(-)-(4aR,6R,8aS)-6α-acetoxy-1,2,3,4,4aβ,5,6,7,8,8a-decahydro-8aβ-methyl-1-oxonaphthalene

Acetic acid (2R,4aS,8aR)-6-bromo-4a-methyl-5-oxo-decahydro-naphthalen-2-yl ester