InChI=1/C21H28BrNO3/c1-4-18(13-24)23-12-16-10-19(22)21(20(11-16)25-5-2)26-14-17-9-7-6-8-15(17)3/h6-11,18,23-24H,4-5,12-14H2,1-3H3/p+1/t18-/m1/s1/fC21H29BrNO3/h23H/q+1 0162F1D77BCA0D16