Kumamoto Hiroki, Onuma Sayoko, Tanaka Hiromichi
School of Pharmaceutical Sciences, Showa University, Shinagawa-ku, Tokyo, Japan.
Nucleosides Nucleotides Nucleic Acids. 2003 May-Aug;22(5-8):767-9. doi: 10.1081/NCN-120022630.
Three methods are described for the introduction of a tributylstannyl group to the sp2-carbon of 2',3'-didehydro-2',3'-dideoxy nucleosides (d44Ns). The resulting stannylated products serve as versatile intermediates for the synthesis of d4Ns having various types of carbon-substituent.