作者:William P. Gallagher、Prashant P. Deshpande、Jun Li、Kishta Katipally、Justin Sausker
DOI:10.1021/ol503095v
日期:2015.1.2
An efficient, stereoselective synthesis of 4'-Ed4T is demonstrated. The synthesis is highlighted by a regioselective TMSOTf-mediated acetal opening, a Claisen rearrangement to set the key 4'-stereocenter as well as the olefin, and a one-pot nonaflation/elimination to deliver the alkyne moiety. The synthesis proceeds in eight steps from 5-methyluridine and occurs in 37% overall yield.