2-Diazo-3-oxo-butyric acid (2R,3S,5R)-2-(tert-butyl-diphenyl-silanyloxymethyl)-5-(5-methyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-tetrahydro-furan-3-yl ester 在
dirhodium tetraacetate 作用下,
以
二氯甲烷 为溶剂,
反应 1.5h,
生成 、 1-[(3S,3aR,4R,6R,6aS)-3-Acetyl-6-(tert-butyl-diphenyl-silanyloxymethyl)-2-oxo-hexahydro-furo[3,4-b]furan-4-yl]-5-methyl-1H-pyrimidine-2,4-dione