Results 11 to 20 of about 172,292 (284)

STUDIES IN PYRIMIDINE METABOLISM [PDF]

open access: greenJournal of Biological Chemistry, 1920
By partial hydrolysis of yeast nucleic acid, preparations containing pyrimidines as the only nitrogenous constituents were prepared and administered to rabbits. Uracil nucleoside when administered per os, subcutaneously or intraperitoneally caused an increased excretion of urea often much more than enough to account for the nitrogen administered.
Darrell M. Wilson
openaire   +6 more sources

Review on the Synthesis and Therapeutic Potential of Pyrido[2,3-d], [3,2-d], [3,4-d] and [4,3-d]pyrimidine Derivatives

open access: yesPharmaceuticals, 2022
The objective of this review is to list the structures composed of a pyridopyrimidine moiety which have shown a therapeutic interest or have already been approved for use as therapeutics.
Joana F. Campos   +2 more
doaj   +1 more source

An overview on synthesis and biological activity of pyrimidines

open access: yesWorld Journal of Advanced Research and Reviews, 2022
Pyrimidines represent an important class of heterocycles containing two nitrogen atoms at position 1 and 3 of the six membered ring show wide range of biological activities.
N. A. A. El-tawab   +5 more
semanticscholar   +1 more source

Functional Pyrazolo[1,5-a]pyrimidines: Current Approaches in Synthetic Transformations and Uses As an Antitumor Scaffold

open access: yesMolecules, 2021
Pyrazolo[1,5-a]pyrimidine (PP) derivatives are an enormous family of N-heterocyclic compounds that possess a high impact in medicinal chemistry and have attracted a great deal of attention in material science recently due to their significant ...
Andres Arias-Gómez   +2 more
semanticscholar   +1 more source

CuO/ZnO@N-GQDs@NH2 nanocomposite as superior catalyst for the synthesis of pyrimidine-triones [PDF]

open access: yesNanochemistry Research, 2021
CuO / ZnO@N - GQDs@NH2 nanocomposite (copper (II) oxide / zinc oxide @ Nitrogen-doped graphene quantum dots @ aminated) as superior catalyst has been applied for the synthesis of pyrimidine - trions by three-component reactions of N, N ...
Hossein Shahbazi-Alavi   +2 more
doaj   +1 more source

One‐pot and two‐pot methods for chalcone derived pyrimidines synthesis and applications

open access: yesJournal of Heterocyclic Chemistry, 2021
Chalcone-derived pyrimidine is a well-known heterocyclic compound that is commonly present in ribonucleic acid (RNA) and deoxyribonucleic acid (DNA) bio-isosteres.
S. Farooq, Z. Ngaini
semanticscholar   +1 more source

Synthesis of pyrimidines using nano-NiZr4 (PO4)6 as a retrievable and robust heterogeneous catalyst [PDF]

open access: yesNanochemistry Research, 2020
Nano-NiZr4 (PO4)6 has been used as an effective and retrievable heterogeneous catalyst for the synthesis of pyrimidines through the reaction of benzaldehydes, guanidinehydrochloride and malononitrile under reflux conditions in ethanol.
Hossein Shahbazi-Alavi   +1 more
doaj   +1 more source

Fighting Antibiotic Resistance: New Pyrimidine-Clubbed Benzimidazole Derivatives as Potential DHFR Inhibitors

open access: yesMolecules, 2023
The present work describes the design and development of seventeen pyrimidine-clubbed benzimidazole derivatives as potential dihydrofolate reductase (DHFR) inhibitors.
M. Akiful Haque   +11 more
doaj   +1 more source

Design and Synthesis of New Pyrimidine-Quinolone Hybrids as Novel hLDHA Inhibitors

open access: yesPharmaceuticals, 2022
A battery of novel pyrimidine-quinolone hybrids was designed by docking scaffold replacement as lactate dehydrogenase A (hLDHA) inhibitors. Structures with different linkers between the pyrimidine and quinolone scaffolds (10-21 and 24–31) were studied in
Iván Díaz   +3 more
doaj   +1 more source

Computational Estimation of the Acidities of Pyrimidines and Related Compounds

open access: yesMolecules, 2022
Pyrimidines are key components in the genetic code of living organisms and the pyrimidine scaffold is also found in many bioactive and medicinal compounds. The acidities of these compounds, as represented by their pKas, are of special interest since they
Rachael A. Holt, Paul G. Seybold
doaj   +1 more source

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