InChI=1/C16H21N3O3/c1-11-6-8-19(9-7-11)13-4-2-12(3-5-13)17-15(20)14-10-22-16(21)18-14/h2-5,11,14H,6-10H2,1H3,(H,17,20)(H,18,21)/t14-/m1/s1/f/h17-18H A4767B96AE49B37A