3-endo-hydroxy-5,6-exo-dihydroxy-7-oxabicyclo<2.2.1>heptane-2,2-dicarboxylate acetonide 在
sodium tetrahydroborate 、
potassium carbonate 作用下,
以
甲醇 为溶剂,
反应 0.5h,
生成 diethyl <3α,4α-dihydroxy-5β-(hydroxymethyl)-tetrahydrofur-2β-yl>malonate acetonide 、 diethyl <3α,4α-dihydroxy-5β-(hydroxymethyl)tetrahydrofur-2α-yl>malonate acetonide