Design, Synthesis, and Evaluation of 6-Carboxyalkyl and 6-Phosphonoxyalkyl Derivatives of 7-Oxo-8-ribitylaminolumazines as Inhibitors of Riboflavin Synthase and Lumazine Synthase
6-carboxyalkyl and 6-phosphonoxyalkyl derivatives of 7-oxo-8-D-ribityllumazine were synthesized as inhibitors of both Escherichia coli riboflavinsynthase and Bacillus subtilis lumazinesynthase. The compounds were designed to bind to both the ribitylpurine binding site and the phosphate binding site of lumazinesynthase. In the carboxyalkyl series, maximum activity against both enzymes was observed with the