InChI=1S/C16H22N4O7/c17-16(5-8-1-3-9(22)4-2-8)13(19-15(27)20-14(16)26)18-6-10(23)12(25)11(24)7-21/h1-4,10-12,21-25H,5-7,17H2,(H2,18,19,20,26,27)/t10-,11+,12-,16?/m0/s1