002982: InChI=1.12Beta/C21H27BrO3/c1-12(2)13-7-8-15-14(11-13)17(23)16(22)18-20(15,3)9-6-10-21(18,4)19(24)25-5/h1-5H3,6H2,7-8H,9-10H2,11-12H,16H,18H/t16-,18-,20-,21-/m1/s1