1-[(3aR,4R,6R,6aR)-6-(hydroxymethyl)spiro[3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxole-2,1'-cyclopentane]-4-yl]-3-(phenylmethoxymethyl)pyrimidine-2,4-dione 、 p-tolyl 2,3,5-tri-O-benzoyl-1-thio-D-ribofuranoside 在
strontium(II) carbonate 、
silver trifluoromethanesulfonate 、
p-toluolsulfenyl bromide 作用下,
以
二氯甲烷 、
1,2-二氯乙烷 为溶剂,
反应 0.5h,
以98%的产率得到[(2R,3R,4R,5R)-5-[[(3aR,4R,6R,6aR)-4-[2,4-dioxo-3-(phenylmethoxymethyl)pyrimidin-1-yl]spiro[3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxole-2,1'-cyclopentane]-6-yl]methoxy]-3,4-dibenzoyloxyoxolan-2-yl]methyl benzoate