InChI=1S/C25H27N3O5/c29-19-9-5-17(6-10-19)14-25(33-32)24(31)28-15-22(18-7-11-20(30)12-8-18)26-21(23(28)27-25)13-16-3-1-2-4-16/h5-12,15-16,21,26,29-30,32H,1-4,13-14H2/t21-,25-/m0/s1