InChI=1/C16H22N4O2/c21-15-13-9-17-16(19-6-2-1-3-7-19)18-14(13)11-20(15)10-12-5-4-8-22-12/h9,12H,1-8,10-11H2/t12-/m1/s1 80E5F8084B2E7EFE