InChI=1S/C18H28N4O7/c19-12(16(24)25)3-1-2-6-22-8-10(4-5-13(20)17(26)27)11(15(23)9-22)7-14(21)18(28)29/h8-9,12-14H,1-7,19-21H2,(H3-,23,24,25,26,27,28,29)/t12-,13-,14-/m0/s1