4R0I:
reference: Discovery of O-(3-carbamimidoylphenyl)-l-serine amides as matriptase inhibitors using a fragment-linking approach., Goswami R, Wohlfahrt G, Mukherjee S, Ghadiyaram C, Nagaraj J, Satyam LK, Subbarao K, Gopinath S, Krishnamurthy NR, Subramanya HS, Ramachandra M, Bioorg Med Chem Lett. 2015 Feb 1;25(3):616-20. doi: 10.1016/j.bmcl.2014.12.008., Epub 2014 Dec 17. PMID: 25556099

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