2VNT:
reference: Selective urokinase-type plasminogen activator inhibitors. 4. 1-(7-sulfonamidoisoquinolinyl)guanidines., Fish PV, Barber CG, Brown DG, Butt R, Collis MG, Dickinson RP, Henry BT, Horne VA, Huggins JP, King E, O'Gara M, McCleverty D, McIntosh F, Phillips C, Webster R, J Med Chem. 2007 May 17;50(10):2341-51. Epub 2007 Apr 21. PMID: 17447747

This OCA Structure page
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