InChI=1/C20H21N3O/c24-20-17-6-7-18-19(16(17)9-11-22-20)15(13-23-18)8-10-21-12-14-4-2-1-3-5-14/h1-7,13,21,23H,8-12H2,(H,22,24)/f/h22H 621E60778D8FF8FB