InChI=1S/C20H23N7O7/c21-20-26-15-14(17(30)27-20)24-12(7-23-15)6-22-11-3-1-9(2-4-11)16(29)25-13(19(33)34)5-10(8-28)18(31)32/h1-4,8,10,12-13,22,24H,5-7H2,(H,25,29)(H,31,32)(H,33,34)(H4,21,23,26,27,30)