described. The method involves the reaction of 3,3-dimethoxy-2-formyl-propionitrile sodium salt (1) with amino derivatives of electron donating heterocycles leading to the desired products by an easy one-pot synthesis.