InChI=1/C18H23BrO2/c1-11-6-12(2)14(18(3,4)10-11)7-13-8-17(21-5)15(19)9-16(13)20/h6,8-9,14,20H,2,7,10H2,1,3-5H3/t14-/m0/s1 6E20F1670AFE8AC4