InChI=1/C27H26N2O4/c1-4-33-24-13-9-22(10-14-24)29(27(31)19-7-11-23(32-3)12-8-19)17-21-16-20-6-5-18(2)15-25(20)28-26(21)30/h5-16,21H,4,17H2,1-3H3/p+1/t21-/m1/s1/fC27H27N2O4/h28H/q+1 8CE3DE36FC5F0E8D