名称:
Efficient Transformation of Thymidine into 2′,3′-Didehydro-2′,3′-Dideoxy-Thymidine (D4T) Involving Opening of a 2,3′-Anhydro Derivative by Phenylselenol
摘要:
A new, high-yielding method for introduction of the selenophenyl residue at the 3'- position of thymidine is reported. This reaction avoided any strongly basic or reductive reagent, thus allowing the use of benzoate ester as a protective group at O-5'. Further oxidation-elimination sequence followed by basic deprotection afforded 2',3'-didehydro-2',3'-dideoxythymidine (D4T) in 67.5 % overall yield from thymidine.