InChI=1/C27H24N2O5/c1-5-34-27(33)18-6-9-20(10-7-18)29-25(31)21-11-8-19(14-22(21)26(29)32)24(30)28-23-16(3)12-15(2)13-17(23)4/h6-14H,5H2,1-4H3,(H,28,30)/f/h28H 1446DDA6E5D414CF