InChI=1/C18H16BrNO3/c1-20(2)10-13-15(21)8-7-12-17(22)16(23-18(12)13)9-11-5-3-4-6-14(11)19/h3-9,21H,10H2,1-2H3/p+1/b16-9-/fC18H17BrNO3/h20H/q+1 41F979A26BB33BE8