Oxidation of 1,3-dimethyl derivatives of pyrimidine bases with m-chloroperbenzoic acid.

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Abstract

Oxidation of 1, 3-dimethylthymine (1), 1, 3-dimethyluracil (2), and 5-fluoro-1, 3-dimethyluracil (3) with m-chloroperbenzoic acid were investigated. 1 gave the cis diol 5, 6-dihydrothymine derivative (4) stereoselectively. Its stereostructure was definitely determined by an X-ray analysis. 2 afforded 7, 8, and 9, and 3 afforded 8.

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