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Isolation, Synthesis, and Characterization of Impurities and Degradants from the Clofarabine Process
Publikováno v:
Organic Process Research & Development. 12:1229-1237
The identification of clofarabine process impurities and their subsequent isolation, synthesis, and characterization is described. Two isomeric process impurities resulting from N6-attachment of a fluoroarabinose to clofarabine were found. Clofarabin
Autor:
Paul Wolstenholme-Hogg, Tracy Engles, William E. Bauta, Bruce Girard Anderson, Dennis Lovett, William R. Cantrell
Publikováno v:
Nucleosides, nucleotidesnucleic acids. 27(8)
Degradation of clofarabine (3) in 0.9% saline solution at 100 degrees C afforded three degradation products which were determined to be formamidopyrimidines 4-6. Compounds 4 and 5 were assigned as C(1') anomers on the basis of one-dimensional and two