InChI=1S/C21H22N4O8/c1-8-11(26)7-23-18-12(8)24-19(10-3-2-6-22-17(10)25(18)9-4-5-9)33-21-15(29)13(27)14(28)16(32-21)20(30)31/h2-3,6-7,9,13-16,21,26-29H,4-5H2,1H3,(H,30,31)/t13-,14-,15+,16-,21?/m0/s1