InChI=1/C26H28N2O6/c29-23(15-33-25(31)21-3-1-13-27-21)19-9-5-17(6-10-19)18-7-11-20(12-8-18)24(30)16-34-26(32)22-4-2-14-28-22/h5-12,21-22,27-28H,1-4,13-16H2/t21-,22-/m1/s1 0D2FE74B6BFBC34E