InChI=1/C31H27NO2/c33-29-25-27(21-13-5-1-6-14-21)32-28(22-15-7-2-8-16-22)26(29)31(24-19-11-4-12-20-24)34-30(25)23-17-9-3-10-18-23/h1-20,25-28,30-32H/t25-,26+,27-,28-,30+,31+/m1/s1 FC5659374741B5CA