A New Series of 3-Alkyl Phosphate Derivatives of 4,5,6,7-Tetrahydro-1-<scp>d</scp>-ribityl-1<i>H</i>-pyrazolo[3,4-<i>d</i>]pyrimidinedione as Inhibitors of Lumazine Synthase: Design, Synthesis, and Evaluation
hypothetical intermediate in the lumazine synthase-catalyzed reaction were synthesized and evaluated as lumazine synthase inhibitors. The key steps of the synthesis were C-5 deprotonation of 4-chloro-2,6-dimethoxypyrimidine, acylation of the resulting anion, and conversion of the product to a pyrazolopyrimidine with hydrazine. Alkylation of the pyrazolopyrimidine with a substituted ribityl iodide and