InChI=1S/C20H23N7O7/c21-20-25-16-15(18(32)26-20)27(9-28)12(8-23-16)7-22-11-3-1-10(2-4-11)17(31)24-13(19(33)34)5-6-14(29)30/h1-4,8,12-13,22,28H,5-7,9H2,(H,24,31)(H,29,30)(H,33,34)(H3,21,25,26,32)/t12-,13-/m0/s1