Results 21 to 30 of about 197,991 (343)

Anti-Covid-19 Drug Analogues: Synthesis of Novel Pyrimidine Thioglycosides as Antiviral Agents Against SARS-COV-2 and Avian Influenza H5N1 Viruses

open access: yesACS Omega, 2021
A class of pyrimidine thioglycoside analogs (6a–h) were synthesized from a reaction of 2-cyano-3,3-dimercapto-N-arylacrylamide (2a–d) and thiourea to produce the corresponding 4-amino-2-mercapto-N-arylpyrimidine-5-carboxamide derivatives (3a–d), and ...
M. Abu-Zaied, G. Elgemeie, N. Mahmoud
semanticscholar   +1 more source

Controlled Release of Pyrimidine Compound Using Polymeric Coated ZIF-8 Metal-Organic Framework as Glucagon-Like Peptide-1 Receptor Agonist Carrier

open access: yesMolecules, 2020
This work demonstrates synthetic strategies for the incorporation of a synthesized pyrimidine glucagon-like peptide-1 (GLP-1) agonist into alginate-coated ZIF-8.
Shaikha S. AlNeyadi   +6 more
doaj   +1 more source

Design, synthesis, and biological investigation of oxadiazolyl, thiadiazolyl, and pyrimidinyl linked antipyrine derivatives as potential non-acidic anti-inflammatory agents

open access: yesJournal of Enzyme Inhibition and Medicinal Chemistry, 2023
A novel series of 12 antipyrine derivatives containing 1,3,4-oxadiazoles (4a-d), 1,3,4-thiadiazoles (6a-d), and pyrimidines (8a-d), was preparedand assessed for its potential in vitro COX-2 inhibitors.
Mohammad M. Al-Sanea   +11 more
doaj   +1 more source

Synthesis of Pyrimidines and Condensed Pyrimidines [PDF]

open access: yesBulletin of the Chemical Society of Japan, 1973
Abstract A new one-step synthesis of pyrimidines and condensed pyrimidines by heating carboxamides or cyclic lactams with formamide in the presence of POCl3 in a sealed tube is described.
openaire   +3 more sources

Chemical Insights Into the Synthetic Chemistry of Quinazolines: Recent Advances

open access: yesFrontiers 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

tert-Butyl 4-{3-[6-(4-methoxyphenyl)-2-methylpyrimidin-4-yl]quinolin-2-yl}piperazine-1-carboxylate

open access: yesIUCrData, 2018
The asymmetric unit of the title compound, C30H33N5O3, contains two independent molecules, A and B. In molecule A, the tert-butyl 4-methylpiperazine-1-carboxylate group was refined as disordered over two sets of sites with an occupancy ratio of 0.821 (4):
Sumati Anthal   +6 more
doaj   +1 more source

PURINE AND PYRIMIDINE ANTAGONISM IN A PYRIMIDINE-DEFICIENT MUTANT OF NEUROSPORA [PDF]

open access: yesJournal of Biological Chemistry, 1948
The present study is concerned with the inhibition of growth of the pyrimidine-deficient Neurospora mutant, No. 1298, by the naturally occurring purine ribonucleotides and ribonucleosides. This experimentally produced strain, unlike the wild type, is unable to synthesize the pyrimidine ribonucleosides on a medium containing inorganic salts ...
Pierce, John G., Loring, Hubert S.
openaire   +3 more sources

SPIRO-PYRIMIDINES. II. CYCLOHEXANE-1,5-SPIRO-PYRIMIDINES. [PDF]

open access: yesJournal of the American Chemical Society, 1921
n ...
Dox, Arthur W., Yoder, Lester
openaire   +5 more sources

Pyrimidine biosynthesis is not an essential function for Trypanosoma brucei bloodstream forms.

open access: yesPLoS ONE, 2013
BackgroundAfrican 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.Methodology/principal findingsPyrimidine requirements for
Juma A M Ali   +5 more
doaj   +1 more source

2-Amino-5-methyl-1,2,4-triazolo[1,5-a]pyrimidin-7(4H)-one

open access: yesIUCrData, 2018
The asymmetric unit of the title compound, C6H7N5O, consists of two molecules with almost identical conformations. In the crystal, inversion dimers linked by pairs of N—H...N hydrogen bonds occur for both molecules; further N—H...N and N—H...O hydrogen ...
Sanae Lahmidi   +5 more
doaj   +1 more source

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