Results 21 to 30 of about 251,884 (333)

Facile Synthesis of 5, 6, 7, 8-Tetrahydropyrimido [4, 5-b]-quinoline Derivatives

open access: yesMolecules, 2006
2–Amino–4-phenyl–5,6,7,8–tetrahydroquinoline–3–carbonitrile (3) was synthesized by treating cyclohexanone (1) with 2–benzylidenemalononitrile (2) in the presence of ammonium acetate. The reactivity of compound 3 towards
Mohamed Abdelhamed Morsy   +1 more
doaj   +1 more source

Synthesis of Novel Tryptamine Derivatives and Their Biological Activity as Antitumor Agents

open access: yesMolecules, 2021
We synthesized five novel tryptamine derivatives characterized by the presence of an azelayl chain or of a 1,1,1-trichloroethyl group, in turn connected to another heterocyclic scaffold.
Giorgia Simonetti   +10 more
doaj   +1 more source

Meal for Two: Human Cytomegalovirus-Induced Activation of Cellular Metabolism

open access: yesViruses, 2019
Viruses are parasites that depend on the host cell’s metabolic resources to provide the energy and molecular building blocks necessary for the production of viral progeny.
Irene Rodríguez-Sánchez, Joshua Munger
doaj   +1 more source

Genome-Wide Identification of Pseudomonas aeruginosa Genes Important for Desiccation Tolerance on Inanimate Surfaces

open access: yesmSystems, 2022
Pseudomonas aeruginosa is an opportunistic pathogen prevalent in the environment and in health care settings. Transmission in the health care setting occurs through human-human interactions and/or contact with contaminated surfaces.
Sardar Karash, Timothy L. Yahr
doaj   +1 more source

4-amino-2-phenyl-6-(p-fluorophenyl)-5-carbonitrile-pyrimidine-bis-substituted-loaded liposomes as promising system for cancer treatment [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2023
The aim of the present study was to perform in vitro and in vivo assessments of the antineoplastic action of 4-amino-pyrimidine encapsulated in liposomes. Liposomes were prepared and characterized for particle size and drug encapsulation and submitted to
JANICE V. OLIVEIRA   +9 more
doaj   +1 more source

The Ability of Cyanobacterial Cells to Restore UV-B Radiation Induced Damage to Photosystem II is Influenced by Photolyase Dependent DNA Repair [PDF]

open access: yes, 2013
Damage of DNA and Photosystem-II are among the most significant effects of UV-B irradiation in photosynthetic organisms. Both damaged DNA and Photosystem-II can be repaired, which represent important defense mechanisms against detrimental UV-B effects ...
Kós, Péter   +4 more
core   +1 more source

In Plane Vibration of Pyrimidine and some Deuterated Pyrimidines [PDF]

open access: yesIranian 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  

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

1,2,3-Triazolyl-tetrahydropyrimidine Conjugates as Potential Sterol Carrier Protein-2 Inhibitors: Larvicidal Activity against the Malaria Vector Anopheles arabiensis and In Silico Molecular Docking Study

open access: yesMolecules, 2022
Alteration of insect growth regulators by the action of inhibitors is becoming an attractive strategy to combat disease-transmitting insects. In the present study, we investigated the larvicidal effect of 1,2,3-triazolyl-pyrimidinone derivatives against ...
Katharigatta N. Venugopala   +16 more
doaj   +1 more source

Aromatic N versus aromatic F : bioisosterism discovered in RNA base pairing interactions leads to a novel class of universal base analogs [PDF]

open access: yes, 2010
The thermodynamics of base pairing is of fundamental importance. Fluorinated base analogs are valuable tools for investigating pairing interactions. To understand the influence of direct base–base interactions in relation to the role of water, pairing ...
Alrun N. Koller   +74 more
core   +1 more source

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