InChI=1S/C22H26N2O9/c1-24(2)15-10-6-9-13(18(29)22(10,33)19(30)14(17(15)28)20(23)31)16(27)12-8(21(9,32)7-25)4-3-5-11(12)26/h3-5,9-10,14-15,17,25-26,28-29,32-33H,6-7H2,1-2H3,(H2,23,31)/t9?,10?,14?,15?,17?,21-,22+/m1/s1