Hb. Lazrek et al., SYNTHESIS OF THE NUCLEOTIDE ANALOG - (R,S)-9-[1-(2-HYDROXYETHYLTHIO)-2-PHOSPHONYLETHYL] ADENINE, Nucleosides & nucleotides, 13(1-3), 1994, pp. 811-817
The acyclic nucleotide analogue (R,S)-9-1-(2-hydroxyethylthio)-2-phos
phonylethyl adenine HETPEA, 4 was prepared by coupling the adenine
potassium salt with diethyl ethynylphosphonate followed by condensatio
n of the product with 2-mercaptoethanol.