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Synthesis of pyrimidine analogues of the nucleoside antibiotic ascamycin

✍ Scribed by Castro-Pichel, Julia ;García-López, M. Teresa ;De las Heras, Federico G. ;Herranz, Rosario


Publisher
John Wiley and Sons
Year
1988
Tongue
English
Weight
564 KB
Volume
1988
Category
Article
ISSN
0947-3440

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A facile synthesis of ascamycin and rela
✍ Julia Castro-Pichel; María Teresa García-López; Federico G. De las Heras 📂 Article 📅 1987 🏛 Elsevier Science 🌐 French ⚖ 593 KB

The nucleoside antibiotic ascamycin [2-chloro-5'-g-[I+(k-alanyljsulfamoyl) adenosine (l)] has been synthesized by an improved procedure involving the direct condensation of 2-chloro-2',3'-~-isopropylidene-5'-~-sulfamoyladenosine (3) with Bock-Ala-O% in DMF and in the presence of DBU. followed by rem

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## Abstract A concise route to nucleoside β‐hydroxyphosphonate analogues is described. The use of a nucleoside β‐ketophosphonate as the key intermediate allowed both the (__R__) and (__S__) isomers of β‐hydroxyphosphonate analogues in the pyrimidine series to be accessed. Such derivatives may be co