InChI=1S/C15H21Br2N5O5/c1-26-11-8(16)4-15(12(24)10(11)17)5-9(22-27-15)13(25)21-6-7(23)2-3-20-14(18)19/h4,7,12,23-24H,2-3,5-6H2,1H3,(H,21,25)(H4,18,19,20)/t7-,12+,15-/m0/s1