5′-Halogeno-2′,3′-cyclic sulphite isomers in the preparation of 5′-halogeno nucleosides. Synthesis of 5′-deoxyuridine and 5′-deoxy-5-fluorouridine
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Decreased immunosuppression associated with antitumor activity of 5-deoxy-5-fluorouridine compared to 5-fluorouracil and 5-fluorouridine.
5-Fluorouracil (5-FUra), 5-deoxy-5-fluorouridine (5'dFUrd), and 5-fluorouridine were compared for their relative antitumor activity, their capacity to inhibit leukocyte exudation and macrophage (macrophage) killing of tumor cells in vivo and in vitro, and their ability to induce leukopenia and monocytopenia. 5'dFUrd was less toxic than 5-FUra and exhibited anti-Ehrlich ascites activity over a w...
متن کاملATTEMPTED SYNTHESIS OF 5' - DEOXY - 5' - PHOSPHONO - ISOCYTIDINE SYNTHESIS OF PHOSPHONIC ACID DERIVATIVES OF ACYCLO - NUCLEOSIDES. PREPARATION OF 1- ?- D- ARABINOFURANOSYL PYRIMIDINES
The synthesis of 5' - deoxynucleoside 5' - phosphonates which contains a 5' - CP bond in place of the 5' -COP bond of the naturally occuring nucleotides is described. The preparation of phosphonate derivatives of acyclo - nucleosides and a simple method for the conversion of 1-? -D-ribofuranosyl pyrimidines to the corresponding 1-? -D-arabinofuranosyl pyrimidines are also explained
متن کاملattempted synthesis of 5' - deoxy - 5' - phosphono - isocytidine synthesis of phosphonic acid derivatives of acyclo - nucleosides. preparation of 1- ?- d- arabinofuranosyl pyrimidines
the synthesis of 5' - deoxynucleoside 5' - phosphonates which contains a 5' - cp bond in place of the 5' -cop bond of the naturally occuring nucleotides is described. the preparation of phosphonate derivatives of acyclo - nucleosides and a simple method for the conversion of 1-? -d-ribofuranosyl pyrimidines to the corresponding 1-? -d-arabinofuranosyl pyrimidines are also ex...
متن کاملAnticachectic activity of 5'-deoxy-5-fluorouridine in a murine tumor cachexia model, colon 26 adenocarcinoma.
Murine colon 26 adenocarcinoma causes a progressive weight loss and physiological changes associated with cachexia when it grows to a certain size. By the use of this tumor model several types of cytostatics were examined for their ability to alleviate cachexia. Among them, 5'-deoxy-5-fluorouridine could reverse a progressive weight loss and improve hypoglycemia, hyperglucocorticism, and hepati...
متن کاملInterferon-α Enhances 5′-Deoxy-5-Fluorouridine-Induced Apoptosis by ERK-Dependant Upregulation of Thymidine Phosphorylase
5-Florouracil (5-FU) is the basic agent used in the treatment of gastric cancer. Capecitabine, a prodrug of 5-FU, displays increased antitumor efficacy compared with 5-FU in the clinic. 5'-Deoxy-5-fluorouracil (5'-DFUR), the metabolite of capecitabine, is converted to 5-FU by the enzyme thymidine phosphorylase (TP), which is present at high concentrations in human tumors. In this study, we inve...
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ژورنال
عنوان ژورنال: Nucleic Acids Research
سال: 1978
ISSN: 0305-1048,1362-4962
DOI: 10.1093/nar/5.3.1029