1D4L:
reference: Synthesis, stability, antiviral activity, and protease-bound structures of substrate-mimicking constrained macrocyclic inhibitors of HIV-1 protease., Tyndall JD, Reid RC, Tyssen DP, Jardine DK, Todd B, Passmore M, March DR, Pattenden LK, Bergman DA, Alewood D, Hu SH, Alewood PF, Birch CJ, Martin JL, Fairlie DP, J Med Chem 2000 Sep 21;43(19):3495-504. PMID: 11000004

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