InChI=1/C21H24N4O4/c1-6-29-21(28)16-10-15-18(25(11-12(2)3)19(16)22-14(5)26)23-17-13(4)8-7-9-24(17)20(15)27/h7-10,12H,6,11H2,1-5H3/p+1/fC21H25N4O4/h26H/q+1 9CB66F2B1D442377