EFFICIENT TRANSFORMATION OF THYMIDINE INTO 2',3'-DIDEHYDRO-2',3'-DIDEOXY-THYMIDINE (D4T) INVOLVING OPENING OF A 2,3'-ANHYDRO DERIVATIVE BY PHENYLSELENOL
S. Becouarn et al., EFFICIENT TRANSFORMATION OF THYMIDINE INTO 2',3'-DIDEHYDRO-2',3'-DIDEOXY-THYMIDINE (D4T) INVOLVING OPENING OF A 2,3'-ANHYDRO DERIVATIVE BY PHENYLSELENOL, Nucleosides & nucleotides, 14(6), 1995, pp. 1227-1232
A new, high-yielding method for introduction of the selenophenyl resid
ue at the 3'- position of thymidine is reported. This reaction avoided
any strongly basic or reductive reagent, thus allowing the use of ben
zoate ester as a protective group at O-5'. Further oxidation-eliminati
on sequence followed by basic deprotection afforded 2',3'-didehydro-2'
,3'-dideoxythymidine (D4T) in 67.5 % overall yield from thymidine.