Figure 5. The 2D structures of the reference compounds and novel compounds selected from virtual screening by chemdraw. 3D structures of the reference compounds and novel compounds selected from virtual screening by DS 4.5. And Pharmacophore predictions using 3D-QSAR (Green represents hydrogen acceptor, and blue represents hydrophobic center and purple represents hydrogen donor). (A) ZINC000004098459 (B) ZINC000049872393 (C) Vorasidenib (D) Ivosidenib.