id author title date pages extension mime words sentences flesch summary cache txt cord-017041-0zxoq68m Volochnyuk, Dmitriy M. Fluorine-Containing Diazines in Medicinal Chemistry and Agrochemistry 2014-06-13 .txt text/plain 16251 955 47 Herein we give a comprehensive review on the biological activity and synthesis of fluorine containing, pyrimidine, pyrazine and pyridazine derivatives with relevance to medicinal and agrochemistry. Herein we give a comprehensive review on the biological activity and synthesis of fl uorine containing, pyrimidine, pyrazine and pyridazine derivatives with relevance to medicinal and agrochemistry. In an alternative approach, Fluorouracil was prepared by direct fl uorination of different pyrimidine derivatives, including uracil [ 15 ] , cytosine [ 16 ] , and orotic acid [ 17 ] . Early synthesis of Floxuridine commenced from Fluorouracil ( 1 ) which was transformed into its mercury salt 28 and then allowed to react with 2-deoxy-Dribofuranosyl chloride derivative 29 (Scheme 4 ) [ 18 ] . More precisely, Trifl uridine is transformed into α,α,α-trifl uorothymidine monophosphate ( 76 ) by thymidine kinase (Scheme 21 ); similarly to the Fluorouracil derivatives discussed in the previous sections, compound 76 is true inhibitor of thymidylate synthase. ./cache/cord-017041-0zxoq68m.txt ./txt/cord-017041-0zxoq68m.txt