InChI=1/C20H20N4O4/c1-20(13-8-3-2-4-9-13)18(27)24(19(28)22-20)23-17(26)14-11-12-7-5-6-10-15(12)21-16(14)25/h2-4,8-9,11H,5-7,10H2,1H3,(H,21,25)(H,22,28)(H,23,26)/t20-/m1/s1/f/h21-23H	A7D237EEFBB01D1C