5ZZ4:
reference: Design and Synthesis of Novel Amino-triazine Analogs as Selective Bruton's Tyrosine Kinase Inhibitors for Treatment of Rheumatoid Arthritis., Kawahata W, Asami T, Kiyoi T, Irie T, Taniguchi H, Asamitsu Y, Inoue T, Miyake T, Sawa M, J Med Chem. 2018 Sep 14. doi: 10.1021/acs.jmedchem.8b01147. PMID: 30216722

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