InChI=1S/C14H21N5O9/c1-5(15)10(23)16-6(2-3-20)11(24)17-7(14(26)27)4-8(21)28-13-9(22)12(25)18-19-13/h5-7,20,22H,2-4,15H2,1H3,(H,16,23)(H,17,24)(H,26,27)(H2,18,19,25)/t5-,6-,7-/m0/s1