| 3ZO3: reference: Synthesis and evaluation of heteroaryl substituted diazaspirocycles as scaffolds to probe the ATP-binding site of protein kinases., Allen CE, Chow CL, Caldwell JJ, Westwood IM, M van Montfort RL, Collins I, Bioorg Med Chem. 2013 Sep 15;21(18):5707-24. doi: 10.1016/j.bmc.2013.07.021. Epub, 2013 Jul 19. PMID: 23920481 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).