还原性烯烃交叉偶联代表了从现成的烯烃原料构建 C-C 键的直接策略。已经开发出一种利用草酸作为无痕关键的一锅法来实现缺电子烯烃的直接交叉偶联。整个过程是一个两步转化,涉及加氢羧化,然后是脱羧交叉偶联。双光催化剂系统对于成功至关重要,并协同促进两个反应步骤。该反应支持生物活性分子的有效合成。光氧化还原催化为 CO 2的生成提供了一种简单而温和的途径从草酸中分离出自由基阴离子,这为这种活性中间体在精细化学品合成中的广泛应用铺平了道路。
The present invention provides compounds, compositions thereof, and methods of using the same.
本发明提供了化合物、其组合物以及使用相同的方法。
Chemical Profiling of A‐to‐I RNA Editing Using a Click‐Compatible Phenylacrylamide
作者:Steve D. Knutson、Megan M. Korn、Ryan P. Johnson、Leanna R. Monteleone、Deanna M. Dailey、Colin S. Swenson、Peter A. Beal、Jennifer M. Heemstra
DOI:10.1002/chem.202001667
日期:2020.8.6
reactivity and selectivity for inosine in both ribonucleosides and RNA substrates, and then apply our approach to directly monitor in vitro A‐to‐IRNA editing activity using recombinant ADAR enzymes. This method improves upon existing inosine chemical‐labeling techniques and provides a cost‐effective, rapid, and non‐radioactive approach for detecting inosine formation in RNA. We envision this method will improve
Covalent Allosteric Inhibitors of Akt Generated Using a Click Fragment Approach
作者:Leandi Westhuizen、Jörn Weisner、Abu Taher、Ina Landel、Lena Quambusch、Marius Lindemann、Niklas Uhlenbrock、Matthias P. Müller、Ivan R. Green、Stephen C. Pelly、Daniel Rauh、Willem A. L. Otterlo
DOI:10.1002/cmdc.202100776
日期:2022.5.18
A small library of potential covalentallosteric imidazopyridine-based inhibitors was designed and synthesised, with click chemistry enabling a modular approach. The binding modes, potencies and antiproliferative activities of these compounds was subsequently explored. Three novel covalentinhibitors were identified, exhibiting moderate activity against Akt1 and various cancer cell lines, potentially
Chemoselective Peptide Modification via Photocatalytic Tryptophan β-Position Conjugation
作者:Younong Yu、Li-Kang Zhang、Alexei V. Buevich、Guoqing Li、Haiqun Tang、Petr Vachal、Steven L. Colletti、Zhi-Cai Shi
DOI:10.1021/jacs.8b03973
日期:2018.6.6
achieve high levels of selectivity for peptide or protein modification. A chemoselectivepeptide modification method via photocatalytic tryptophan β-position conjugation has been discovered. This transformation has good substrate scope for both peptide and Michael acceptor, and has good chemoselectivity versus other amino acid residues. The endogenous peptides, glucagon and GLP-1 amide, were both successfully
靶向色氨酸是实现肽或蛋白质修饰高水平选择性的有前途的策略。已经发现了一种通过光催化色氨酸 β 位缀合进行化学选择性肽修饰的方法。这种转化对肽和迈克尔受体都具有良好的底物范围,并且对其他氨基酸残基具有良好的化学选择性。内源性肽、胰高血糖素和 GLP-1 酰胺都在色氨酸 β 位成功结合。胰岛素被研究为非色氨酸控制分子,导致排他的 B 链 C 端选择性脱羧结合。这种转化为肽修饰提供了一种新方法,以支持新治疗肽、蛋白质标记和生物偶联的发现。
Covalent Inhibition by a Natural Product-Inspired Latent Electrophile
作者:David P. Byun、Jennifer Ritchie、Yejin Jung、Ronald Holewinski、Hong-Rae Kim、Ravichandra Tagirasa、Joseph Ivanic、Claire M. Weekley、Michael W. Parker、Thorkell Andresson、Euna Yoo
DOI:10.1021/jacs.3c00598
日期:2023.5.24
global cysteine reactivity and selectivity of a set of BDHI-functionalized chemical fragments using competitive chemoproteomic profiling methods. Our study demonstrates that BDHIs capably engage reactive cysteine residues in the human proteome and the selectivity landscape of cysteines liganded by BDHI is distinct from that of haloacetamide electrophiles. Given its tempered reactivity, BDHIs showed restricted