((2S,2aR,2a1R,4S,4aS,6aS,7S)-7-bromo-2,2a,2a1,3,4,6a-hexahydro-4aH-2,4-methanopentaleno[1,6-bc]furan-4a-yl)methanol

((1S,3aR,4R,7S,7aR)-1-hydroxy-1,4,7,7a-tetrahydro-3aH-4,7-methanoinden-3a-yl)methyl acetate

(2S,2aR,2a¹R,4S,4aR,5R,6R,6aR,7S)-7-bromo-4a-(((tert-butyldimethylsilyl)oxy)methyl)octahydro-2H-2,4-methanopentaleno[1,6-bc]furan-5,6-diol

(((2S,2aR,2a1R,4S,4aR,4bR,7aS,7bR,8S)-8-bromo-6,6-dimethyloctahydro-4aH-2,4-methanofuro[2',3',4':3,4]pentaleno[1,2-d][1,3]dioxol-4a-yl)methoxy)(tert-butyl)dimethylsilane