InChI=1/C11H14BrNO4/c12-6-1-3-7(4-2-6)13-11-10(16)9(15)8(5-14)17-11/h1-4,8-11,13-16H,5H2/t8-,9+,10+,11-/m0/s1 1B1522CBF859FB3E