InChI=1/C26H26N2O4/c1-16-5-9-18(10-6-16)28-22-14-26(2,3)15-23(29)20(22)13-21(25(28)31)24(30)27-17-7-11-19(32-4)12-8-17/h5-13H,14-15H2,1-4H3,(H,27,30)/f/h27H C3163DC15C21AF3A