2JK7:
reference: Structure-Based Design, Synthesis, Evaluation, and Crystallographic Studies of Conformationally Constrained Smac Mimetics as Inhibitors of the X-linked Inhibitor of Apoptosis Protein (XIAP)., Sun H, Stuckey JA, Nikolovska-Coleska Z, Qin D, Meagher JL, Qiu S, Lu J, Yang CY, Saito NG, Wang S, J Med Chem. 2008 Oct 28. PMID: 18954041

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