6YTM:
reference: Stereoselective synthesis of allele-specific BET inhibitors., Bond AG, Testa A, Ciulli A, Org Biomol Chem. 2020 Aug 5. doi: 10.1039/d0ob01165g. PMID: 32756710

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