SYNTHESIS AND STUDY OF A 6-AMINO-5-OXO-3H,5H-URACIL AND DERIVATIVES. THE STRUCTURE OF AN INTERMEDIATE PROPOSED IN MECHANISMS OF FLAVIN AND PTERIN OXYGENASES.

Article abstract of DOI:10.1021/ja00352a045

The synthesis of the title compounds has been carried out by peracid oxidation. The structure has been established by **1**5N and **1**3C nmr as well as by other spectral methods. The uracil exists in aqueous solution below pH 9, mainly in its unhydrated