| 摘要 |
A process for the production of a 5-substituted derivative of a 2,3 min -anhydro-2 min -deoxyuridine preferably corresponding to the following general formula: <CHEM> wherein R<1> represents H, alkyl, aryl, halogeno or CF3; characterised in that it comprises heating a 5-substituted derivative of a 2 min -deoxyuridine preferably corresponding to the following general formula: <CHEM> wherein R<1> is as defined above; in the presence of a sulphite transfer reagent and preferably a solvent is disclosed. This process improves the production of valuable intermediates and hence facilitates and reduces the cost of production of pharmacologically-interesting compounds. |
