InChI=1/C15H16BrN3O2/c1-17-9-5-4-8-12-10(19(3)14(8)9)6-7-11(13(12)16)21-15(20)18-2/h6-7H,4-5H2,1-3H3,(H,18,20)/f/h18H C629608F2ED42D2A