InChI=1/C27H24N2O5/c1-16-13-17(2)15-20(14-16)28-24(30)23(19-9-5-4-6-10-19)34-27(33)18(3)29-25(31)21-11-7-8-12-22(21)26(29)32/h4-15,18,23H,1-3H3,(H,28,30)/t18-,23+/m0/s1/f/h28H DB2BA6CE24D5781F