InChI=1/C17H19N3O/c1-20-16-14(15(19-20)11-7-3-2-4-8-11)12-9-5-6-10-13(12)17(21)18-16/h2-4,7-8,12-13H,5-6,9-10H2,1H3,(H,18,21)/t12-,13-/m0/s1/f/h18H 0C9CA4418A30C412