Results 1 to 10 of about 120,912 (221)
Studies in pyrimidine metabolism [PDF]
Journal 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
openalex +6 more sources
A Search for Interstellar Pyrimidine [PDF]
Mon.Not.Roy.Astron.Soc.345:650,2003, 2003 We have searched three hot molecular cores for submillimeter emission from the nucleic acid building-block pyrimidine. We obtain upper limits to the total pyrimidine (beam-averaged) column densities towards Sgr B2(N), Orion KL and W51 e1/e2 of 1.7E+14 cm^{-2}, 2.4E+14 cm^{-2} and 3.4E+14 cm^{-2}, respectively.
H. C. Huang +6 more
arxiv +5 more sources
Interplay of protection and damage through intermolecular processes in the decay of electronic core holes in microsolvated organic molecules. [PDF]
Phys Chem Chem PhysSoft X-ray irradiation of molecules causes electronic core-level vacancies through photoelectronemission. In light elements, such as C, N, or O, which are abundant in the biosphere, these vacancies predominantly decay by Auger emission, leading inevitably to dissociative multiply charged states.
Bloß D +13 more
europepmc +2 more sources
In Plane Vibration of Pyrimidine and some Deuterated Pyrimidines [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 1991 On the basis of 102 assigned frequencies to in plane vibrations of pyrimidine, pyrimidine-2-d2, pyrimidine-2, 5-d2, pyrimidine-4,6-d2, pyrimidine-2,4,6-d3 and pyrimidine-d4, 35 valance force field constants including 14 principals and 21 interaction ...
F. Milani Nejad,
doaj +2 more sources
Pyrimidine Biosynthesis and Ribonucleoside Metabolism in Species of Pseudomonas
Fermentation, 2023 Pyrimidine biosynthesis and ribonucleoside metabolism in species of Pseudomonas was the focus of this review, in relation to their current taxonomic assignments in different homology groups.
Thomas P. West
doaj +1 more source
Acta Chimica Slovenica, 2021 Many novel thiazole derivatives were designed and synthesized using 4-phenylthiazol-2-amine. The reactivity of the latter compound toward different chemical reagents was studied.
Amira E. M. Abdallah +3 more
doaj +1 more source
Pyrimidine biosynthesis is not an essential function for Trypanosoma brucei bloodstream forms. [PDF]
PLoS ONE, 2013 African trypanosomes are capable of both pyrimidine biosynthesis and salvage of preformed pyrimidines from the host, but it is unknown whether either process is essential to the parasite.Pyrimidine requirements for growth were investigated using strictly
Juma A M Ali +5 more
doaj +1 more source
Synthesis, characterization and theoretical studies of novel pyrimidine derivatives as potential corrosion inhibitors [PDF]
Journal of the Serbian Chemical Society, 2020 In this study, five new pyrimidine derivatives were synthesized and characterized by characterization methods such as 1H-NMR, 13C-NMR, FT- -IR and elemental analysis.
Akbas Esvet, Yildiz Ela, Erdogan Ahmet
doaj +1 more source
Chemical Insights Into the Synthetic Chemistry of Quinazolines: Recent Advances
Frontiers in Chemistry, 2021 In medicinal chemistry, one of the most significant heterocyclic compounds are quinazolines, possessing broad range of biological properties such as anti-bacterial, anti-fungal, anti-HIV, anti-cancer, anti-inflammatory, and analgesic potencies.
Muhammad Faisal, Aamer Saeed
doaj +1 more source
Molecules, 2020 A series of 34 new pyrimido[2,1-c][1,2,4]triazine-3,4-diones were synthesized and fully characterized using IR, NMR, MS, and microanalytical analysis. In vitro investigation of 12 compounds of this series revealed promising antimicrobial activity of the ...
Islam H. El Azab, Nadia A.A. Elkanzi
doaj +1 more source