6C0S:
reference: Pyridazine and pyridazinone derivatives as potent and selective factor XIa inhibitors., Hu Z, Wang C, Han W, Rossi KA, Bozarth JM, Wu Y, Sheriff S, Myers JE Jr., Luettgen JM, Seiffert DA, Wexler RR, Quan ML, Bioorg Med Chem Lett. 2018 Feb 27. pii: S0960-894X(18)30155-0. doi:, 10.1016/j.bmcl.2018.02.049. PMID: 29501396

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