3CVK:
reference: Hexahydro-pyrrolo- and hexahydro-1H-pyrido[1,2-b]pyridazin-2-ones as potent inhibitors of HCV NS5B polymerase., Ruebsam F, Sun Z, Ayida BK, Webber SE, Zhou Y, Zhao Q, Kissinger CR, Showalter RE, Shah AM, Tsan M, Patel R, Lebrun LA, Kamran R, Sergeeva MV, Bartkowski DM, Nolan TG, Norris DA, Kirkovsky L, Bioorg Med Chem Lett. 2008 Sep 15;18(18):5002-5. Epub 2008 Aug 9. PMID: 18722768

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