InChI=1/C20H23ClN4O4/c1-12-7-13(2)20(14(3)8-12)23-19(27)11-24(4)10-18(26)22-15-5-6-16(21)17(9-15)25(28)29/h5-9H,10-11H2,1-4H3,(H,22,26)(H,23,27)/p+1/fC20H24ClN4O4/h22-24H/q+1 DC89E8AB55EF15FC