2,2-dimethylpent-4-yn-1-al

(methoxymethyl)triphenylphosphonium chloride

1-methoxy-3,3-dimethylhex-1-en-5-yne

3,3-二甲基戊烷-1,5-二醇

5-(tert-butyl-dimethyl-silanyloxy)-3,3-dimethyl-pentanal