InChI=1S/C25H30N2O4/c1-4-31-19-10-12-27(22(14-19)17-5-7-18(8-6-17)25(28)29)15-21-20-9-11-26-24(20)16(2)13-23(21)30-3/h5-9,11,13,19,22,26H,4,10,12,14-15H2,1-3H3,(H,28,29)/t19-,22-/m0/s1