4,4-二甲氧基乙酰乙酸甲酯

6-chloro-1-iodohex-2-yne

2-(6-chlorohex-2-yn-1-yl)-4,4-dimethoxybutane-1,3-diol

methyl 9-hydroxy-8-(hydroxymethyl)-10,10-dimethoxydec-5-ynoate

methyl 8-chloro-2-(2,2-dimethoxyacetyl)oct-4-ynoate