InChI=1/C16H14N4O/c1-4-8-15-11(5-1)12(9-10-21-15)19-20-16-17-13-6-2-3-7-14(13)18-16/h1-8H,9-10H2,(H2,17,18,20)/b19-12+/f/h17,20H	BDFBDEB8F2C6B7C6