Academic literature on the topic 'Heterocycle'

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Journal articles on the topic "Heterocycle"

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Andres, C. J., Derek J. Denhart, Milind S. Deshpande, and Kevin W. Gillman. "Recent Advances in the Solid Phase Synthesis of Drug Heterocyclic Small Molecules." Combinatorial Chemistry & High Throughput Screening 2, no. 4 (August 1999): 191–210. http://dx.doi.org/10.2174/1386207302666220204193145.

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Abstract: Because of their synthetic challenge, broad range of physical I chemical properties, and diverse biological activities, heterocycles continue to be of interest to both the academic and industrial chemist. This review covers recent advances in the solid phase synthesis of drug-like heterocyclic small molecules. Syntheses which form the heterocycle on the solid phase are emphasized; syntheses in which a preformed heterocycle is functionalized on the solid support have been omitted. The majority of references are from publication year 1999. This review should be of interest to anyone involved in, or contemplating the solid phase synthesis of small molecule drug-like heterocycles, especially for combinatorial chemistry applications.
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Winne, Johan, Jan Hullaert, Bram Denoo, Mien Christiaens, and Brenda Callebaut. "Heterocycles as Moderators of Allyl Cation Cycloaddition Reactivity." Synlett 28, no. 18 (July 27, 2017): 2345–52. http://dx.doi.org/10.1055/s-0036-1588511.

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For the rapid elaboration of polycarbocyclic scaffolds, prevalent in many important families of terpenoid natural products, allyl cations derived from simple heterocyclic alcohols can be used as versatile reaction partners in both (4+3) and (3+2) cycloaddition pathways. Our recent progress in this area is outlined, pointing towards the untapped potential of heterocycles to act as reagents in novel or known but challenging organic transformations.1 Heterocyclic Reagents2 Cycloadditions and Allyl Cations3 Furfuryl Cations in Cycloadditions4 Heterocycle-Substituted Cations in Cycloadditions5 Mechanistic Considerations6 Conclusions and Outlook
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Rusu, Aura, Ioana-Maria Moga, Livia Uncu, and Gabriel Hancu. "The Role of Five-Membered Heterocycles in the Molecular Structure of Antibacterial Drugs Used in Therapy." Pharmaceutics 15, no. 11 (October 29, 2023): 2554. http://dx.doi.org/10.3390/pharmaceutics15112554.

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Five-membered heterocycles are essential structural components in various antibacterial drugs; the physicochemical properties of a five-membered heterocycle can play a crucial role in determining the biological activity of an antibacterial drug. These properties can affect the drug’s activity spectrum, potency, and pharmacokinetic and toxicological properties. Using scientific databases, we identified and discussed the antibacterials used in therapy, containing five-membered heterocycles in their molecular structure. The identified five-membered heterocycles used in antibacterial design contain one to four heteroatoms (nitrogen, oxygen, and sulfur). Antibacterials containing five-membered heterocycles were discussed, highlighting the biological properties imprinted by the targeted heterocycle. In some antibacterials, heterocycles with five atoms are pharmacophores responsible for their specific antibacterial activity. As pharmacophores, these heterocycles help design new medicinal molecules, improving their potency and selectivity and comprehending the structure-activity relationship of antibiotics. Unfortunately, particular heterocycles can also affect the drug’s potential toxicity. The review extensively presents the most successful five-atom heterocycles used to design antibacterial essential medicines. Understanding and optimizing the intrinsic characteristics of a five-membered heterocycle can help the development of antibacterial drugs with improved activity, pharmacokinetic profile, and safety.
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Niedballa, Jonas, and Thomas J. J. Müller. "Heterocycles by Consecutive Multicomponent Syntheses via Catalytically Generated Alkynoyl Intermediates." Catalysts 12, no. 1 (January 13, 2022): 90. http://dx.doi.org/10.3390/catal12010090.

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Multicomponent processes are beneficial tools for the synthesis of heterocycles. As densely substituted bifunctional electrophiles, ynones are essential intermediates by applying cyclocondensations or cycloadditions in numerous heterocycle syntheses. The respective alkynoyl intermediates are generally accessible by palladium-, copper- and palladium/copper-catalyzed alkynylation. In turn, the mild reaction conditions allow for a fast and versatile entry to functional heterocycles in the sense of consecutive multicomponent processes. This review collates and presents recent advances in accessing thirteen heterocycle classes and their applications by virtue of catalytic alkynoyl generation in diversity-oriented multicomponent syntheses in a one-pot fashion.
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Cui, Hai-Lei. "Recent Advances in DMSO-Based Direct Synthesis of Heterocycles." Molecules 27, no. 23 (December 2, 2022): 8480. http://dx.doi.org/10.3390/molecules27238480.

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Besides serving as a low-toxicity, inexpensive and easily accessible solvent, dimethyl sulfoxide (DMSO) has also been extensively used as a versatile reagent for the synthesis of functionalized molecules. Dimethyl sulfoxide can not only be utilized as a carbon source, a sulfur source and an oxygen source, but also be employed as a crucial oxidant enabling various transformations. The past decade has witnessed a large number of impressive achievements on the direct synthesis of heterocycles as well as modifications of heterocyclic compounds by applying DMSO as a reagent. This review summarized the DMSO-based direct heterocycle constructions from 2012 to 2022.
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Llopart, Carme Cantos, Conchita Ferrer, and John A. Joule. "Lithiation of 1-arylimidazol-2(1H)-ones and 1-aryl-4,5-dihydroimidazol-2(1H)-ones." Canadian Journal of Chemistry 82, no. 11 (November 1, 2004): 1649–61. http://dx.doi.org/10.1139/v04-137.

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1-Arylimidazol-2(1H)-ones are shown to be readily lithiated, using 2 mol equiv. of n-butyllithium, on the benzene ring, ortho to the heterocycle. 1-Aryl-4,5-dihydroimidazol-2(1H)-ones also undergo metalation on the aromatic substitutuent ortho to the heterocycle, but less efficiently. 1-Aryl-3-methylimidazol-2(1H)-ones are lithiated on the heterocyclic ring and then on the benzene ring ortho to the heterocycle. No ortho-directing effect was found for 1-aryl-4,5-dihydro-3-methylimidazol-2(1H)-ones.Key words: ortho-lithation, ureas for directed ortho metalation, 1-arylimidazol-2-ones, 1-arylimidazolidin-2-ones.
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Xia, Xiao-Feng, and Yan-Ning Niu. "Recent developments in the synthesis of nitrogen-containing heterocycles from β-aminovinyl esters/ketones as CC–N donors." Organic & Biomolecular Chemistry 20, no. 2 (2022): 282–95. http://dx.doi.org/10.1039/d1ob01998h.

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Sparr, Christof, and Christian Fischer. "Configurationally Stable Atropisomeric Acridinium Fluorophores." Synlett 29, no. 16 (August 3, 2018): 2176–80. http://dx.doi.org/10.1055/s-0037-1610233.

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Arylated heterocyclic fluorophores are particularly useful scaffolds for numerous applications, such as bioimaging or synthetic photochemistry. While variation of the substitution pattern at the heterocycle and aryl groups allows dye modulation, the bond rotational barriers are also strongly affected. Unsymmetrically substituted ring systems of rotationally restricted arylated heterocycles therefore lead to configurationally stable atropisomeric fluorophores. Herein, we describe these characteristics by determining the properties and configurational stability of atropisomeric, tri-ortho-substituted naphthyl-acridinium fluorophores. A significant barrier to rotation of >120 kJ mol–1 was measured, which renders these dyes and related compounds distinct ­atropisomers with stereoisomer-specific properties over a broad temperature range.
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Prager, RH, Y. Singh, and B. Weber. "The Chemistry of 5-Oxodihydroisoxazoles. VIII. Photolysis of 2-(Heterocyclyl)isoxazol-5(2H)-ones." Australian Journal of Chemistry 47, no. 7 (1994): 1249. http://dx.doi.org/10.1071/ch9941249.

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Photolysis of 2-( heterocyclyl )isoxazol-5(2H)-ones occurs readily at 300 nm. In alcohol the products are the corresponding 2-alkoxy-3-heterocyclylaminoacrylates, and, in the presence of 1 M trifluoroacetic acid, the corresponding imidazole annulated heterocycle . Examples are reported where the heterocycle is quinolin-2-yl (10 examples), isoquinolin-1-yl, benzoxazol-2-yl, benzothiazol-2-yl, quinazolin-1-yl and pyrimidin-2-yl.
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Olyaei, Abolfazl, and Mahdieh Sadeghpour. "Chemistry of 3-cyanoacetyl indoles: synthesis, reactions and applications: a recent update." RSC Advances 13, no. 31 (2023): 21710–45. http://dx.doi.org/10.1039/d3ra04385a.

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Dissertations / Theses on the topic "Heterocycle"

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Qaddo, Akram. "Enantiospecific nitrogen heterocycle synthesis." Thesis, University of Sheffield, 2016. http://etheses.whiterose.ac.uk/15791/.

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Morley, Thomas James. "Sulfur mediated heterocycle synthesis." Thesis, University of Cambridge, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.613825.

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Sadig, Jessie E. R. "Palladium-catalysed heterocycle synthesis." Thesis, University of Oxford, 2012. http://ora.ox.ac.uk/objects/uuid:c9608957-d215-4a15-87e3-5871c1391946.

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Chapter 1 is a literature review of selected palladium-catalysed aryl C-N and C-S bond forming reactions. The application of these reactions to the synthesis of heterocycles is also discussed. Chapter 2 highlights the importance of the benzimidazole motif and gives a brief discussion of the existing routes to this scaffold. The utility of N-(o-halophenyl)imidoyl chlorides and imidates as precursors to heterocycles is demonstrated in a palladium-catalysed reaction with N-nucleophiles to afford benzimidazole products. Chapter 3 provides a brief introduction to the synthesis of benzothiazoles and describes efforts towards the use of our established substrates for the preparation of these heterocycles. This is achieved via reaction of N-(o-chlorophenyl)imidoyl chlorides with a sulfur nucleophile in a metal-free process. Chapter 4 is a literature review of palladium-catalysed carbonylation chemistry with specific focus on aminocarbonylation and thiocarbonylation reactions of aryl halides. Heterocycle syntheses which employ such carbonylative methods are also discussed. Chapter 5 describes existing protocols for the synthesis of quinazolinones. A novel palladium-catalysed synthesis of these heterocycles from the reaction of our imidate substrates with an amine and carbon monoxide is described. This further demonstrates their utility as general heterocycle precursors
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Wang, Yinli. "Development of A New Heterocycle Forming Reaction and Kinetic Resolution with N-Heterocyclic Carbenes." Kyoto University, 2018. http://hdl.handle.net/2433/232320.

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Foster, Radleigh. "Tandem reactions for nitrogen heterocycle syntheses." Thesis, University of Oxford, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.669897.

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Shirtcliff, Laura Donnell. "'Coarctate' cyclizations : applications to heterocycle synthesis /." view abstract or download file of text, 2006. http://proquest.umi.com/pqdweb?did=1188876631&sid=1&Fmt=2&clientId=11238&RQT=309&VName=PQD.

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Thesis (Ph. D.)--University of Oregon, 2006.
Typescript. Includes vita and abstract. Includes bibliographical references (leaves 336-357). Also available for download via the World Wide Web; free to University of Oregon users.
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Braunton, Alan James. "Tethered cycloaddition reactions for heterocycle synthesis." Thesis, Imperial College London, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.407915.

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Tadd, Andrew. "Palladium and copper catalysed heterocycle synthesis." Thesis, University of Oxford, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.504606.

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Brumwell, Julie E. "Heterocycle synthesis using free radical cyclisations." Thesis, University of Nottingham, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.357926.

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Ball, Catherine Jane. "Palladium- and copper-catalysed heterocycle synthesis." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:589b70fb-0823-4ccf-8b35-1883908f917d.

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A number of privileged starting materials based on aryl halide frameworks have emerged that allow access to a variety of different heterocyclic scaffolds through judicious choice of reaction conditions. This work describes efforts to develop and extend the utility of two of these general heterocycle precursors - ortho-(haloalkenyl)aryl halides A and α-(ortho-haloaryl) ketones B - in conjunction with cascade reactions involving the construction of key carbon-heteroatom bonds via palladium or copper catalysis. Chapter 1 entails an overview of the development of palladium- and copper-catalysed carbon-heteroatom bond forming processes. The application of these processes in heterocycle synthesis using ortho-(haloalkenyl)aryl halide and ortho-haloacetanilides/ α-(ortho-haloaryl) ketone precursors is also described. Chapter 2 focuses on the development of a two-step synthesis of cinnolines using ortho-(haloalkenyl)aryl halides via intermediate protected dihydrocinnoline derivatives C. Chapter 3 demonstrates how the inherent reactivity of protected dihydrocinnoline derivatives C can be harnessed to provide access to functionalised products. A brief target synthesis of a pharmaceutically-relevent cinnoline is also described. Chapter 4 details attempts to develop a novel synthesis of benzothiophenes D from both ortho-(haloalkenyl)aryl halide and α-(ortho-haloaryl) ketone precursors.
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Books on the topic "Heterocycle"

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Kaur, Navjeet. Lawesson’s Reagent in Heterocycle Synthesis. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-4655-3.

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Petrone, David A. Stereoselective Heterocycle Synthesis via Alkene Difunctionalization. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-77507-4.

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Wang, Yinli. Development of a New Heterocycle-Forming Reaction and Kinetic Resolution with N-Heterocyclic Carbenes. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-9398-3.

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Wu, Xiao-Feng, ed. Transition Metal-Catalyzed Heterocycle Synthesis via CH Activation. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2016. http://dx.doi.org/10.1002/9783527691920.

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R, Katritzky Alan, Soldatenkov, A. T. (Anatoliĭ Timofeevich), and ebrary Inc, eds. Heterocycles in life and society: An introduction to heterocyclic chemistry, biochemistry and applications. 2nd ed. Chichester, West Sussex: Wiley, 2011.

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Pozharskiĭ, A. F. Heterocycles in life and society: An introduction to heterocyclic chemistry and biochemistry and the role of heterocycles in science, technology, medicine, and agriculture. Chichester: Wiley, 1997.

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Ameta, Keshav Lalit, Ravi Kant, Andrea Penoni, Angelo Maspero, and Luca Scapinello, eds. N-Heterocycles. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-0832-3.

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Iskra, Jernej, ed. Halogenated Heterocycles. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-25103-0.

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Gakh, Andrei A., and Kenneth L. Kirk, eds. Fluorinated Heterocycles. Washington, DC: American Chemical Society, 2009. http://dx.doi.org/10.1021/bk-2009-1003.

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Gakh, Andrei A. Fluorinated heterocycles. Edited by American Chemical Society. Division of Fluorine Chemistry and American Chemical Society Meeting. Washington, DC: American Chemical Society, 2009.

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Book chapters on the topic "Heterocycle"

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Miyakawa, Shin. "Heterocycle." In Encyclopedia of Astrobiology, 1. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-27833-4_719-3.

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Miyakawa, Shin. "Heterocycle." In Encyclopedia of Astrobiology, 1106. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-44185-5_719.

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Miyakawa, Shin. "Heterocycle." In Encyclopedia of Astrobiology, 754–55. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-11274-4_719.

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Miyakawa, Shin, and Kensei Kobayashi. "Heterocycle." In Encyclopedia of Astrobiology, 1. Berlin, Heidelberg: Springer Berlin Heidelberg, 2022. http://dx.doi.org/10.1007/978-3-642-27833-4_719-4.

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Miyakawa, Shin, and Kensei Kobayashi. "Heterocycle." In Encyclopedia of Astrobiology, 1331. Berlin, Heidelberg: Springer Berlin Heidelberg, 2023. http://dx.doi.org/10.1007/978-3-662-65093-6_719.

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Kaur, Navjeet. "S-Heterocycle Synthesis." In Lawesson’s Reagent in Heterocycle Synthesis, 175–214. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-4655-3_6.

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Chen, Feng, and Ning Jiao. "Cu-Catalyzed Heterocycle Synthesis." In Transition Metal-Catalyzed Heterocycle Synthesis via CH Activation, 233–90. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2016. http://dx.doi.org/10.1002/9783527691920.ch8.

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Mamedov, Vakhid A. "Quinoxaline–As a Parent Heterocycle." In Quinoxalines, 1–4. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-29773-6_1.

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Joseph, Jomy, and Andrey P. Antonchick. "Free Radicals in Heterocycle Functionalization." In Topics in Heterocyclic Chemistry, 93–149. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/7081_2017_8.

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Kaur, Navjeet. "Five-Membered N-Heterocycle Synthesis." In Lawesson’s Reagent in Heterocycle Synthesis, 1–33. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-4655-3_1.

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Conference papers on the topic "Heterocycle"

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Haaland, Peter, and James Targove. "Flowing Afterglow Synthesis of Polythiophene Films." In Nonlinear Guided-Wave Phenomena. Washington, D.C.: Optica Publishing Group, 1991. http://dx.doi.org/10.1364/nlgwp.1991.tue4.

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Polymers of aromatic heterocycles such as thiophene and pyrrole have been actively investigated for their promising electrical and optical characteristics. However the use of these materials in waveguide structures has been constrained by morphological and synthetic barriers. Specifically, larger oligomers are less soluble causing multiphase chemical kinetics and irregular morphology in the metal-catalyzed coupling syntheses.fi] Electrochemical preparation methods also produce grainy or fibrillar material, most probably because the heterogeneous boundary conditions on film growth change as insulating or semi-conducting material is deposited on the electrodes. [2] We report here a synthetic approach to the polymeric heterocycle polythiophene using electronically excited argon metastables to activate organic precursors. This method is seen to produce dense, uniform films with desirable thiophene linkages and excellent optical properties.
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missoum, Hadjer, Yazid Datoussaid, and Noureddine Choukchou-braham. "synthesis of heterocycle via Vilsmeier-haack reaction." In The 24th International Electronic Conference on Synthetic Organic Chemistry. Basel, Switzerland: MDPI, 2020. http://dx.doi.org/10.3390/ecsoc-24-08101.

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Johansen, Sommer, Kyle Crabtree, and Marie-Aline Martin-Drumel. "SEARCHING FOR A NITROGEN-HETEROCYCLE PRECURSOR: THE ROTATIONAL SPECTRUM OF THE _-CYANOVINYL RADICAL." In 74th International Symposium on Molecular Spectroscopy. Urbana, Illinois: University of Illinois at Urbana-Champaign, 2019. http://dx.doi.org/10.15278/isms.2019.wg07.

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Johansen, Sommer, Kyle Crabtree, Lee-Ping Wang, and Lisa Oh. "DISCOVERING NOVEL GAS-PHASE NITROGEN-HETEROCYCLE FORMATION PATHWAYS WITH AN AB INITIO NANOREACTOR." In 2020 International Symposium on Molecular Spectroscopy. Urbana, Illinois: University of Illinois at Urbana-Champaign, 2020. http://dx.doi.org/10.15278/isms.2020.ti09.

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Johansen, Sommer, Kyle Crabtree, Lee-Ping Wang, and Lisa Oh. "DISCOVERING NOVEL GAS-PHASE NITROGEN-HETEROCYCLE FORMATION PATHWAYS WITH AN AB INITIO NANOREACTOR." In 2021 International Symposium on Molecular Spectroscopy. Urbana, Illinois: University of Illinois at Urbana-Champaign, 2021. http://dx.doi.org/10.15278/isms.2021.fc06.

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Kidwell, Nathanael. "SINGLE-CONFORMATION SPECTROSCOPY AND DYNAMICS ON MULTIPLE POTENTIAL ENERGY SURFACES: FLEXIBLE NITROGEN-HETEROCYCLE CHROMOPHORES AND COMPLEXES IN AEROSOLS." In 2022 International Symposium on Molecular Spectroscopy. Urbana, Illinois: University of Illinois at Urbana-Champaign, 2022. http://dx.doi.org/10.15278/isms.2022.wa03.

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Beljkas, Milan, Jelena Rebić, Milica Radan, Teodora Đikić, Slavica Oljačić, and Katarina Nikolic. "3D-Quantitative Structure-Activity Relationship and design of novel Rho-associated protein kinases-1 (ROCK1) inhibitors." In 2nd International Conference on Chemo and Bioinformatics. Institute for Information Technologies, University of Kragujevac, 2023. http://dx.doi.org/10.46793/iccbi23.584b.

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Rho-associated coiled-coil kinases (ROCKs) are involved in essential cellular functions such as adhesion, contraction, motility, proliferation, and cell survival/apoptosis. Four ROCK inhibitors have already been approved by the FDA and are used to treat glaucoma (ripasudil and netarsudil), cerebral vasospasm (fasudil), and graft-versus-host disease (belumosudil). Recent studies have focused on exploring the role of ROCK kinase inhibitors in cancer treatment and the development of new ROCK inhibitors. The main objective of this study was to identify critical structural features relevant to the inhibition of ROCK1 using a ligand-based 3D-QSAR (3D quantitative structure-activity relationship) method. The 3D-QSAR model for ROCK1 was created and validated using internal and external validation parameters (R2, Q2, R2pred, rm 2, r/2m, rm̅̅2̅ and ∆r2m). The main structural features that correlate with the inhibition of ROCK1 were identified (e.g., heterocycle with hydrogen donor group like nitrogen atom) and further structural modifications of the ROCK1 inhibitors that contribute to increased activity were proposed (removal of the amino group of the oxadiazole, modification of the substituents of the phenyl ring).
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Mangalagiu, Violeta, Dumitrela Diaconu, Costel Moldoveanu, Gheorghita Zbancioc, Ramona Danac, Dorina Amariucai-Mantu, Vasilichia Antoci, and Ionel Mangalagiu. "Hybrid and chimeric nitrogen heterocycles with biological activity." In Scientific seminar with international participation "New frontiers in natural product chemistry". Institute of Chemistry, Republic of Moldova, 2023. http://dx.doi.org/10.19261/nfnpc.2023.ab01.

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Nitrogen heterocycles, especially azine and azole derivatives, are highly valuable scaffolds in medicinal chemistry, being the core components of a large variety of drugs with variously biological activity such as antiplasmodial and antimalarial, antitubercular, antibacterial, antifungal, anticancer, analgesic, antidepressant, anxiolytics, antihypertensive, anticoagulants, diuretics, etc. As a result, obtaining of such entities continues to arouse a strong interest from academia and industry. As part of our ongoing research in the area of nitrogen heterocyclic derivatives, we present herein some representative results obtained by our group in the field of hybrid and chimeric azahetrocycles compounds with antimicrobial and anticancer activity. Chemistry, anticancer, antibacterial, antifungal and antituberculosis activity of compounds is presented. Some of the hybrid and chimeric structures possess a good anticancer and/or antimicrobial activity.
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Khodairy, Ahmed, and Mohamed Abass. "Substituted Quinolinones. Part 14. Synthesis of Novel Dispiro(heterocycle-n,2'-[1,3]dithietane-4',3"-quinolinedione) Derivatives Under PTC-conditions." In The 14th International Electronic Conference on Synthetic Organic Chemistry. Basel, Switzerland: MDPI, 2010. http://dx.doi.org/10.3390/ecsoc-14-00464.

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Ramos, Nuna L. P., Rui Oliveira, Susana P. G. Costa, and Maria Manuela M. Raposo. "Synthesis, Characterization and Preliminary Antibacterial Evaluation against Staphylococcus aureus of a New 2,4,5-Tri(hetero)arylimidazole Derivative Based on Azaindole Heterocycle." In ECSOC-25. Basel Switzerland: MDPI, 2021. http://dx.doi.org/10.3390/ecsoc-25-11781.

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Reports on the topic "Heterocycle"

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Liu, Shih-Yuan. Hydrogen Storage by Novel CBN Heterocycle Materials. Office of Scientific and Technical Information (OSTI), October 2015. http://dx.doi.org/10.2172/1221989.

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Savage, Paul B., John M. Desper, and Samuel H. Gellman. Stereoselective Oxidation of an Eleven-Membered Heterocycle. Fort Belvoir, VA: Defense Technical Information Center, January 1992. http://dx.doi.org/10.21236/ada252091.

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Pagoria, P. Trinitromethyl Heterocycle Oxidizers as a Solid Propellant Ingredient, CRADA No. TC02146.0. Office of Scientific and Technical Information (OSTI), January 2011. http://dx.doi.org/10.2172/1061529.

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Boyer, Joseph H. Heterocycles as Laser Dyes. Fort Belvoir, VA: Defense Technical Information Center, June 1992. http://dx.doi.org/10.21236/ada251574.

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5

Habben, C., L. Komorowski, W. Maringgele, A. Meller, and K. Niedenzu. Reactions of Some Boron Heterocycles with Pyrazole. Fort Belvoir, VA: Defense Technical Information Center, March 1989. http://dx.doi.org/10.21236/ada205979.

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Darke, Greg, Tommy Hawkins, Adam Brand, Milton Mckay, and Ismail Ismail. Energetic, Low Melting Salts of Simple Heterocycles. Fort Belvoir, VA: Defense Technical Information Center, January 2003. http://dx.doi.org/10.21236/ada410888.

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7

Huang, Qinhua. New Palladium-Catalyzed Approaches to Heterocycles and Carbocycles. Office of Scientific and Technical Information (OSTI), December 2004. http://dx.doi.org/10.2172/835382.

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8

Parshikov, Igor. Microbial Transformation of Some Ethylpyridines by Fungi. Intellectual Archive, January 2022. http://dx.doi.org/10.32370/iaj.2635.

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Abstract:
We were observed transformation 4-ethylpyridine and 2-methyl-5-ethylpyridine by fungus Beauveria bassiana ATCC 7159. Stereoselective oxidation of methylene group leading to the optically active (-)-(1-hydroxyethyl)pyridine was shown. Besides, the hydroxylation of methyl groups and the oxidation of the heterocyclic ring in the nitrogen atom to the respective primary alcohols and N-oxides were observed
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Beasley, Jonathan. Synthesis of heterocycles: Indolo (2,1-a) isoquinolines, renewables, and aptamer ligands for cellular imaging. Office of Scientific and Technical Information (OSTI), January 2013. http://dx.doi.org/10.2172/1082980.

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Paciorek, K. L., J. H. Nakahara, and R. H. Kratzer. Heterocycles Based on Group 3, 4, and 5 Elements Precursors for Novel Glasses and Ceramics. Fort Belvoir, VA: Defense Technical Information Center, May 1988. http://dx.doi.org/10.21236/ada205586.

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