methyl 7-[1-(benzenesulfonyl)-3-[tert-butyl(dimethyl)silyl]oxy-2-[3-[tert-butyl(dimethyl)silyl]oxyoct-1-enyl]-5-(dimethylamino)cyclopentyl]hept-5-enoate

Methyl (5Z,13E,8R,9S,11R,12S,15S)-11,15-Bis(tert-butyldimethylsiloxy)-9-[[carbo(2',2',2'-trichloroethoxy)]methylamino]-8-(phenylsulfonyl)-5,13-prostadienoate

Methyl (5Z,13E,8R,11R,12S,15S)-11,15-Bis(tert-butyldimethylsiloxy)-9-(anti-oximino)-8-(phenylsulfonyl)-5,13-prostadienoate

methyl 7-oxohept-5-ynoate

11,15-bis-O-(t-butyldimethylsilyl)-5,6-didehydro-7-hydroxy-PGE2 methyl ester