InChI=1S/C20H21N3O9/c1-9(25)23-15-6-22-14-4-12(7-24)5-16(30-10(2)26)17(14)13(8-29-19(21)28)20(32-22,18(15)23)31-11(3)27/h4-5,7,13,15,18H,6,8H2,1-3H3,(H2,21,28)