Author: Chunlong Ma; Brett Hurst; Yanmei Hu; Tommy Szeto; Bart Tarbet; Jun Wang
Title: Boceprevir, GC-376, and calpain inhibitors II, XII inhibit SARS-CoV-2 viral replication by targeting the viral main protease Document date: 2020_4_20
ID: 047xpt2c_20
Snippet: The SARS-CoV-2 M pro FRET substrate Dabcyl-KTSAVLQ/SGFRKME(Edans) was synthesized by solid-phase synthesis through iterative cycles of coupling and deprotection using the previously optimized procedure. 34 Specifically, chemmatrix rink-amide resin was used. Typical coupling condition was 5 equiv of amino acid, 5 equiv of HATU, and 10 equiv of DIEA in DMF for 5 minutes at 80 o C. For deprotection, 5% piperazine plus 0.1 M HOBt were used and the mi.....
Document: The SARS-CoV-2 M pro FRET substrate Dabcyl-KTSAVLQ/SGFRKME(Edans) was synthesized by solid-phase synthesis through iterative cycles of coupling and deprotection using the previously optimized procedure. 34 Specifically, chemmatrix rink-amide resin was used. Typical coupling condition was 5 equiv of amino acid, 5 equiv of HATU, and 10 equiv of DIEA in DMF for 5 minutes at 80 o C. For deprotection, 5% piperazine plus 0.1 M HOBt were used and the mixture was heated at 80 o C for 5 minutes. The peptide was cleaved from the resin using 95% TFA, 2.5% Tris, 2.5% H2O and the crude peptide was precipitated from ether after removal of TFA. The final peptide was purified by preparative HPLC.
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