138760-37-9Relevant academic research and scientific papers
Preparation method for emtricitabine isomer
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, (2019/04/26)
The invention discloses a preparation method for an embritabine isomer. The preparation method comprises the following steps: with Solketal as a starting material, allowing the Solketal to undergo a six-step reaction of esterification, hydrolysis, oxidation, condensation cyclization, acetylation and glycosylation condensation so as to synthesize four mixture intermediates of emtricitabine; and splitting the four isomer intermediates into a cis-isomer mixture and a trans-isomer mixture through a chiral reagent. According to the invention, by adoption of a simple starting material, a mixture forsplitting key intermediates of four optical isomers of the emtricitabine is synthesized through the six-step reaction, and chiral acid is utilized to split the four isomers into a mixture of cis andtrans isomers, so the preparation method provided by the invention has the advantages of simple and convenient operation, high yield and high isomer chiral purity.
Synthesis of new 2,5-substituted 1,3-oxathiolanes. Intermediates in nucleoside chemistry
Kraus,Attardo
, p. 1046 - 1048 (2007/10/02)
A synthetic approach for new 2-hydroxymethyl-5-ethoxy-1,3-oxathiolane derivatives is described. These heterocyclic five membered rings are suitably substituted to be potential sugar candidates in nucleoside chemistry.
