InChI=1/C28H28N2O4/c1-4-19-7-9-21(10-8-19)25-24(26(31)22-11-13-23(14-12-22)34-18(2)3)27(32)28(33)30(25)17-20-6-5-15-29-16-20/h5-16,18,25,32H,4,17H2,1-3H3/p-1/t25-/m0/s1/fC28H27N2O4/h32h/q-1 E24F4D6FA4D195FE