InChI=1S/C16H21N5O9/c22-2-6-5(23)1-7(29-6)21-4-19-8-13(17-3-18-14(8)21)20-15-11(26)9(24)10(25)12(30-15)16(27)28/h3-7,9-12,15,22-26H,1-2H2,(H,27,28)(H,17,18,20)