methanesufonic acid 5-(5-ethynyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-2-[(4-methoxy-phenyl)-diphenyl-methoxymethyl]-tetrahydrofuran-3-yl ester 在
sodium azide 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 16.0h,
以70%的产率得到1-{4-azido-5-[(4-methoxy-phenyl)-diphenyl-methoxymethyl]-tetrahydrofuran-2-yl}-5-ethynyl-1H-pyrimidine-2,4-dione