InChI=1/C15H14N4O2/c1-18-13-12(14(20)19(2)15(18)21)16-11(17-13)9-8-10-6-4-3-5-7-10/h3-9H,1-2H3,(H,16,17)/b9-8+/f/h16H	6C4E8BDC8F2AF857