4YQH:
reference: Evolution and synthesis of novel orally bioavailable inhibitors of PDE10A., Burdi DF, Campbell JE, Wang J, Zhao S, Zhong H, Wei J, Campbell U, Shao L, Herman L, Koch P, Jones PG, Hewitt MC, Bioorg Med Chem Lett. 2015 May 1;25(9):1864-8. doi: 10.1016/j.bmcl.2015.03.050., Epub 2015 Mar 26. PMID: 25863433

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