InChI=1/C18H21BrN4O2/c1-11-7-14(19)8-12(2)16(11)22-18(25)17(24)21-10-13-5-6-20-15(9-13)23(3)4/h5-9H,10H2,1-4H3,(H,21,24)(H,22,25)/f/h21-22H 9F3426FA3367A56A