4I7F:
reference: Synthesis and biological evaluation of phosphonate analogues of nevirapine., Parrish J, Tong L, Wang M, Chen X, Lansdon EB, Cannizzaro C, Zheng X, Desai MC, Xu L, Bioorg Med Chem Lett. 2013 Mar 1;23(5):1493-7. doi: 10.1016/j.bmcl.2012.12.049., Epub 2012 Dec 21. PMID: 23375792

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