Showing structure for (3s,4r,5r,7s,8r,11r,12s,15s)-11-bromo-15-(2-bromopropan-2-yl)-12,21-dihydroxy-4-methoxy-4,8,12-trimethyl-16-oxatetracyclo[16.3.1.0³,⁸.0⁵,⁷]docosa-1(22),18,20-trien-17-one