InChI=1S/C27H21N3O3/c1-32-18-9-12-22-25(16-18)29-14-13-26(22)33-19-10-11-20-17(15-19)5-4-6-21(20)27(31)30-24-8-3-2-7-23(24)28/h2-16H,28H2,1H3,(H,30,31)