5K5E:
reference: Discovery and Structure-Activity Relationships of a Highly Selective Butyrylcholinesterase Inhibitor by Structure-Based Virtual Screening., Dighe SN, Deora GS, De la Mora E, Nachon F, Chan S, Parat MO, Brazzolotto X, Ross BP, J Med Chem. 2016 Jul 26. PMID: 27405689

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).