3-[(2S,5R,6S)-5-(tert-Butyl-dimethyl-silanyloxy)-3-dimethoxymethyl-6-methyl-5,6-dihydro-2H-pyran-2-yl]-propionaldehyde 在
4-二甲氨基吡啶 作用下,
以
四氢呋喃 为溶剂,
反应 1.5h,
生成 Acetic acid (E)-1-{2-[(2S,5R,6S)-5-(tert-butyl-dimethyl-silanyloxy)-3-dimethoxymethyl-6-methyl-5,6-dihydro-2H-pyran-2-yl]-ethyl}-penta-2,4-dienyl ester