(1R,2R,4aS,6R,8aR)-6-Bromo-1-(2-hydroxy-ethyl)-2,5,5,8a-tetramethyl-decahydro-naphthalen-2-ol

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

(+/-)-aplysin 20

Acetic acid (1R,2S,4aR,6S,8aS)-6-bromo-1-(2-hydroxy-ethyl)-2,5,5,8a-tetramethyl-decahydro-naphthalen-2-yl ester

Chloro-acetic acid 2-((1R,2S,4aR,6S,8aS)-6-bromo-2-hydroxy-2,5,5,8a-tetramethyl-decahydro-naphthalen-1-yl)-ethyl ester