5WKJ:
reference: Structure-guided design of potent and permeable inhibitors of MERS coronavirus 3CL protease that utilize a piperidine moiety as a novel design element., Galasiti Kankanamalage AC, Kim Y, Damalanka VC, Rathnayake AD, Fehr AR, Mehzabeen N, Battaile KP, Lovell S, Lushington GH, Perlman S, Chang KO, Groutas WC, Eur J Med Chem. 2018 Mar 6;150:334-346. doi: 10.1016/j.ejmech.2018.03.004. PMID: 29544147

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