4-allyl-4-methoxymethoxy-2,3-dichlorocyclopent-2-en-1-one

8,9-dichloro-7-prop-2-enyl-1,4-dioxaspiro[4.4]non-8-en-7-ol

[4-(tert-Butyl-dimethyl-silanyloxy)-2,3-dichloro-1-methoxymethoxy-cyclopent-2-enyl]-acetaldehyde

4-allyl-4-(tert-butyldimethylsilyloxy)-1-methoxymethoxy-2,3-dichlorocyclopent-2-ene

(+/-)-4-Hydroxy-4-methoxycarbonylmethyl-2,3-dichloro-1,1-ethylenedioxy-2-cyclopentene