InChI=1/C23H22N2O3/c26-22(18-3-1-2-4-18)25-14-16-5-7-19(8-6-16)23(27)28-21-10-9-17-11-12-24-15-20(17)13-21/h5-13,15,18H,1-4,14H2,(H,25,26)/f/h25H D0BC604CBBD0688E