Results 11 to 20 of about 73,935 (281)
Future Journal of Pharmaceutical Sciences, 2016 Pyrazolo pyrimidines are fused heterocyclic ring systems which known as bioisosteres of adenine, that are necessary for every aspect of cell life. Pyrazolo[1,5-a]pyrimidines derivatives have been explored for their inhibitory activity towards a variety ...
Nasser S.M. Ismail +3 more
doaj +1 more source
Synthesis of pyrimidines by Fe3O4@SiO2-L-proline nanoparticles
Main Group Metal Chemistry, 2020 Fe3O4@SiO2-L-proline nanoparticles have been used as an effective catalyst for the preparation of pyrimidines by three-component reactions of 1,3-dimethylbarbituric acid, aromatic aldehydes and 4-methyl aniline or 4-methoxy aniline under reflux condition
Safaei-Ghomi Javad, Samadi Zahra
doaj +1 more source
Computational Estimation of the Acidities of Pyrimidines and Related Compounds
Molecules, 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
Electronic Spectroscopy of Isolated DNA Polyanions [PDF]
, 2018 In solution, UV-vis spectroscopy is often used to investigate structural changes in biomolecules (i.e., nucleic acids), owing to changes in the environment of their chromophores (i.e., the nucleobases).
Daly, Steven +3 more
core +3 more sources
Design and Synthesis of New Pyrimidine-Quinolone Hybrids as Novel hLDHA Inhibitors
Pharmaceuticals, 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
Sonosynthesis of Pyrimidines as Antimicrobial Agents Using Nano-Fe3O4–L-cysteine [PDF]
Nanochemistry Research, 2022 Nano-Fe3O4–L-cysteine as a superior catalyst was applied for the synthesis of pyrimidine-trions by three-component reactions of N,N-dimethylbarbituric acid, benzaldehydes and para-methyl aniline or para-methoxy aniline under ultrasonic irradiation in ...
Hossein Shahbazi-Alavi +1 more
doaj +1 more source
Molecules, 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
Preparation and Characterization of Derivatives of Pyrimidines in two ways Clascical and Microwave [PDF]
مجلة جامعة الانبار للعلوم الصرفة, 2017 This study includes synthesis and characterization of new pyrimidine derivatives (R or Ar-2,3,4,6,7,8-hexahydroquinazolin-5(1H)-one), via of the reaction from cyclohexane-1,3-dione with aldehyde derivatives and guanidinehydrochlorid.
Waleed AL-Hiti +2 more
doaj +1 more source
Diversity oriented synthesis : substitution at C5 in unreactive pyrimidines by Claisen rearrangement and reactivity in nucleophilic substitution at C2 and C4 in pteridines and pyrido[2,3-d]pyrimidines [PDF]
, 2011 Diversity oriented synthesis of fused pyrimidines leads to scaffolds with many biological activities. In the case of the preparation of pyrido[2,3-d]pyrimidines from 2-alkylthiopyrimidines, the formation of a new carbon-carbon bond at C5 is required, a ...
Adcock, Jonathan Paul +3 more
core +1 more source
Journal of Fungi, 2020 The first characterized antifungal in the orotomide class is olorofim. It targets the de novo pyrimidine biosynthesis pathway by inhibiting dihydroorotate dehydrogenase (DHODH).
Saskia du Pré +7 more
doaj +1 more source