Aryl <i>H-</i>Phosphonates. 12. Synthetic and <sup>31</sup>P NMR Studies on the Preparation of Nucleoside <i>H-</i>Phosphonothioate and Nucleoside <i>H-</i>Phosphonodithioate Monoesters
Transformation of nucleosideH-phosphonate monoesters into the corresponding H-phosphonothioate and H-phosphonodithioate derivatives and possible side-reactions that may accompany this process were studied using (31)P NMR spectroscopy. These provided new insight into a possible mechanism involved in this transformation and constituted the basis for development of efficient methods for the preparation of nucleoside
MODEL SYNTHESIS OF NUCLEOSIDE BORANOPHOSPHORAMIDATE WITH AMINO ACID FOR PRODRUG PURPOSE
作者:Ping Li、Barbara Ramsay Shaw
DOI:10.1081/ncn-200060244
日期:2005.4.1
A model synthesis of a nucleoside boranophosphoramidate prodrug with (L)-tryptophan methyl ester was accomplished in a one-pot reaction via an H-phosphonate approach. This new type of compound is expected to possess the potent antiviral and anticancer advantages conferred by boranophosphates and normal nucleoside amino acid phosphoramidate.