[EN] TUNABLE PROBES FOR SELECTIVE PROTEIN LABELLING AND ENZYME INHIBITION<br/>[FR] SONDES ACCORDABLES POUR MARQUAGE SÉLECTIF DE PROTÉINES ET INHIBITION ENZYMATIQUE
申请人:AAA CHEMISTRY APS
公开号:WO2018234483A1
公开(公告)日:2018-12-27
The present invention relates to methods of selectively reacting a compound of Formula (I) with a cysteine residue, which is contained in the sequence of a polypeptide. The methods may be employed in the fields of labelling polypeptides, detecting polypeptides, modulation of enzyme activity, isolation of polypeptides, methods of diagnostics, methods of prevention or treatment of clinical conditions or methods of transportation of compounds e.g. prodrugs.
Photoassisted Charge Transfer Between DMF and Substrate: Facile and Selective
<i>N</i>
,
<i>N</i>
‐Dimethylamination of Fluoroarenes
作者:Tharique N. Ansari、Sudripet Sharma、Pranjal P. Bora、Deborah Ogulu、Saurav Parmar、Fabrice Gallou、Pawel M. Kozlowski、Sachin Handa
DOI:10.1002/cssc.202100761
日期:2021.7.6
A reversible Van der Waals complex formation between the electron-deficient fluorinated aromatic ring and N,N-dimethylformamide (DMF) molecules followed by light irradiation resulted in chargetransfer (CT) process. The complex was stabilized by ammonium formate and further decomposed to form the C−N bond. Control experiments revealed that the simultaneous SNAr pathway also contributes to product formation
缺电子的氟化芳环和N,N-二甲基甲酰胺 (DMF) 分子之间形成可逆的范德华复合物,然后进行光照射,导致电荷转移 (CT) 过程。配合物被甲酸铵稳定并进一步分解形成CN键。对照实验表明,同步的 S N Ar 途径也有助于产物的形成。这种方法温和、不含金属,对各种基材的胺化都很有效。该方法的重现性也在克级反应中得到验证。CT 状态得到控制 UV/Vis 光谱和计算研究的支持。
Metal-Free Catalyzed Defluorinative O-Arylation of Pyrazolones with Polyfluoroarenes
作者:Tao Qin、Bin Liu、Liu Yang
DOI:10.1055/a-2158-1015
日期:2023.12
An efficient and general method for defluorinative O-arylation of pyrazolones has been successfully developed under metal-free conditions. This methodology allows for the synthesis of desired products by using a wide range of pyrazolones and polyfluoroarenes as starting materials. The compatibility of various substrates was demonstrated, ensuring the applicability of this method. Furthermore, the synthesis
Transition metal-free site-selective <i>O</i>-arylation of cyclic 1,3-dicarbonyls with polyfluoroarenes
作者:Jingqi Tian、Liu Yang、Shaoqing Wang、Tao Qin、Heye Zhou、Bin Liu
DOI:10.1093/chemle/upae011
日期:2024.1.11
A transition metal-free strategy is reported for the site-selectiveO-arylation of cyclic 1,3-dicarbonyls with polyfluoroarenes. This method offers a straightforward and alternative pathway for the synthesis of aryl ethers, accommodating a wide array of functional groups. Furthermore, the practical value of this methodology is underscored by its facile scalability to gram-level reactions, its potential
Rational Tuning of Fluorobenzene Probes for Cysteine‐Selective Protein Modification
作者:Ahmed M. Embaby、Sanne Schoffelen、Christian Kofoed、Morten Meldal、Frederik Diness
DOI:10.1002/anie.201712589
日期:2018.7.2
selective cysteine labeling have been developed by rational reactivity tuning. Tuning was achieved by selecting an electron‐withdrawing para substituent in combination with variation of the number of fluorine substituents. Optimized probes chemoselectively arylated cysteine residues in proteins under aqueous conditions. Probes linked to azide, biotin, or a fluorophore were applicable to labeling of eGFP and