ethyl 3-methyl-5-trimethylsilylpent-2-en-4-ynoate

(2E)-3-bromo-but-2-ene-1-ol

三甲基乙炔基硅

(E)-methyl 3-methyl-5-(trimethylsilyl)pent-2-en-4-ynoate

(E)-3-碘-2-丁烯-1-醇