(1α,2β,4β,5α,6α,7α,8α,9α)-6,9-Bis(phenylsulfonyl)-3-oxatetracyclo<6.1.0.02,4.05,7>nonan

(1α,2α,3α,4β,5α,6α,7α)-(+/-)-2,3-O-Isopropyliden-7-(phenylsulfonyl)-4-(phenylsulfonylmethyl)bicyclo<4.1.o>heptan-2,3,5-triol

(1α,2α,3α,4α,5α,6α,7α,8α)-5,6-O-Isopropyliden-3,8-bis(phenylsulfonyl)tricyclo<5.1.0.02,4>octan-5,6-diol

(1α,2α,3α,4β,5α,6α,7α)-(+/-)-7-(Phenylsulfonyl)-4-(phenylsulfonylmethyl)bicyclo<4.1.0>heptan-2,3,5-triol