InChI=1/C16H18N4O3/c17-15-14-13(11-1-3-12(23)4-2-11)6-20(5-10(7-21)8-22)16(14)19-9-18-15/h1-4,6,9-10,21-23H,5,7-8H2,(H2,17,18,19)/f/h17H2 4FA99BA994620493