Academic literature on the topic 'Β-Carbolines'

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Journal articles on the topic "Β-Carbolines"

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Glinsky-Olivier, Nicolas, та Xavier Guinchard. "Enantioselective Catalytic Methods for the Elaboration of Chiral Tetrahydro-β-carbolines and Related Scaffolds". Synthesis 49, № 12 (2017): 2605–20. http://dx.doi.org/10.1055/s-0036-1589003.

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Tetrahydro-β-carbolines are important synthetic intermediates in the total synthesis of natural products and of compounds exhibiting strong bioactivities. Over the last decades, catalytic methods using chiral catalysts have been described for their synthesis. This review covers catalytic and enantioselective methods to access chiral tetrahydro-β-carbolines and their applications in the elaboration of complex chiral molecules.1 Introduction2 Asymmetric Reduction of Dihydro-β-carbolines2.1 Asymmetric Transfer Hydrogenation Reactions2.2 Asymmetric Hydrogenation Reactions2.3 Biocatalyzed Reduction
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Ferretti, Valeria, Paola Gilli та Pier Andrea Borea. "Structural features controlling the binding of β-carbolines to the benzodiazepine receptor". Acta Crystallographica Section B Structural Science 60, № 4 (2004): 481–89. http://dx.doi.org/10.1107/s0108768104013564.

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β-Carbolines are a class of drug which can interact with a high affinity with the benzodiazepine (BDZ) binding site of the GABAA receptor. The present paper, aimed at obtaining a deeper insight into the structure–properties relationships of this class of molecules, reports the crystal structures of four β-carbolines: ZK93423 (3-carboethoxy-4-methoxymethyl-6-benzyloxy-β-carboline), ZK91296 (3-carboethoxy-4-methoxymethyl-5-benzyloxy-β-carboline), FG7142 (N-methyl-3-carbamoyl-β-carboline) and the low-affinity ligand harmine hydrochloride (1-methyl-7-methoxy-β-carboline). This set of structural da
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Ribeiro, João L. P., Joana B. Loureiro, Susana M. M. Lopes, Lucília Saraiva та Teresa M. V. D. Pinho e Melo. "3-(1,2,3-Triazol-4-yl)-β-Carbolines and 3-(1H-Tetrazol-5-yl)-β-Carbolines: Synthesis and Evaluation as Anticancer Agents". Pharmaceuticals 15, № 12 (2022): 1510. http://dx.doi.org/10.3390/ph15121510.

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Herein, the synthesis and anticancer activity evaluation of a series of novel β-carbolines is reported. The reactivity of nitrosoalkenes towards indole was explored for the synthesis of novel tryptophan analogs where the carboxylic acid was replaced by a triazole moiety. This tryptamine was used in the synthesis of 3-(1,2,3-triazol-4-yl)-β-carbolines via Pictet–Spengler condensation followed by an oxidative step. A library of compounds, including the novel 3-(1,2,3-triazol-4-yl)-β-carbolines as well as methyl β-carboline-3-carboxylate and 3-tetrazolyl-β-carboline derivatives, was evaluated for
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Cai, Rui, Li Zhu, Pengfei Wang та Yu Zhao. "Bimetallic Catalyzed N-arylation Used in Synthesis of Novel β-carbolines Derivatives". Letters in Drug Design & Discovery 17, № 5 (2020): 520–25. http://dx.doi.org/10.2174/1570180815666181025124615.

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Background: Natural occurring β-Carbolines alkaloids are abundant in the plant kingdom or other organisms, and they were found to possess good antitumor activity through multiple mechanisms. Based on previous summarized SARs of β-carboline derivatives, the modification on pyridine ring would have a great impact on their antitumor activities. Therefore, we plan to synthesized arylated β-carboline-3-amides to find more valuable β-Carbolines derivatives. Methods: A novel bimetallic Pd(OAc)2/AgOAc catalyst system was developed for the amidation of aryl iodides under acid condition. A series of N-a
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Berlin, J., I. N. Kuzovkina, C. Rügenhagen, L. Fecker, U. Commandeur, and V. Wray. "Hairy Root Cultures of Peganum harmala II. Characterization of Cell Lines and Effect of Culture Conditions on the Accumulation of ß-Carboline Alkaloids and Serotonin." Zeitschrift für Naturforschung C 47, no. 3-4 (1992): 222–30. http://dx.doi.org/10.1515/znc-1992-3-410.

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Abstract Hairy root cultures of Peganum harmala established by genetic transformation with Agrobacterium rhizogenes wild type strains A4, 15834 or carrying the binary vector pLTCgus 1, respectively, were analyzed with respect to their tryptophan-derived metabolites. Beside the previously detected β-carboline alkaloids harmine, harmol, harmaline and harmalol all hairy root cultures were found to contain the β-carboline glucoside ruine and serotonin. The appearance of the root cultures and the levels of β-carboline alkaloids were greatly affected by the nitrogen source of the medium. In the pres
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Shi, Lili, Ziyu Cui та Wei Liu. "Effect of Chemical Refining on the Reduction of β-Carboline Content in Sesame Seed Oil". Molecules 28, № 11 (2023): 4503. http://dx.doi.org/10.3390/molecules28114503.

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β-carbolines (harman and norharman) are potentially mutagenic and have been reported in some vegetable oils. Sesame seed oil is obtained from roasted sesame seeds. During sesame oil processing, roasting is the key procedure to aroma enhancement, in which β-carbolines are produced. Pressed sesame seed oils cover most market share, while leaching solvents are used to extract oils from the pressed sesame cake to improve the utilization of the raw materials. β-carbolines are nonpolar heterocyclic aromatic amines with good solubility in leaching solvents (n-hexane); therefore, the β-carbolines in s
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Paula, Jéssica C., Nilma S. Fernandes, Thaysa K. Karam та ін. "β-carbolines RCC and C5 induce the death of Leishmania amazonensis intracellular amastigotes". Future Microbiology 17, № 2 (2022): 99–110. http://dx.doi.org/10.2217/fmb-2020-0263.

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Background: Cutaneous leishmaniasis is caused by Leishmania spp., and its treatment is limited. The β-carbolines have shown activity against kinetoplastids. Aim: To evaluate the activity and effects of the β-carbolines, N-{2-[(4,6-bis(isopropylamino)-1,3,5-triazin-2-yl)amino]ethyl}-1-(4-methoxyphenyl)-β-carboline-3-carboxamide (RCC) and N-benzyl-1-(4-methoxy)phenyl-9H-beta-carboline-3-carboxamide (C5), against L. amazonensis intracellular amastigotes and to suggest their mechanism of action. Methods: We analyzed the activity and cytotoxicity of β-carbolines and the morphological alterations by
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Kamal, Ahmed, Manda Sathish, A. V. G. Prasanthi та ін. "An efficient one-pot decarboxylative aromatization of tetrahydro-β-carbolines by using N-chlorosuccinimide: total synthesis of norharmane, harmane and eudistomins". RSC Advances 5, № 109 (2015): 90121–26. http://dx.doi.org/10.1039/c5ra16221a.

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Liu, Wei, Zhaoyu Yang, Lili Shi та Yun Li. "Bioactive β-Carbolines Harman and Norharman in Sesame Seed Oils in China". Molecules 27, № 2 (2022): 402. http://dx.doi.org/10.3390/molecules27020402.

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The β-carbolines in our diet, mainly including harman and norharman, are a group of biologically active, naturally occurring plant-derived alkaloids. Fragrant sesame seed oil is one of the most popular flavor edible oils in China. Considering that sesame seeds are roasted at 200–240 °C during the processing of flavor sesame seed oils, it is meaningful to investigate the levels of β-carboline compounds in various sesame seed oils. In this work, the levels of β-carbolines (harman and norharman) in different types of sesame seed oils in China (e.g., pressed fragrant sesame oil, ground fragrant se
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Singh, Manpreet, Avijit Kumar Paul та Virender Singh. "A transition metal-free approach towards the regioselective synthesis of β-carboline tethered pyrroles and 2,3-dihydro-1H-pyrroles". New Journal of Chemistry 44, № 28 (2020): 12370–83. http://dx.doi.org/10.1039/d0nj02315a.

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A transition metal-free one-pot sequential approach has been unfolded for the synthesis of β-carboline tethered pyrroles and 2,3-dihydro-1H-pyrroles by using highly diverse 1-formyl-9H-β-carbolines as a template.
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Dissertations / Theses on the topic "Β-Carbolines"

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Baron, Marc. "Développement de nouvelles méthodologies pour la synthèse de spirotétrahydro-β-carbolines". Phd thesis, Université Claude Bernard - Lyon I, 2014. http://tel.archives-ouvertes.fr/tel-00985371.

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Ces travaux ont consisté à optimiser une voie de synthèse des spirotétrahydro-β-carbolines. Une stratégie en trois étapes à partir du 3-(2-nitrovinyl)indole a été élaborée avec la séquence linéaire suivante : addition de Michael, réduction de la fonction nitro en amine et cyclisation de Pictet-Spengler. L'addition de Michael a été développée sans protection préalable de l'indole sous activation ultrasons. La réduction de la fonction nitro en amine a été menée en présence d'hypophosphites. Au cours de cette étude, la désoxygénation des cétones aromatiques a été identifiée comme réaction seconda
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Béghyn, Terence. "Activité antiplasmodiale de nouvelles tétrahydro-β-carbolines chirales : découverte et optimisation". Lille 2, 2006. http://www.theses.fr/2006LIL2S044.

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Chaque année, des millions de personnes sont infectées par Plasmodium, le parasite responsable du Paludisme. Les résistances nombreuses aux antipaludiques classiques ont créé un réel besoin de nouveaux traitements. Il est aujourd'hui essentiel de découvrir des molécules actives sur de nouvelles cibles antiparasitaires. Nous avons utilisé une stratégie peu courante consistant à s'inspirer de toutes les connaissances acquises sur une cible humaine pour concevoir des composés actifs sur une cible orthologue plasmodiale. Les phosphodiestérase (PDE) sont des enzymes responsables de l'hydrolyse des
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Mousa, Souad Abd. "Photochemistry of β-carbolines and azine dyes in solution and colloidal systems". Thesis, Swansea University, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.678433.

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Adam, Stéphane. "Alkylation diastéréosélective d'amides. Application à la synthèse asymétrique de tétrahydroisoquinoléines et de tétrahydro-β-carbolines". Rouen, 2001. http://www.theses.fr/2001ROUES008.

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Dans notre travail, nous décrivons la première application d'un acide carboxylique chiral comme auxiliaire dans une réaction d'alkylation diastéréosélective en α d'azote de composés hétérocycliques. L'acide L-2, 3, 4, 6 Di-O-isopropilydène-2-céto-gulonique (DIGA) a été choisi en raison de sa structure. Il a été utilisé pour alkyler des tétrahydroisoquinoléines, des tétrahydro-β-carbolines, et des benzyles amines avec des excès supérieurs à 80 %. Une première série d'expériences a permis d'apporter des informations sur le mécanisme. Grâce à une réaction de transmétallation étain/lithium, nous a
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Martin, Nicolas Joseph. "Approche génétique et chimique de deux espèces endémiques de Polynésie française : terminalia glabrata et Rauvolfia nukuhivensis." Thesis, Polynésie française, 2014. http://www.theses.fr/2014POLF0003.

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Terminalia glabrata et Rauvolfia nukuhivensis sont deux espèces végétales polynésiennes endémiques et menacées d’extinction. T. glabrata cohabite avec T. catappa, commune du Pacifique, ce qui contribuerait à sa vulnérabilité par interfertilité. R. nukuhivensis souffre de problèmes de régénération en raison de stress climatiques, de prédation et d’exploitation anthropique. Des approches de génétique et de chimie ont été developpées afin d’étudier ces deux espèces. Pour T. glabrata, les résultats de « barcoding » ont permis d’établir une très forte proximité génétique avec T. catappa. L’analyse
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Xu, Ying. "Interprétation thermochimique des interactions non-covalentes induites par les β-carbolines et origine de la stabilité de complexe ADN/médicament en phase gazeuse". Paris 6, 2007. http://www.theses.fr/2007PA066387.

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Une exploration sur les complexes non-covalents duplex/ligand en phase gazeuse a été réalisé, pour montrer comment certains médicaments interagissent avec l’ADN. Nous avons d’abord tenté une interprétation thermochimique des interactions non-covalentes entre l’ADN et les -carbolines (et les bis--carbolines), pour trouver des indices expliquant leurs relations structure/activité. Ainsi, il serait possible de rechercher de nouveaux composés de plus forte activité. Ensuite, l’origine de la stabilité de complexes non-covalents a été étudiée en ESI-FT/ICR, en utilisant le Hoechst 33258 comme modè
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Östergren, Anna. "Selective Retention of β-Carbolines and 7,12-Dimethylbenz[a]anthracene in the Brain : Role of Neuromelanin and Cytochrome P450 for Toxicity". Doctoral thesis, Uppsala universitet, Institutionen för farmaceutisk biovetenskap, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-5941.

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The ß-carbolines norharman and harman structurally resemble the synthetic compound 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) that is known for its ability to damage neuromelanin-containing dopaminergic neurons of the substantia nigra and thereby induce parkinsonism. MPTP is, however, not normally present in the environment whereas the ß-carbolines are present in cooked food and tobacco smoke. In this thesis it was demonstrated that norharman and harman had affinity to melanin and were retained in neuromelanin-containing neurons of frogs up to 30 days post-injection (the longest surv
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Rauh, Juliane. "Neurodegeneration und Neuroprotektion bei der Parkinson-Krankheit: Untersuchungen von β-Carbolinen und dem Dopaminagonisten Lisurid in der dopaminergen mesencephalen Primärzellkultur des Mausstammes C57Bl/6". Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2008. http://nbn-resolving.de/urn:nbn:de:bsz:14-ds-1208226272174-93649.

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β-Carboline sind heterozyklische Indolalkaloide, die ubiquitär in unserer Umwelt und Nahrung vorkommen, aber auch endogen aus Tryptophan gebildet werden können. Aufgrund der strukturellen Verwandtschaft bestimmter β-Carboline zu dem dopaminergen Neurotoxin MPP+ wird ein möglicher Beitrag zur Pathogenese der Parkinson-Krankheit diskutiert. MPP+ ist seit langem für seine selektive Toxizität gegenüber dopaminergen Neuronen und das Auslösen von Parkinsonsymptomen bekannt. Insbesondere 2,9-DiMe-BC wurde in erhöhter Konzentration in der lumbalen cerebrospinalen Flüssigkeit von Parkinsonpatienten det
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Rauh, Juliane. "Neurodegeneration und Neuroprotektion bei der Parkinson-Krankheit: Untersuchungen von β-Carbolinen und dem Dopaminagonisten Lisurid in der dopaminergen mesencephalen Primärzellkultur des Mausstammes C57Bl/6". Doctoral thesis, Technische Universität Dresden, 2007. https://tud.qucosa.de/id/qucosa%3A24147.

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β-Carboline sind heterozyklische Indolalkaloide, die ubiquitär in unserer Umwelt und Nahrung vorkommen, aber auch endogen aus Tryptophan gebildet werden können. Aufgrund der strukturellen Verwandtschaft bestimmter β-Carboline zu dem dopaminergen Neurotoxin MPP+ wird ein möglicher Beitrag zur Pathogenese der Parkinson-Krankheit diskutiert. MPP+ ist seit langem für seine selektive Toxizität gegenüber dopaminergen Neuronen und das Auslösen von Parkinsonsymptomen bekannt. Insbesondere 2,9-DiMe-BC wurde in erhöhter Konzentration in der lumbalen cerebrospinalen Flüssigkeit von Parkinsonpatienten det
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Dorey, Gilbert. "Étude de l'importance de l'orientation de la fonction carbonylée de carbonyl-3 béta-carbolines sur l'affinité pour le récepteur des benzodiazépines : synthèse d'un nouvel hybride de type diazépino-béta-carboline." Paris 11, 1989. http://www.theses.fr/1989PA112416.

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Les travaux dont cette thèse a fait l'objet sont présentés en trois parties et ont comme base commune la chimie du noyau -carboline-3,4 disubstitué. Notre but était la synthèse de molécules actives au niveau du système nerveux central et en particulier vis-à-vis du récepteur des benzodiazépines. -Le sujet de la première partie de ce mémoire porte sur une étude de la conformation du groupement carbonyle de quelques ligands de type carbonyl-3. β-carboline. Des analogues rigides de β-carbolines carboxylate-3 d'alkyle et de N-alkyl β-carbolines carboxamide-3 ont été synthétisés et leur activité bi
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Books on the topic "Β-Carbolines"

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Ameta, Keshav Lalit. β-Carbolines. CRC Press, 2024. http://dx.doi.org/10.1201/9781351058032.

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Stephens, David N., ред. Anxiolytic β-Carbolines. Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-78451-4.

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Book chapters on the topic "Β-Carbolines"

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Ameta, Chetna, Monika Kumawat, Dharmendra та Mukesh Kumar. "β-Carbolines as Antioxidant". У β-Carbolines. CRC Press, 2024. http://dx.doi.org/10.1201/9781351058032-7.

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Teli, Pankaj, Shivani Soni, Sunita Teli, Dinesh K. Agarwal, Dinesh K. Jangid та Shikha Agarwal. "β-Carbolines as Kinase Inhibitors". У β-Carbolines. CRC Press, 2024. http://dx.doi.org/10.1201/9781351058032-4.

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Parikh, Jaymin, Keyur Bhatt та Kuldeep V. Joshi. "β-Carbolines as Anti-HIV Agents". У β-Carbolines. CRC Press, 2024. http://dx.doi.org/10.1201/9781351058032-9.

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Pansare, Dattatraya, Rohini Shelke, Rajita Ingle та ін. "β-Carbolines as Antifungal Agents". У β-Carbolines. CRC Press, 2024. http://dx.doi.org/10.1201/9781351058032-3.

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Singh, Shivendra, та Shivangi Sharma. "β-Carbolines as Antibacterial Agents". У β-Carbolines. CRC Press, 2024. http://dx.doi.org/10.1201/9781351058032-2.

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Godse, Jagannath S., Santosh B. Gaikwad, Sunil U. Tekale, Sanjay B. Ubale та Rajendra P. Pawar. "Antimalarial Activity and β-Carboline Derivative". У β-Carbolines. CRC Press, 2024. http://dx.doi.org/10.1201/9781351058032-6.

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Akhmetova, Vnira R., Danil V. Leont'ev та Nail S. Akhmadiev. "Sulfur-containing β-Carbolines". У β-Carbolines. CRC Press, 2024. http://dx.doi.org/10.1201/9781351058032-5.

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Jangir, Nidhi, Surendra Kumar Bagaria, Surabhi Dhadda, Shikha Agarwal та Dinesh Kumar Jangid. "β-Carbolines as Anti-inflammatory and Antidepressant Agents". У β-Carbolines. CRC Press, 2024. http://dx.doi.org/10.1201/9781351058032-8.

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Borade, Ravikumar M., Devidass S. Bhagat, Swati B. Kale, Dhanraj P. Kamble, Saroj R. Bembalkar та Rajendra P. Pawar. "β-Carbolines as Anti-Cancer Agents". У β-Carbolines. CRC Press, 2024. http://dx.doi.org/10.1201/9781351058032-1.

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Braestrup, C., та M. Nielsen. "Discovery of β-Carboline Ligands for Benzodiazepine Receptors". У Anxiolytic β-Carbolines. Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-78451-4_1.

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Conference papers on the topic "Β-Carbolines"

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Barbosa, Valéria Aquilino, Camila de Menezes Kisukuri, Renata Sespede Mazia, Tania Ueda-Nakamura, Celso V. Nakamura та Maria Helena Sarragiotto*. "Synthesis and anti-HSV-1 activity of novel β-carbolines containing a substituted thiazolidin-4-one ring at C-3". У 15th Brazilian Meeting on Organic Synthesis. Editora Edgard Blücher, 2013. http://dx.doi.org/10.5151/chempro-15bmos-bmos2013_2013915174811.

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Ahmed, Nermin, Esraa El-Halawaty, Howaida AlSeedy, Tarryn Swart, Heinrich Hoppe та Ashraf Abadi. "Design, synthesis and biological evaluation of novel tetrahydro-β-carboline derivatives with potent anti-plasmodial activity". У 7th International Electronic Conference on Medicinal Chemistry. MDPI, 2021. http://dx.doi.org/10.3390/ecmc2021-11356.

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Gaikwad, Sunil. "Synthesis, ADME, and In Silico Molecular Docking Study of Novel N-Substituted β-Carboline Analogs as a Potential Anticancer Agent". У ECSOC 2024. MDPI, 2024. https://doi.org/10.3390/ecsoc-28-20166.

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