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Xanthines, 7-hydroxy-, syntheses

Xanthine, 8-ethyl-synthesis, 5, 574 Xanthine, 9-hydroxy-8-methyl-synthesis, S, 596 Xanthine, 1-methyl-deuterium-hydrogen exchange, S, 527 methylation, S, 533 occurrence, S, 598 reduction, 5, 541 synthesis, S, 589 Xanthine, 3-methyl-deuterium-hydrogen exchange, S, 528 methylation, S, 533 reduction, S, 541 synthesis, S, 595 Xanthine, 7-methyl-deuterium-hydrogen exchange alkylation, S, 527 reduction, S, 541 synthesis, S, 587 Xanthine, 8-methyl-synthesis, S, 574 Xanthine, 9-methyl-methylation, S, 533 nitration, 5, 538... [Pg.923]

At the present time, we just report some experimental results of a study on the mechanism of action of allopurinol (U-hydroxy-pyrazolo (3, -d ) pyrimidine) and thiopurinol k thiopyrazolo (3, d) pyrimidine) on de novo biosynthesis of uric acid. In this present work, we have compared effect of alio and thiopurinol on oxypurine (xanthine and hypoxanthine) urinary excretion with their rate of synthesis of ribonucleotides in vitro by erythrocyte hemolysate in some particular enzymatic deficiencies (hypoxanthine-guanine phosphoribosyltransferase HGPRT, adenine phosphoribosyl-transferase APRT and xanthinuria). [Pg.284]

See other pages where Xanthines, 7-hydroxy-, syntheses is mentioned: [Pg.95]    [Pg.419]    [Pg.1119]    [Pg.362]    [Pg.181]    [Pg.87]    [Pg.153]   
See also in sourсe #XX -- [ Pg.55 , Pg.167 ]



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