| 4AXL: reference: Optimization of Triazine Nitriles as Rhodesain Inhibitors: Structure-Activity Relationships, Bioisosteric Imidazopyridine Nitriles, and X-ray Crystal Structure Analysis with Human Cathepsin L., Ehmke V, Winkler E, Banner DW, Haap W, Schweizer WB, Rottmann M, Kaiser M, Freymond C, Schirmeister T, Diederich F, ChemMedChem. 2013 Jun;8(6):967-75. doi: 10.1002/cmdc.201300112. Epub 2013 May 9. PMID: 23658062 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).