| 4DFN: reference: Pyrazine-based Syk kinase inhibitors., Forns P, Esteve C, Taboada L, Alonso JA, Orellana A, Maldonado M, Carreno C, Ramis I, Lopez M, Miralpeix M, Vidal B, Bioorg Med Chem Lett. 2012 Apr 15;22(8):2784-8. Epub 2012 Mar 2. PMID: 22425453 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).