Guanine, Pyrazolo[3,4-<i>d</i>]pyrimidine, and Triazolo[4,5-<i>d</i>]pyrimidine (8-Azaguanine) Phosphonate Acyclic Derivatives as Inhibitors of Purine Nucleoside Phosphorylase
作者:Lilia M. Beauchamp、Joel V. Tuttle、Martha E. Rodriguez、Marcos L. Sznaidman
DOI:10.1021/jm950736k
日期:1996.1.1
Phosphonate acyclic derivates of guanines, pyrazolo[3,4-d]pyrimidines, and triazolo[4,5-d]-pyrimidines (8-azaguanines) are inhibitors of the enzyme purinenucleosidephosphorylase (PNPase) with Ki' values ranging from 0.05 to 1.6 microM. These compounds are enzymatically stable congeners of the potent PNPase inhibitor acyclovir diphosphate (53).
Synthesis of 9-phosphonoalkyl and 9-phosphonoalkoxyalkyl purines: Evaluation of their ability to act as inhibitors of Plasmodium falciparum, Plasmodium vivax and human hypoxanthine–guanine–(xanthine) phosphoribosyltransferases
作者:Michal Česnek、Dana Hocková、Antonín Holý、Martin Dračínský、Ondřej Baszczyňski、John de Jersey、Dianne T. Keough、Luke W. Guddat
DOI:10.1016/j.bmc.2011.11.034
日期:2012.1
purine salvage enzyme, hypoxanthine–guanine–(xanthine) phosphoribosyltransferase [HG(X)PRT], catalyses the synthesis of the purine nucleoside monophosphates, IMP, GMP or XMP essential for DNA/RNA production. In protozoan parasites, such as Plasmodium, this is the only route available for their synthesis as they lack the de novo pathway which is present in human cells. Acyclic nucleoside phosphonates