N'-{9-[(1R,2R,4R,5R)-4-(tert-Butyl-dimethyl-silanyloxymethyl)-3,6-dioxa-bicyclo[3.1.0]hex-2-yl]-6-oxo-6,9-dihydro-1H-purin-2-yl}-N,N-dimethyl-formamidine 在
samarium diiodide 、
溴乙酸乙酯 作用下,
以
四氢呋喃 为溶剂,
反应 2.0h,
以81%的产率得到N'-{9-[(2R,3S,4R,5R)-5-(tert-Butyl-dimethyl-silanyloxymethyl)-3-hydroxy-4-iodo-tetrahydro-furan-2-yl]-6-oxo-6,9-dihydro-1H-purin-2-yl}-N,N-dimethyl-formamidine