1XQC:
reference: Selective estrogen receptor modulators with conformationally restricted side chains. Synthesis and structure-activity relationship of ERalpha-selective tetrahydroisoquinoline ligands., Renaud J, Bischoff SF, Buhl T, Floersheim P, Fournier B, Geiser M, Halleux C, Kallen J, Keller H, Ramage P, J Med Chem 2005 Jan 27;48(2):364-79. PMID: 15658851

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