diethyl(phenylethynyl)aluminum 、
2',5'-bis-O-tert-butyldimethylsilyl-3'-ketouridine 以
二氯甲烷 为溶剂,
以58%的产率得到1-[(2R,3R,4S,5R)-3-(tert-Butyl-dimethyl-silanyloxy)-5-(tert-butyl-dimethyl-silanyloxymethyl)-4-hydroxy-4-phenylethynyl-tetrahydro-furan-2-yl]-1H-pyrimidine-2,4-dione