InChI=1/C13H16Br2N2O3/c1-3-6(2)10(16)12(18)17-11-8(13(19)20)4-7(14)5-9(11)15/h4-6,10H,3,16H2,1-2H3,(H,17,18)(H,19,20)/t6-,10-/m0/s1/f/h16-17H 14C888562EB63C37