1-(7-tosyloxyhept-4Z-enyl)-4-methyl-2,6,7-trioxabicyclo(2.2.2)octane

1-benzoyloxy-2S-(t-butyldiphenylsilyloxy)dec-4Z-ene

methyl 12(S)-[(tert-butyldiphenylsilyl)oxy]-5(Z),8(Z),10(E),14(Z)-eicosatetraenoate

1-(4-methyl-2,6,7-trioxabicyclo[2.2.2]octyl)-11S-(t-butyldiphenylsilyloxy)nonadeca-4Z,7Z,9E,13Z-tetraene

2,2-di(hydroxymethyl)propyl 12S-(t-butyldiphenylsilyloxy)eicosa-5Z,8Z,10E,14Z-tetraenoate