InChI=1/C18H17BrN4O/c1-11(2)23-10-13(8-9-14(23)24)16-15(12-6-4-3-5-7-12)22-18(20)17(19)21-16/h3-11H,1-2H3,(H2,20,22)/f/h20H2 D13D4934FA1513C7