Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
General structures of the peptidyl vinyl sulfones studied. All compounds except 371 and 373 contained a urea linkage between the R3 substituent and the peptide scaffold. R1 and R2 represent the side chains of the P1 and the P2 amino acids, respectively; R1′ represents vinyl sulfone, sulfonamide, or sulfonate ester substituents.
