[2(E)-5-(trimethylsilyl)pent-2-en-4-ynyl]triphenylphosphonium bromide

oct-7-en-4-ynoic acid

methyl 6-(oxiran-2-yl)hex-4-ynoate

oct-7-en-4-ynoic acid methyl ester

methyl (S)-7,8-dihydroxyoct-4-ynoate