ent-isoconcinndiol

(3aR,5aS,7R,9aR,9bR)-7-Bromo-3a,6,6,9a-tetramethyl-decahydro-naphtho[2,1-b]furan-2-one

((1R,2R,4aS,6R,8aR)-6-Bromo-2-hydroxy-2,5,5,8a-tetramethyl-decahydro-naphthalen-1-yl)-acetic acid