4O4R:
reference: PPNDS inhibits murine Norovirus RNA-dependent RNA-polymerase mimicking two RNA stacking bases., Croci R, Tarantino D, Milani M, Pezzullo M, Rohayem J, Bolognesi M, Mastrangelo E, FEBS Lett. 2014 May 2;588(9):1720-5. doi: 10.1016/j.febslet.2014.03.021. Epub, 2014 Mar 18. PMID: 24657439

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