InChI=1/C16H19N3O2/c1-9(2)19-15-14(16(21)18-19)12(8-13(20)17-15)11-6-4-10(3)5-7-11/h4-7,9,12H,8H2,1-3H3,(H,17,20)(H,18,21)/t12-/m1/s1/f/h17,21H	3A56928B010B1707