Relevant bibliographies by topics / 3-a] penta cyclic phenothiazine

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Academic literature on the topic '3-a] penta cyclic phenothiazine'

Author: Grafiati
Published: 7 June 2025
Last updated: 2 August 2025

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Journal articles on the topic "3-a] penta cyclic phenothiazine"

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Odin, E.M., S.A. Egu, and K.J. Okere. "Palladium Catalyzed Anilino Analogues of Angular Penta-Cyclic Phenothiazines: Novel Human Cholinesterases Inhibitors." Pharmaceutical and Chemical Journal 7, no. 2 (2020): 43–53. https://doi.org/10.5281/zenodo.13952327.

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The synthesis of novel 8-chloro12H- 5,14- di hydro- quinoxalino [2,3, a] &ndash; penta cyclic phenothiazine (16) and its anilino derivatives (18 a-h) are reported. The preparation followed the water-mediated catalyst pre-activation method as reported by Buchwald and co-workers. Structures were established by analytical and spectral data. The compounds (18 a-h) were evaluated for inhibitory potency against Acetylcholineesterase (AChE) and Butyrylchlolinesterase (BChE). The tested pentacyclic phenothiazines showed IC<sub>50</sub> values for both AChE and BChE in the range of 1.26 nM to 84.69 nM.
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Argiropoulos, G., LW Deady, and M. Dorkos. "Synthesis and Further Ring-Forming Reactions of a New 3-Amino-isoquinoline-4-carbaldehyde." Australian Journal of Chemistry 44, no. 3 (1991): 481. http://dx.doi.org/10.1071/ch9910481.

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The synthesis of 3-amino-6-(p- methylphenoxy )isoquinoline-4-carbaldehyde in two steps from the corresponding ethyl ester is reported. Further ring annulations by Friedlander synthesis are described to give, for example, new tetra- and penta -cyclic systems ( benzo [f] pyrimido [4,5-b][1,8] naphthyridine and benz [f] indolo [3,2-b][1,8] naphthyridine ).
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Ghalia, Mohamed H., Mohamed Abd El-Hamid, Mohamed A. Zweil, Abd El-Galil E. Amr, and Shimaa A. Moafi. "Synthesis and Reactions of New Chiral Linear and Macrocyclic Tetraand Penta-peptide Candidates." Zeitschrift für Naturforschung B 67, no. 8 (2012): 806–18. http://dx.doi.org/10.5560/znb.2012-0116.

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9a A series of linear and macrocyclic pentapeptide derivatives have been prepared via the coupling of pyridine-2,6-dicarboxylic acid (1) or pyridine-2,6-dicarbonyl dichloride (2) with appropriate amino acid methyl esters. The coupling of 1or 2with aminoacid methyl esters gave the corresponding pyridine dipeptide methyl esters 3, which were hydrolyzed with sodium hydroxide to the corresponding acids 4. The latter compounds 4were coupled with other amino acid methyl esters to afford the corresponding tetrapeptide esters 5, which were hydrolyzed with sodium hydroxide to the corresponding acids 6.
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Seo, Hyowon, Difan Zhang, and T. Alan Hatton. "Experimental and Virtual Screening of Phenazine and Phenothiazine Derivatives in Aqueous Solution for Electrochemical Carbon Capture." ECS Meeting Abstracts MA2023-01, no. 27 (2023): 1772. http://dx.doi.org/10.1149/ma2023-01271772mtgabs.

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Molecular redox-active compounds, including quinone and aza-aromatics, have emerged as tools for capturing carbon dioxide using renewable electricity. Given the vast and highly diverse chemical space of the candidate compounds, accessing their electrochemical properties in a rapid way is attractive for both experimental and virtual screening approaches. Here we present a study on the experimental screening of a series of commercial redox-active compounds. Phenazine and phenothiazine dyes have been experimentally tested for applications in electrochemical carbon capture, for which they are find
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Madar, Suresh F., Avinash C. Mendhe, Ahmedraza Mavazzan, et al. "Novel Phenothiazine and Coumarin based Sensitizers: Design, Synthesis and Photoelectrochemical Application by Anchoring on CdS Nanowires." Asian Journal of Chemistry 36, no. 5 (2024): 1142–50. http://dx.doi.org/10.14233/ajchem.2024.31400.

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Novel metal-free organic dyes (E)-2-cyano-3-(10-(prop-2-yn-1-yl)-10H-phenothiazin-3-yl)acrylic acid (PPC) and (E)-2-cyano-3-(10-((1-((7-methyl-2-oxo-2H-chromen-4-yl)methyl)-1H-1,2,3-triazol-4-yl)methyl)-4a,10a-dihydro-10H-phenothiazin-3-yl)acrylic acid (PCTC) was synthesized and then anchored to 1D cadmium sulfide nanowires (1D CdS NWs) for application in photoelectrochemical dye-sensitized solar cell (DSSC). The 1D CdS nanowires were interconnected into a nanonetwork using solution chemistry in a straightforward and efficient manner. The UV-visible spectroscopy, cyclic voltammetry and density
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Keruckiene, Rasa, Simona Vekteryte, Ervinas Urbonas, et al. "Synthesis and properties of quinazoline-based versatile exciplex-forming compounds." Beilstein Journal of Organic Chemistry 16 (May 28, 2020): 1142–53. http://dx.doi.org/10.3762/bjoc.16.101.

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Three compounds, bearing a quinazoline unit as the acceptor core and carbazole, dimethyldihydroacridine, or phenothiazine donor moieties, were designed and synthesized in two steps including a facile copper-catalyzed cyclization and a nucleophilic aromatic substitution reaction. The photophysical properties of the compounds, based on theoretical calculations and experimental measurements, as well as the electrochemical and thermal properties, are discussed. The synthesized compounds form glasses with glass-transition temperatures ranging from 116 °C to 123 °C. The ionization potentials estimat
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Nhari, Laila M., Reda M. El-Shishtawy, Qiuchen Lu, Yuanzuo Li, and Abdullah M. Asiri. "Novel Triarylamine-Based Hole Transport Materials: Synthesis, Characterization and Computational Investigation." Materials 14, no. 11 (2021): 3128. http://dx.doi.org/10.3390/ma14113128.

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Three novel triarylamine-based electron-rich chromophores were synthesized and fully characterized. Compounds 1 and 2 were designed with electron-rich triphenylamine skeleton bearing two and four decyloxy groups namely, 3,4-bis(decyloxy)-N,N-diphenylaniline and N-(3,4-bis(decyloxy)phenyl)-3,4-bis(decyloxy)-N-phenylaniline, respectively. The well-known electron-rich phenothiazine was introduced to diphenylamine moiety through a thiazole ring to form N,N-bis(3,4-bis(decyloxy)phenyl)-5-(10H-phenothiazin-2-yl)thiazol-2-amine (Compound 3). These three novel compounds were fully characterized and th
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Lawrence, William D., Mark R. Deziel, Paul J. Davis, Marion Schoenl, Faith B. Davis, and Susan D. Blas. "Thyroid hormone stimulates release of calmodulin-enhancing activity from human erythrocyte membranes in vitro." Clinical Science 84, no. 2 (1993): 217–23. http://dx.doi.org/10.1042/cs0840217.

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1. Thyroid hormone (L-thyroxine, 10−10mol/l) incubated in vitro with human erythrocyte membranes induced the release of a soluble calmodulin-like material, the 3′:5′-cyclic nucleotide phosphodiesterase-stimulating activity of which was at least six-fold greater than its concentration measured by a specific calmodulin radioimmunoassay. 2. The material had the characteristics of calmodulin in that it stimulated both phosphodiesterase and erythrocyte Ca2+-ATPase activities, cross-reacted with and was neutralized by anti-calmodulin antibody, was adsorbed by phenothiazine-Sepharose and was heat-sta
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Andrieux, Claude P., Pierre Audebert, and Jean Michel Savéant. "Studies of modified electrodes starting from pyrrole monomers derivatized by anthraquinone, phenothiazine or anthracene moieties on the nitrogen or in the 3-position. Syntheses, cyclic voltammetry and a study of charge-transfer reactions." Synthetic Metals 35, no. 1-2 (1990): 155–58. http://dx.doi.org/10.1016/0379-6779(90)90039-n.

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Alqrad, Manea A. I., Dina S. El-Agamy, Sabrin R. M. Ibrahim та ін. "SIRT1/Nrf2/NF-κB Signaling Mediates Anti-Inflammatory and Anti-Apoptotic Activities of Oleanolic Acid in a Mouse Model of Acute Hepatorenal Damage". Medicina 59, № 7 (2023): 1351. http://dx.doi.org/10.3390/medicina59071351.

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Background and objectives: Oleanolic acid (OA) is a penta-cyclic triterpene with diverse bioactivities such as anticarcinogenic, antiviral, antimicrobial, hepatoprotective, anti-atherosclerotic, hypolipidemic, and gastroprotective. However, its effects on hepatorenal damage remain unclear. The protective activity of OA, separated from Viscum schimperi (Loranthaceae), against TAA (thioacetamide)-produced acute hepatic and renal damage was explored. Materials and Methods: Mice were treated with OA for 7 days before TAA (200 mg/kg, i.p.). Serum indices of hepatorenal injury, pathological lesions,
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Book chapters on the topic "3-a] penta cyclic phenothiazine"

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Kumar Chelike, Dinesh, Senthil A. Gurusamy Thangavelu, and Ananthanarayanan Krishnamoorthy. "HYBRID INORGANIC-ORGANIC CYCLOPHOSPHAZENE- PHENOTHIAZINE BASED MATERIAL WITH TUNABLE YELLOW-GREEN EMITTING PROPERTIES." In Futuristic Trends in Chemical Material Sciences & Nano Technology Volume 3 Book 22. Iterative International Publishers, Selfypage Developers Pvt Ltd, 2024. http://dx.doi.org/10.58532/v3becs22p2ch2.

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Cyclophosphazene hydrazide(CTP-Hyd) and six components of R-PTZ-CHO were condensed to generate a unique luminous hybrid inorganic-organic molecule structure. For the first time, the phenothiazine (PTZ) unit have been appended to the edge of the thermally stable CTP core ring through condensation using the new precursor synthesised from an inorganic heterocycle, CTP-Hyd. ATR-FTIR, 1H-NMR and13C-NMR used to illustrate the luminous hybrid material. Additionally, UV-vis spectroscopy, photoluminescence spectroscopy, cyclic voltammeter (CV) and Thermo gravimetric analysis (TGA) were utilised to exam
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Pushpabai Rajesh, Rajaian, and Grace Vanathi M. "Antimicrobial Peptides Derived from Ascidians and Associated Cyanobacteria." In Insights on Antimicrobial Peptides. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.99183.

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Ascidians belonging to Phylum Chordata are the most largest and diverse of the Sub-phylum Tunicata (Urochordata). Marine ascidians are one of the richest sources of bioactive peptides. These bioactive peptides from marine ascidians are confined to various types of structures such as cyclic peptides, acyclic peptides (depsipeptides), linear helical peptides with abundance of one amino acid (proline, trytophane, histidine), peptides forming hairpin like beta sheets or α-helical/β-sheet mixed structures stabilized by intra molecular disulfide bonding. Cyanobactins are fabricated through the prote
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