Chemoselective Peptide Backbone Diversification and Bioorthogonal Ligation by Ruthenium‐Catalyzed C−H Activation/Annulation
作者:Liangliang Song、Gerardo M. Ojeda‐Carralero、Divyaakshar Parmar、David A. González‐Martínez、Luc Van Meervelt、Johan Van der Eycken、Jan Goeman、Daniel G. Rivera、Erik V. Van der Eycken
DOI:10.1002/adsc.202100323
日期:2021.7
The field of peptide derivatization by metal-catalyzed C−H activation has been mostly directed to modify the side chains, but poor attention has been given to the peptide backbone. Here we report a ruthenium-catalyzed C−H activation/annulation process that can chemoselectively modify the peptide backbone producing functionalized isoquinolone scaffolds with high regioselectivity in a rapid and step-economical
that gave the best results as in our indole series (sulphonamide functions and one/two carboxylic groups) and in Panx-1 blockers reported in the literature (sulphonic acid). Compounds 4 and 13, the latter being an analogue of the drug Probenecid, are the most potent Panx-1 blockers obtained in this study, with I = 97% and I = 93.7% at 50 µM, respectively. Both compounds, tested in a mouse model of oxaliplatin-induced
Structure-activity relationship studies in substituted sulfamoyl benzamidothiazoles that prolong NF-κB activation
作者:Nikunj M. Shukla、Michael Chan、Fitzgerald S. Lao、Paul J. Chu、Masiel Belsuzarri、Shiyin Yao、Jason Nan、Fumi Sato-Kaneko、Tetsuya Saito、Tomoko Hayashi、Maripat Corr、Dennis A. Carson、Howard B. Cottam
DOI:10.1016/j.bmc.2021.116242
日期:2021.8
Sytschewa et al., Sb. Statei Obshch. Khim., 1953, p. 568,569