乙酸酐 、 Hydroxy-((3aR,4R,6S,6aS)-6-hydroxymethyl-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxol-4-yl)-acetic acid methyl ester 在
吡啶 作用下,
生成
Acetoxy-((3aS,4R,6R,6aR)-6-acetoxymethyl-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxol-4-yl)-acetic acid methyl ester