InChI=1S/C17H24BrNO3/c1-4-5-6-15(20)19(16(12(2)3)17(21)22)11-13-7-9-14(18)10-8-13/h7-10,12,16H,4-6,11H2,1-3H3,(H,21,22)/t16-/m0/s1