| 3NOX: reference: Discovery of 6-(Aminomethyl)-5-(2,4-dichlorophenyl)-7-methylimidazo[1,2-a]pyrimidine-2- carboxamides as potent, selective dipeptidyl peptidase-4 (DPP4) inhibitors., Meng W, Brigance RP, Chao HJ, Fura A, Harrity T, Marcinkeviciene J, O'Connor SP, Tamura JK, Xie D, Zhang Y, Klei HE, Kish K, Weigelt CA, Turdi H, Wang A, Zahler R, Kirby MS, Hamann LG, J Med Chem. 2010 Aug 12;53(15):5620-8. PMID: 20684603 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).