InChI=1/C20H17ClN4O4/c1-20(12-6-2-3-7-13(12)21)18(28)25(19(29)23-20)11-17(27)24-10-16(26)22-14-8-4-5-9-15(14)24/h2-9H,10-11H2,1H3,(H,22,26)(H,23,29)/t20-/m0/s1/f/h22-23H B44EF63A8557BCD3