3TYO:
reference: Intramolecular hydrogen bonding: A potential strategy for more bioavailable inhibitors of neuronal nitric oxide synthase., Labby KJ, Xue F, Kraus JM, Ji H, Mataka J, Li H, Martasek P, Roman LJ, Poulos TL, Silverman RB, Bioorg Med Chem. 2012 Feb 7. PMID: 22370337

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