InChI=1/C18H19N3O3/c22-16(18-20-10-11-24-18)8-2-1-5-9-19-17(23)15-12-13-6-3-4-7-14(13)21-15/h3-4,6-7,10-12,21H,1-2,5,8-9H2,(H,19,23)/f/h19H B235E536ACFF5FBD