6N6O:
reference: Design and Optimization Leading to an Orally Active TTK Protein Kinase Inhibitor with Robust Single Agent Efficacy., Riggs JR, Elsner J, Cashion D, Robinson D, Tehrani L, Nagy M, Fultz KE, Krishna Narla R, Peng X, Tran T, Kulkarni A, Bahmanyar S, Condroski K, Pagarigan B, Fenalti G, LeBrun L, Leftheris K, Zhu D, Boylan JF, J Med Chem. 2019 May 9;62(9):4401-4410. doi: 10.1021/acs.jmedchem.8b01869. Epub, 2019 Apr 30. PMID: 30998356

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