InChI=1/C18H23N3O2/c1-10-3-6-13(7-4-10)20-18(22)17-11(2)15-14(23-17)8-5-12-9-19-21-16(12)15/h9-10,13H,3-8H2,1-2H3,(H,19,21)(H,20,22)/f/h20-21H 813E51AD15F295FD