InChI=1/C21H27BrO3/c1-13-11-20(3,4)19(21(12-13)6-7-21)9-15-8-18(24-5)16(22)10-17(15)25-14(2)23/h8,10,12,19H,6-7,9,11H2,1-5H3/t19-/m0/s1 6CC4293D261ED601