InChI=1/C18H21N3O2/c1-18(8-2-3-9-18)12-20-16(22)14-4-5-15(21-17(14)23)13-6-10-19-11-7-13/h4-7,10-11H,2-3,8-9,12H2,1H3,(H,20,22)(H,21,23)/f/h20-21H 340652D4C3E62509