InChI=1S/C25H30N2O4/c1-17(2)13-14-31-21-11-7-18(8-12-21)15-22-25(29)27(3)23(24(28)26-22)16-19-5-9-20(30-4)10-6-19/h5-13,22-23H,14-16H2,1-4H3,(H,26,28)/t22-,23-/m0/s1