InChI=1/C26H26N2O4/c29-26(20-6-2-1-3-7-20)14-16-28(17-15-26)18-19-30-21-10-12-22(13-11-21)31-25-27-23-8-4-5-9-24(23)32-25/h1-13,29H,14-19H2 0AF7950B59D12B4D