InChI=1/C16H21N5O3/c1-19-6-4-11(5-7-19)18-14(22)10-8-12-13(17-9-10)20(2)16(24)21(3)15(12)23/h8-9,11H,4-7H2,1-3H3,(H,18,22)/p+1/fC16H22N5O3/h18-19H/q+1 9981F16E506415D5