6DL2:
reference: Discovery of QCA570 as an Exceptionally Potent and Efficacious Proteolysis Targeting Chimera (PROTAC) Degrader of the Bromodomain and Extra-Terminal (BET) Proteins Capable of Inducing Complete and Durable Tumor Regression., Qin C, Hu Y, Zhou B, Fernandez-Salas E, Yang CY, Liu L, McEachern D, Przybranowski S, Wang M, Stuckey J, Meagher J, Bai L, Chen Z, Lin M, Yang J, Ziazadeh DN, Xu F, Hu J, Xiang W, Huang L, Li S, Wen B, Sun D, Wang S, J Med Chem. 2018 Aug 9;61(15):6685-6704. doi: 10.1021/acs.jmedchem.8b00506. Epub , 2018 Jul 18. PMID: 30019901

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