5QC4:
reference: Thioether acetamides as P3 binding elements for tetrahydropyrido-pyrazole cathepsin S inhibitors., Wiener DK, Lee-Dutra A, Bembenek S, Nguyen S, Thurmond RL, Sun S, Karlsson L, Grice CA, Jones TK, Edwards JP, Bioorg Med Chem Lett. 2010 Apr 1;20(7):2379-82. Epub 2010 Feb 8. PMID: 20188543

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