InChI=1S/C26H25N3O2/c1-3-18-8-11-21(12-9-18)31-16-19-6-4-5-7-22(19)26(30)29-20-10-13-25-23(15-20)24(27)14-17(2)28-25/h4-15H,3,16H2,1-2H3,(H2,27,28)(H,29,30)