InChI=1S/C10H15BN4O6S/c1-10(2,8(17)18)21-15-6(5-3-22-9(12)14-5)7(16)13-4-11(19)20/h3,19-20H,4H2,1-2H3,(H2,12,14)(H,13,16)(H,17,18)/b15-6-