InChI=1/C20H23N3O2/c1-24-18-7-3-15(4-8-18)11-12-21-13-17-14-22-23-20(17)16-5-9-19(25-2)10-6-16/h3-10,14,21H,11-13H2,1-2H3,(H,22,23)/f/h23H 9E4B44841B567F89