Results 21 to 30 of about 197,991 (343)
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
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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
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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
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Synthesis of Pyrimidines and Condensed Pyrimidines [PDF]
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.
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Chemical Insights Into the Synthetic Chemistry of Quinazolines: Recent Advances
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
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tert-Butyl 4-{3-[6-(4-methoxyphenyl)-2-methylpyrimidin-4-yl]quinolin-2-yl}piperazine-1-carboxylate
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
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PURINE AND PYRIMIDINE ANTAGONISM IN A PYRIMIDINE-DEFICIENT MUTANT OF NEUROSPORA [PDF]
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.
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SPIRO-PYRIMIDINES. II. CYCLOHEXANE-1,5-SPIRO-PYRIMIDINES. [PDF]
n ...
Dox, Arthur W., Yoder, Lester
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Pyrimidine biosynthesis is not an essential function for Trypanosoma brucei bloodstream forms.
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
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2-Amino-5-methyl-1,2,4-triazolo[1,5-a]pyrimidin-7(4H)-one
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
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