InChI=1/C16H21N5O2/c1-5-12-14(23)17-15(20-18-12)21-19-13(22)10-6-8-11(9-7-10)16(2,3)4/h6-9H,5H2,1-4H3,(H,19,22)(H2,17,20,21,23)/p-1/fC16H20N5O2/h19,21H/q-1 8F2D13C8E83FA4B0