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(1997)1-(3',5'-di-O-benzoyl-2'-O-mesyl-β-D-xylo-furanosyl)uracil
1-(3',5'-di-O-benzoyl-β-D-xylo-furanosyl)-5-fluorouracil
1-(3',5'-di-O-benzoyl-β-D-xylo-furanosyl)thymine
1-(3',5'-di-O-benzoyl-β-D-xylo-furanosyl)uracil
1-(2'-O-acetamidomercaptocarbonyl-3',5'-di-O-benzoyl-β-D-xylo-furanosyl)uracil