InChI=1S/C16H19BrO3/c1-10(2)13(18)5-7-16(3)6-4-11-8-14(19)12(17)9-15(11)20-16/h4,6,8-9,13,18-19H,1,5,7H2,2-3H3/t13-,16+/m0/s1