Results 31 to 40 of about 251,884 (333)

Novel One-Pot Synthesis of Pyrazolopyranopyrimidinones Using Newly Produced γ-Alumina Nanoparticles as Powerful Catalyst [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2018
g-Alumina nanoparticles (g-Al2O3 NPs) were prepared via a new and simple synthetic route and characterized by field emission scanning electron microscopy, X-ray diffraction, and Fourier transform infrared spectroscopy.
Sajad Kiani   +4 more
doaj  

ELECTRON WITHDRAWING GROUP EFFECT ON BIOLOGICAL ACTIVITIES OF PYRIMIDINE HYBRIDS AS POTENTIAL ANTI-MATRIX METALLOPROTEINASE-7 [PDF]

open access: yesQuímica Nova, 2023
We investigated the effect of both electron donating group and e//lectron withdrawing group on biological activity of pyrimidine-based compounds as metalloproteinase-7 inhibitors and predicting a library of drug-like compounds with potent cytotoxicity ...
Abel Kolawole Oyebamiji   +7 more
doaj   +1 more source

Rational Design, Synthesis and Biological Evaluation of Pyrimidine-4,6-diamine derivatives as Type-II inhibitors of FLT3 Selective Against c-KIT. [PDF]

open access: yes, 2018
FMS-like Tyrosine Kinase 3 (FLT3) is a clinically validated target for acute myeloid leukemia (AML). Inhibitors targeting FLT3 have been evaluated in clinical studies and have exhibited potential to treat FLT3-driven AML.
Bharate, Jaideep B   +8 more
core   +2 more sources

Thermodynamic reaction control of nucleoside phosphorolysis [PDF]

open access: yes, 2020
Nucleoside analogs represent a class of important drugs for cancer and antiviral treatments. Nucleoside phosphorylases (NPases) catalyze the phosphorolysis of nucleosides and are widely employed for the synthesis of pentose‐1‐phosphates and nucleoside ...
Giessmann, Robert T.   +4 more
core   +1 more source

A Review on Fused Pyrimidine Systems as EGFR Inhibitors and Their Structure–Activity Relationship

open access: yesFrontiers in Chemistry, 2022
Epidermal growth factor receptor (EGFR) belongs to the family of tyrosine kinase that is activated when a specific ligand binds to it. The EGFR plays a vital role in the cellular proliferation process, differentiation, and apoptosis.
Tanuja T. Yadav   +4 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

Giant spin canting in the S = 1/2 antiferromagnetic chain [CuPM(NO3)2(H2O)2]n observed by 13C-NMR

open access: yes, 2005
We present a combined experimental and theoretical study on copper pyrimidine dinitrate [CuPM(NO3)2(H2O)2]n, a one-dimensional S = 1/2 antiferromagnet with alternating local symmetry.
Brenig, W.   +7 more
core   +1 more source

Novel Selective and Potent EGFR Inhibitor that Overcomes T790M-Mediated Resistance in Non-Small Cell Lung Cancer

open access: yesMolecules, 2016
Treating patients suffering from EGFR mutant non-small cell lung cancer (NSCLC) with first-generation EGFR tyrosine kinase inhibitors (EGFR TKI) provides excellent response rates.
Yanxia Li   +5 more
doaj   +1 more source

Design, Synthesis, and Antimicrobial Evaluation of New Annelated Pyrimido[2,1-c][1,2,4]triazolo[3,4-f][1,2,4]triazines

open access: yesMolecules, 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

Uracil Compounds As Inhibitors For Glutamate Oxaloactate Tansaminase (GOT) In Serum Of Some Leukemia Patients [PDF]

open access: yesKirkuk Journal of Science, 2015
Effect of Uracil’s derivatives on enzyme glutamate oxaloacetate transaminase (GOT) for sample of normal human and some types of leukemia patients, acute lymphatic(ALL) (11 cases), acute mylosyticl (AML) (4 cases), acute mylomonocyticl (AMOL) (2cases ...
Nadia Q. Haj
doaj   +1 more source

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