5QBV:
reference: Diazinones as P2 replacements for pyrazole-based cathepsin S inhibitors., Ameriks MK, Bembenek SD, Burdett MT, Choong IC, Edwards JP, Gebauer D, Gu Y, Karlsson L, Purkey HE, Staker BL, Sun S, Thurmond RL, Zhu J, Bioorg Med Chem Lett. 2010 Jul 15;20(14):4060-4. Epub 2010 May 25. PMID: 20541404

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