4,5-Bis(phenylsulfonyl)tetracyclo<3.3.0.02,4.03.6>oct-7-en

(1α,2α,3α,4α,5α,6β,7α,8α)-(+/-)-6-Brom-3,8-bis(phenylsulfonyl)tricyclo<5.1.0.02,4>octan-5-ol-benzoat

(1α,6α,7α,8α)-(+/-)-3,8-Bis(phenylsulfonyl)tetracyclo<5.1.0.02,4.03,5>octan-6-ol

(1α,6α,7α)-(+/-)-3,8α,Bis(phenylsulfonyl)-8β-(trimethylsilyl)tetracyclo<5.1.0.02,4.03,5>octan-6-ol