InChI=1S/C15H21N5O9/c1-2-5(21)4-3-18-11(20-15(16)17)6(19-4)13(27)29-14-9(24)7(22)8(23)10(28-14)12(25)26/h7-10,14,18,22-24H,2-3H2,1H3,(H,25,26)(H4,16,17,20)