2IEG:
reference: Development of potent, orally active 1-substituted-3,4-dihydro-2-quinolone glycogen phosphorylase inhibitors., Birch AM, Kenny PW, Oikonomakos NG, Otterbein L, Schofield P, Whittamore PR, Whalley DP, Bioorg Med Chem Lett. 2006 Oct 19;. PMID: 17095214

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