4C39:
reference: An Accessible Chiral Linker to Enhance Potency and Selectivity of Neuronal Nitric Oxide Synthase Inhibitors., Jing Q, Li H, Roman LJ, Martasek P, Poulos TL, Silverman RB, ACS Med Chem Lett. 2014 Jan 9;5(1):56-60. PMID: 24660051

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