InChI=1/C13H15Br2N3O2/c14-10-3-4-11(15)13(20)9(10)7-16-17-12(19)8-18-5-1-2-6-18/h3-4,7,20H,1-2,5-6,8H2,(H,17,19)/b16-7-/f/h20h,17-18H 7F4E77292509189D