InChI=1/C28H26N2O4/c1-4-33-28(32)21-11-13-24-23(15-21)26(16-25(30-24)20-8-6-5-7-9-20)34-17-27(31)29-22-12-10-18(2)19(3)14-22/h5-16H,4,17H2,1-3H3,(H,29,31)/f/h29H 822B9B42C3EFBD98