InChI=1S/C21H22N4O8/c1-8-4-5-22-18-12(8)24-19(29)11-6-10(7-23-17(11)25(18)9-2-3-9)32-21-15(28)13(26)14(27)16(33-21)20(30)31/h4-7,9,13-16,21,26-28H,2-3H2,1H3,(H,24,29)(H,30,31)/t13-,14-,15+,16-,21+/m1/s1