InChI=1/C16H19N3O/c1-10-4-7-12-13(9-10)18-15(17-12)14-3-2-8-19(14)16(20)11-5-6-11/h4,7,9,11,14H,2-3,5-6,8H2,1H3,(H,17,18)/t14-/m1/s1/f/h18H E1F2C371489EFC17