The synthesis of arginine derivatives of chromone and azauracil

The coupling of N-succinimide esters of 3-7-hydroxy-3-(4-methyl-1,3-thiazol-2-yl)-6-ethyl-4-oxo-4H-chromen-2-yl]propanoic acid and 5-carboxymethyl-6-azauracil with free arginine yielded the corresponding arginine derivatives, which were purified by crystallization. The structures of the compounds were confirmed by 1H NMR spectroscopy. The English version of the paper: Russian Journal of Bioorganic Chemistry, 2006, vol. 32, no. 3; see also http://www.maik.ru.