InChI=1/C19H23N3O2/c1-4-18(23)22-17-11-16(10-7-14(17)3)20-12-19(24)21-15-8-5-13(2)6-9-15/h5-11,20H,4,12H2,1-3H3,(H,21,24)(H,22,23)/f/h21-22H 6447AAE40E2DF24D