InChI=1/C16H21N3O/c1-10(2)17-7-5-11-9-19-14-4-3-13-12(15(11)14)6-8-18-16(13)20/h3-4,9-10,17,19H,5-8H2,1-2H3,(H,18,20)/p+1/fC16H22N3O/h17-18H/q+1 4A502DFD43273458