3KNX:
reference: Discovery and structure-activity relationship of P1-P3 ketoamide derived macrocyclic inhibitors of hepatitis C virus NS3 protease., Venkatraman S, Velazquez F, Wu W, Blackman M, Chen KX, Bogen S, Nair L, Tong X, Chase R, Hart A, Agrawal S, Pichardo J, Prongay A, Cheng KC, Girijavallabhan V, Piwinski J, Shih NY, Njoroge FG, J Med Chem. 2009 Jan 22;52(2):336-46. PMID: 19102654

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