InChI=1S/C12H14N2O10/c1-2-3(8(18)14-12(22)13-2)10(21)24-11-6(17)4(15)5(16)7(23-11)9(19)20/h4-7,11,15-17H,1H3,(H,19,20)(H2,13,14,18,22)