InChI=1/C15H17N3O2/c1-3-8-16-15(20)10(2)17-12-5-6-13-11(9-12)4-7-14(19)18-13/h1,5-6,9-10,17H,4,7-8H2,2H3,(H,16,20)(H,18,19)/t10-/m1/s1/f/h16,18H 41E686E915908F4F