InChI=1/C16H17BrN4O2/c17-12-9-13(18-10-12)14(22)20-21-15(23)19-16(7-4-8-16)11-5-2-1-3-6-11/h1-3,5-6,9-10,18H,4,7-8H2,(H,20,22)(H2,19,21,23)/f/h19-21H 1D67B6F235E5CB5E