InChI=1/C16H21N3O/c1-3-19(4-2)10-15(20)12-7-8-13-14(9-12)18-16(17-13)11-5-6-11/h7-9,11H,3-6,10H2,1-2H3,(H,17,18)/p+1/fC16H22N3O/h17,19H/q+1 CEAAEB45858FE71E