3-ethyl-2,2,5,5-tetramethyloxolan-3-ol

(E)-2,5-dimethylhex-3-ene-2,5-diol

二丙酮醇

2,5-二甲基-2,5-双(过氧化叔丁基)-3-己炔

(5-acetyloxy-2,5-dimethylhex-3-yn-2-yl) acetate