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. 2020 Sep 8;28(22):115745. doi: 10.1016/j.bmc.2020.115745

Fig. 6.

Fig. 6

Chemical structures of piperidine carboxamide analogs with activity against PLpro from SARS-CoV. Hydrogen-bonding interaction is shown as a blue dotted line. Bumping collision is represented by a yellow-ray for the compound a.