InChI=1S/C25H28N2O6/c1-5-17(21-22(29)18-11-6-7-12-19(18)32-23(21)30)15-9-8-10-16(13-15)27-20(28)14-26-24(31)33-25(2,3)4/h6-13,17,29H,5,14H2,1-4H3,(H,26,31)(H,27,28)/t17-/m0/s1