Stereoselective Reformatskii–Claisen rearrangement: synthesis of 2′,3′-dideoxy-6′,6′-difluoro-2′-thionucleosides
作者:Feng Zheng、Xingang Zhang、Feng-Ling Qing
DOI:10.1039/b819289h
日期:——
A new approach for the stereoselective synthesis of 2â²,3â²-dideoxy-6â²,6â²-difluoro-2â²-thionucleosides, analogues of highly bioactive L-OddC and 3TC, has been developed viaTMSCl/pyridine induced stereoselective ReformatskiiâClaisen rearrangement of secondary allyl chlorodifluoroacetate and then a regioselective Pummerer reaction to introduce bases.