Bioorthogonal Hydroamination of Push–Pull‐Activated Linear Alkynes
作者:Dahye Kang、Sheldon T. Cheung、Justin Kim
DOI:10.1002/anie.202104863
日期:2021.7.26
adequately protecting it against cellular nucleophiles. This design preserves the low steric profile of an alkyne and pairs it with a comparably unobtrusive hydroxylamine. The kinetics are on par with those of the fastest strain-promoted azide-alkyne cycloaddition reactions, the products regioselectively formed, the components sufficiently stable and easily installed, and the reaction suitable for cellular
N , N之间的生物正交反应描述了-二烷基羟胺和推拉活化卤代炔烃。我们探索了再杂化效应在激活炔烃中的应用,并且我们表明,当竞争的立体电子和感应因子得到适当平衡时,电子效应在未催化的共轭逆 Cope 消除反应中充分激活线性炔烃,同时充分保护其免受细胞亲核试剂的侵害。这种设计保留了炔烃的低空间分布,并将其与相对不显眼的羟胺配对。动力学与最快的应变促进叠氮化物-炔烃环加成反应相当,产物区域选择性形成,组分足够稳定且易于安装,反应适合细胞标记。
A MedChem toolbox for cereblon-directed PROTACs
作者:Christian Steinebach、Izidor Sosič、Stefanie Lindner、Aleša Bricelj、Franziska Kohl、Yuen Lam Dora Ng、Marius Monschke、Karl G. Wagner、Jan Krönke、Michael Gütschow
DOI:10.1039/c9md00185a
日期:——
A modular chemistry toolbox was developed for cereblon-directed PROTACs.
tag‐fused proteins is one of the most promising methods for regulating subcellular protein translocations and protein–protein interactions. However, light‐induced covalentprotein dimerization in living cells has yet to be established, despite its various advantages. Herein, we developed a photoactivatable covalentprotein‐labeling technology by applying a caged ligand to the BL‐tag system, a covalent protein
The invention relates to a compound characterized by general formula (100), wherein R1 and R6 are H or F, R2, R3, R4 and R5 can be any substituent, R7, R8, RN1, RN2, RN3 and RN4 are a hydrocarbon moiety, one of R9 and R10 is hydrogen and the other one is hydrogen or a saturated carbon atom connected to any substituent, and its use in staining and live cell fluorescence imaging.