Results 21 to 30 of about 4,641 (228)

Sustainable Access to Acridin-9-(10H)ones with an Embedded m-Terphenyl Moiety Based on a Three-Component Reaction

open access: yesMolecules, 2020
A Ce(IV)-catalyzed three-component reaction between chalcones, anilines and β-ketoesters followed by a microwave-assisted thermal cyclization afforded 1,3-diaryl-1,2-dihydroacridin-9(10H)-ones.
Damiano Rocchi   +3 more
doaj   +1 more source

A facile synthesis of N-H-and N-substituted acridine-1,8-diones under sonic condition [PDF]

open access: yes, 2013
Synthesis of an assembly of structurally important N-H- and N-substituted acridine-1,8-diones by CAN (ceric ammonium nitrate) catalysed one-pot four-component reaction of electron-deficient and electron-rich aromatic aldehydes and aromatic amines or ...
Pasha, M.A., Sudha, S.
core   +3 more sources

Tricyclic Cationic Chromophores as Models for New Photoantimicrobials [PDF]

open access: yes, 2015
Despite the preponderance of literature pertaining to photosensitisers based on the porphyrin system, many other chemical classes are available with similar or improved characteristics and potential for use in photodynamic medicine.
Wainwright, M
core   +1 more source

Synthesis, Biological Evaluation and Stability Studies of Some Novel Aza-Acridine Aminoderivatives

open access: yesMolecules, 2020
Several new amino-substituted aza-acridine derivatives bearing a basic side chain have been designed and synthesized. The antiproliferative activity of the target compounds has been evaluated against three cancer cell lines—namely HCT-116 (colorectal ...
Maria Karelou   +7 more
doaj   +1 more source

Relationships between the Mandibles, Feeding Behavior, and Damage Inflicted on Plants by the Feeding of Certain Acridids (Orthoptera) [PDF]

open access: yes, 2017
[excerpt] In 1960 the author described three fundamental patterns of feed- ing in Orthoptera and their allies and emphasized the close correlation that exists between the insects\u27 mouthpart structure, food, and feeding pattern. An article by Anderson (
Gangwere, S. K.
core   +3 more sources

An Efficient Protocol for Synthesis of Pyrazolo[3,4-a]acridines [PDF]

open access: yes, 2015
A new class of pyrazolo[3,4-a]acridines have been prepared, the synthon acridones were obtained in very good yield by one pot reaction of 2-amino-5-chloro or nitro substituted benzophenones with 1,3-cyclic diketones in the presence of freshly prepared ...
Kaminsky, Werner   +3 more
core   +2 more sources

c‐Rel–dependent Chk2 signaling regulates the DNA damage response limiting hepatocarcinogenesis

open access: yesHepatology, EarlyView., 2022
In response to genotoxic injury, c‐Rel upregulates ATM‐Chk2‐p53 pathway DNA damage proteins to limiting hepatocarcinogenesis. Abstract Background and Aims Hepatocellular carcinoma (HCC) is a leading cause of cancer‐related death. The NF‐κB transcription factor family subunit c‐Rel is typically protumorigenic; however, it has recently been reported as a
Jack Leslie   +17 more
wiley   +1 more source

Ethyl 2-[9-(5-bromo-2-hydroxyphenyl)-3,3,6,6-tetramethyl-1,8-dioxo-1,2,3,4,5,6,7,8,9,10-decahydroacridin-10-yl]acetate

open access: yesIUCrData, 2017
In the title compound, C27H32BrNO5, the central 1,4-dihydropyridine ring adopts a shallow sofa conformation (with the C atom bearing the bromophenol ring as the flap), whereas the pendant cyclohexene rings both have twisted-boat conformations.
Shaaban K. Mohamed   +4 more
doaj   +1 more source

Stable σh-adducts in the reactions of the acridinium cation with heterocyclic N-nucleophiles [PDF]

open access: yes, 2013
A reaction of NH-heterocycles with the 10-methylacridinium cation in the presence of a base led to 9,10-dihydro-10-methyl-9-substituted acridines, which can be considered as stable intermediates in the aromatic nucleophilic substitution reaction of ...
Budnikova, Y. G.   +6 more
core   +1 more source

Formation of a Unique Cluster of G-Quadruplex Structures in the HIV-1 nef Coding Region: Implications for Antiviral Activity [PDF]

open access: yes, 2013
G-quadruplexes are tetraplex structures of nucleic acids that can form in G-rich sequences. Their presence and functional role have been established in telomeres, oncogene promoters and coding regions of the human chromosome.
Frasson, Ilaria   +8 more
core   +11 more sources

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