(1S,2R,3S,4R)-3-[2-(3-carboxy-7-oxabicyclo[2.2.1]hept-2-yl-methyl)phenyl]propionic acid methyl ester 在
dimethyl sulfide borane 、
pyridinium chlorochromate 作用下,
以
四氢呋喃 、
二氯甲烷 为溶剂,
反应 3.5h,
以60%的产率得到(1S,2R,3S,4R)-3-[2-(3-formyl-7-oxabicyclo[2.2.1]hept-2-yl-methyl)phenyl]propionic acid methyl ester