Добірка наукової літератури з теми "Amino-carboxylic"
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Статті в журналах з теми "Amino-carboxylic"
Siutkina, Alena I., Ramiz R. Makhmudov, and Daria A. Shipilovskikh. "Synthesis and analgesic activity evaluation of derivatives of 2-[(1,4-dioxo-1-amino-4-arylbutyl-2-en-2-yl)amino]-4,5,6,7-tetrahydrobenzo[<i>b</i>]thiophene-3-carboxylic acid." Chimica Techno Acta 8, no. 4 (November 22, 2021): 20218404. http://dx.doi.org/10.15826/chimtech.2021.8.4.04.
Повний текст джерелаКудрявский, Дмитрий Леонович, Елена Константиновна Фомина, Людмила Юльевна Тычинская, Евгений Доминикович Скаковский та Светлана Евгеньевна Богушевич. "NMR spectroscopy of Cu(II) complexes with acrylamide and sodium acrylate copolymer and ω-amino acids". Journal of the Belarusian State University. Chemistry, № 1 (12 квітня 2021): 85–98. http://dx.doi.org/10.33581/2520-257x-2021-1-85-98.
Повний текст джерелаLynch, Daniel E., Tariq Latif, Graham Smith, Karl A. Byriel, Colin H. L. Kennard, and Simon Parsons. "Molecular Cocrystals of Carboxylic Acids. XXXI Adducts of 2-Aminopyrimidine and 3-Amino-1,2,4-triazole with Heterocyclic Carboxylic Acids." Australian Journal of Chemistry 51, no. 5 (1998): 403. http://dx.doi.org/10.1071/c97201.
Повний текст джерелаShahmohammadi, Sayeh, Ferenc Fülöp та Enikő Forró. "Efficient Synthesis of New Fluorinated β-Amino Acid Enantiomers through Lipase-Catalyzed Hydrolysis". Molecules 25, № 24 (17 грудня 2020): 5990. http://dx.doi.org/10.3390/molecules25245990.
Повний текст джерелаWermuth, Urs D., Ian D. Jenkins, Raymond C. Bott, Karl A. Byriel, and Graham Smith. "Some Stereochemical Aspects of the Strecker Synthesis and the Bucherer - Bergs Reaction." Australian Journal of Chemistry 57, no. 5 (2004): 461. http://dx.doi.org/10.1071/ch03202.
Повний текст джерелаLynch, Daniel E., Laura J. Nicholls, Graham Smith, Karl A. Byriel, and Colin H. L. Kennard. "Molecular co-crystals of 2-aminothiazole derivatives." Acta Crystallographica Section B Structural Science 55, no. 5 (October 1, 1999): 758–66. http://dx.doi.org/10.1107/s0108768199003146.
Повний текст джерелаAdams, Jerry L., Teng Man Chen, and Brian W. Metcalf. "4-Amino-4,5-dihydrothiophene-2-carboxylic acid." Journal of Organic Chemistry 50, no. 15 (July 1985): 2730–36. http://dx.doi.org/10.1021/jo00215a027.
Повний текст джерелаLI, JORGE P., TOBIAS O. YELLIN, CHARLES W. DEBROSSE, and DRAKE S. EGGLESTON. "3-Amino-2-piperidinone-6-carboxylic acid." International Journal of Peptide and Protein Research 34, no. 4 (January 12, 2009): 311–18. http://dx.doi.org/10.1111/j.1399-3011.1989.tb01580.x.
Повний текст джерелаSteinschneider, A., B. Valentine, M. I. Burgar, and D. Fiat. "NMR of carboxylic-17O in amino acids." Magnetic Resonance in Chemistry 23, no. 2 (February 1985): 104–10. http://dx.doi.org/10.1002/mrc.1260230211.
Повний текст джерелаMoustafa, Moustafa Sherief, Saleh Mohammed Al-Mousawi, Maghraby Ali Selim, Ahmed Mohamed Mosallam, and Mohamed Hilmy Elnagdi. "Organobase-catalyzed three-component reactions for the synthesis of 4H-2-aminopyrans, condensed pyrans and polysubstituted benzenes." Beilstein Journal of Organic Chemistry 10 (January 14, 2014): 141–49. http://dx.doi.org/10.3762/bjoc.10.11.
Повний текст джерелаДисертації з теми "Amino-carboxylic"
Dobson, Allison J. "X-ray diffraction investigations of quinoline and amino carboxylic acids /." The Ohio State University, 1998. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487949836206992.
Повний текст джерелаBadiani, Kamal. "Synthesis and evaluation of enzyme inhibitors based on amino- and cyclopropane carboxylic acids." Thesis, University of St Andrews, 1997. http://hdl.handle.net/10023/14052.
Повний текст джерелаMarsh, Paul Robert. "3-Azido-tetrahydrofuran carboxylates as scaffolds for oligomers of β-amino-THF carboxylic acids". Thesis, University of Oxford, 2002. https://ora.ox.ac.uk/objects/uuid:749edfc8-8e18-4811-9247-8e29a3f54c7b.
Повний текст джерелаChampion, Susan M. "Asymmetric synthesis of 2-amino carboxylic acids and the synthesis of novel phosphono-compounds." Thesis, University of Bristol, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.260485.
Повний текст джерелаLundberg, Helena. "Group (IV) Metal-Catalyzed Direct Amidation : Synthesis and Mechanistic Considerations." Doctoral thesis, Stockholms universitet, Institutionen för organisk kemi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-116955.
Повний текст джерелаAmidbindningen är en kemisk enhet som utgör ryggraden i proteiner, och som även återfinns i en stor mängd läkemedelsmolekyler, polymera material som nylon och Kevlar, samt i tillsatser i livsmedelsindustrin, exempelvis aspartam. Amider produceras i enorma mängder varje år, och det är av stor vikt att utveckla miljövänliga och selektiva metoder för deras framställning. Denna avhandling behandlar direkt amidering av icke-aktiverade karboxylsyror och aminer med hjälp av katalytiska mängder metallkomplex, baserade på titan, zirkonium och hafnium. Den enda biprodukten från denna amideringsreaktion är vatten. Jämfört med de metoder som generellt används idag för amidsyntes, så är de presenterade metoderna avsevärt mer miljövänliga med avseende på toxicitet hos reagensen såväl som på mängden avfall som genereras. Dessutom redovisas här en katalytisk metod för syntes av primära och tertiära amider genom att använda olika karbamat som källa till gasformiga aminer, vilka annars kan vara praktiskt svåra att arbeta med. Preliminära resultat från en pågående mekanistisk studie av de zirkonium- och hafnium-katalyserade processerna är också inkluderade.
At the time of the doctoral defense, the following paper was unpublished and had a status as follows: Paper 2: Accepted.
Navin, V. "One-Pot Synthesis Of Chiral Disulfides & Diselenides From α-Amino Acids Mediated By Ammonium Tetrathiomolybdate In Water". Thesis, Indian Institute of Science, 2001. http://hdl.handle.net/2005/268.
Повний текст джерелаHu, Zilun. "CONSTRAINED β–PROLINES: I. METHANOPYRROLIDINE β-AMINO ACIDS: SYNTHESIS AND CHARACTERIZATION OF NOVEL C6- SUBSTITUTED ANALOGUES AND PEPTIDE OLIGOMERS II. SYNTHESIS OF 2,2-DISUBSTITUTED PYRROLIDINE-3-CARBOXYLIC ACIDS". Diss., Temple University Libraries, 2015. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/339315.
Повний текст джерелаPh.D.
In the study of structurally restricted cyclic β-amino acids and peptides, methanopyrrolidine-5-carboxylic acids (MetPyr-5-acids), or 5-syn-carboxy-2-azabicyclo[2.1.1] hexanes, and derivatives were investigated. MetPyr-5-acids are a series of highly conformationally constrained β-proline derivatives, which belong to a novel category of β-amino acids utilized as building blocks for the synthesis of β-peptides. These β-peptides lack the backbone hydrogen bonds necessary for folding in the usual manner. Substituents and functional groups in this ring system were envisioned to impact the folding properties and functionalities of the corresponding β-peptides. In the present study, the analogues of MetPyr-5-acids with C6- substitutions were prepared, and the folding properties of their peptides were explored. To introduce different functionalities at C6 in MetPyr-5-acids, 6-syn-hydroxymethyl substituted derivatives were synthesized and were used as key intermediates. In the synthesis of this core structure, the major steps in their preparation included the Michael addition of benzyloxymethyl allyl amine to 3-butynone, followed by UV light irradiation of the diene to afford 5-acetyl-6-benzyloxymethyl-2-azabicyclo[2.1.1]hexane. Haloform (Br2/NaOH) oxidation of the acetyl group leads to the 6-substituted MetPyr-5-acid. Resolution of the racemate was achieved either by resolving (±)-6-syn-benzyloxymethyl-MetPyr-5-acid via a classical crystallization resolution method using (S)-(-)-α-methylbenzylamine, or by chiral preparative HPLC separation of (±)-6-syn-benzyloxymethyl-MetPyr-5-acid methyl ester. The absolute stereochemistry was confirmed by X-ray crystallography of a derivative. Novel analogs with a range of functionalities incorporated at the C6 position in MetPyr-5-acid were synthesized from 6-syn-hydroxymethyl-MetPyr-5-acid methyl ester, and include hydrophilic groups such as hydroxyl, amino, methyl ether, and hydrophobic groups, such as substituted phenyl groups and triazole. From the protected C6-substituted analogs of MetPyr-5-acids, peptide oligomers of C6-benzyloxymethyl-2,4-methanopyrrolidine-b-amino acid were prepared up to the length of octomer in high yields. This series of oligomers were characterized by circular dichroism (CD) and indicated enhanced order of folding uniformity for the tetramer and up, with increasing ordered folding for longer oligomers. The octomer exhibited minimal solvent effects, and was stable with increasing temperature up to 80 °C. Analysis by NMR of the iso-butyric amide capped monomer indicated a mixture of cis/trans conformation favoring the cis conformation. This was slightly different from the C6 unsubstituted iso-butyric amide derivative, which favored the trans conformation. For the dipeptide, the C6-benzyloxymethyl substitution increased the percentage of cis conformation of the dipeptide amide bond, but the major peptide had the trans conformation. This demonstrated that C6 substitutions could shift the cis/trans equilibrium towards the cis conformation. Longer oligomers showed ordered secondary folding structure as demonstrated by the increase in ellipticity per amino acid unit, but was too complicated to be determined by NMR analysis. Both the CD patterns and molecular model calculation predicted that the longer oligomers (tetramer and above) favor the trans conformation. This preference was driven by the backbone dipole effect. II. SYNTHESIS OF 2,2-DISUBSTITUTED PYRROLIDINE-3-CARBOXYLIC ACIDS Due to the perceived steric influence of 2,2-disubstitution in the pyrrolidine-3-carboxylic acid, it is believed that the adjacent amide/peptide bonds should result in a trans amide bond conformation. Because of the difficulty in introducing disubstitution at the hindered C2 position, the synthesis of such derivatives has not been successful. For this reason a new method was introduced to prepare novel derivatives, at the N- and C- termini of protected 2,2-dimethyl pyrrolidine-3-carboxylic acid, i.e., benzyloxycarbonyl protected 2,2-dimethylpyrrolidine-3-carboxylate. This procedure included the Michael addition of 2-nitropropane to dimethyl fumarate, followed by ring closure of the amino ester derived from reduction of the nitro ester providing the pyrrolidinone. Reduction of the pyrrolidinone to the pyrrolidine with borane finished 2,2-dimethylpyrrolidine-3-carboxylate in moderate overall yield. A preliminary set of two amides, iso-butyric amide and 3,5-dichlorobenzamide of this 2,2-dimethylpyrrolidine-3-carboxylate, were also prepared. NMR analysis of this pyrrolidine derivative suggested the amide bonds adopted the trans conformation. It was concluded that steric bulk of the 2,2-disubstitution favorably influenced the trans amide conformation. This demonstrated that trans amide conformation control of a β-proline amide was possible.
Temple University--Theses
Olszewski, Tomasz Krzysztof. "Original syntheses of new biomolecules : from imidazole and thiazole derivatives of α-aminophosphonic acids and γ-amino-α, β-dihydroxy carboxylic acid derivatives to disaccharide mimics". Montpellier 2, 2006. http://www.theses.fr/2006MON20017.
Повний текст джерелаRocha, Sandra Carla. "Avaliação das perspectivas terapêuticas do ácido L-tiazolidina-4-carboxílico, um análogo de prolina, na infecção de camundongos pelo Trypanosoma cruzi." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/42/42135/tde-16082011-160411/.
Повний текст джерелаTrypanosoma cruzi is dependent on proline for a variety of processes such as energy metabolism, host cell invasion, differentiation and resistance to osmotic, metabolic and oxidative stress. L-thiazolidine-4-carboxylic acid (T4C), a proline structural analogue, inhibits the proline uptake and interacts with several stress factors that the parasite undergoes throughout its life cycle. Herein, we evaluated the T4C effects on mice infection by T. cruzi. It was observed a reduction of 49% of the parasitemia peak in infected mice that were treated with a unique dose of T4C (100 mg/Kg). Histological and quantitative PCR analysis of several tissues revealed a significant reduction of parasite load in the intestine (100 or 150 mg/kg). In the other hand, the unique dose of 200 mg/Kg reduced the body weight and survival of non-infected mice. A T4C prolonged treatment (10 mg/Kg day), did not diminish the parasitemia, but increased survival and reduced the parasite load in the intestine. T4C did not affect the gene expression of g-IFN and IL-10 in any of the organs analyzed (heart, spleen, intestine). In conclusion, T4C-treatment contributes to reduce the virulence of T. cruzi infection, but it was toxic in doses over 150 mg/kg.
Bianco, Angelica. "Formation photoinduite du radical hydroxyle dans la phase aqueuse du nuage : impact sur les acides carboxyliques et les acides aminés." Thesis, Clermont-Ferrand 2, 2016. http://www.theses.fr/2016CLF22746/document.
Повний текст джерелаClouds represent a multiphase complex and reactive medium in which gases, liquid particles and aerosols are in continuous interaction. A large fraction of atmospheric chemical compounds present in the particulate and gaseous phases can be transferred to the cloud droplets where can undergo chemical, photochemical and microbiological transformations. Cloud waters were sampled at the puy de Dôme station. The first part of my PhD work is focused on the photoreactivity of cloud water. Formation of a reactive species such as hydroxyl radical, by direct photolysis of inorganic sources was investigated, as well as the correlation between the concentration of sources and the hydroxyl radical formation rate. The spectroscopic proprieties and fate of tartronic acid, were investigated under cloud water conditions. Moreover, photochemical experiments were performed using continuous irradiation (direct and hydroxyl radical mediated photolysis) and nanosecond flash photolysis in order to assess the reactivity of this compound in cloud aqueous phase. The second part of my work is centered on the characterization of organic matter in clouds. Two studies are presented: i) Detection and quantification of tryptophan by fluorescence spectroscopy and the assessment of its reactivity; ii) detection and quantification of amino acids. Amino acids are detected for the first time in cloud water using a derivatization method and this work show that they represent the 9% of the dissolved organic matter in cloud. Their reactivity with hydroxyl radical was compared to the reactivity of carboxylic acids and dissolved organic matter. These results clearly demonstrate that amino acids represent a major sink of hydroxyl radicals in cloud water
Книги з теми "Amino-carboxylic"
Sheu, Shwu-Meei. Characterization and purification of [̳t̳r̳i̳a̳n̳g̳l̳e̳]̳-pyrroline-5-carboxylic acid reductase in Schistosoma mansoni. 1985.
Знайти повний текст джерелаЧастини книг з теми "Amino-carboxylic"
Böning, Dieter, Michael I. Lindinger, Damian M. Bailey, Istvan Berczi, Kameljit Kalsi, José González-Alonso, David J. Dyck, et al. "α-amino Carboxylic Acid." In Encyclopedia of Exercise Medicine in Health and Disease, 57. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-540-29807-6_4001.
Повний текст джерелаBährle-Rapp, Marina. "4-Amino-2-Nitrodiphenylamine-2′-Carboxylic Acid." In Springer Lexikon Kosmetik und Körperpflege, 30. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_497.
Повний текст джерелаWang, Ruiyao, and Zhiping Zheng. "Rare Earth Complexes with Carboxylic Acids, Polyaminopolycarboxylic Acids, and Amino Acids." In Rare Earth Coordination Chemistry, 91–136. Chichester, UK: John Wiley & Sons, Ltd, 2010. http://dx.doi.org/10.1002/9780470824870.ch3.
Повний текст джерелаTritt-Goc, J., and D. Fiat. "A Determination of the Dynamical Parameters in Amino Acids from Carboxylic- 17O NMR Linewidths Measurements." In 25th Congress Ampere on Magnetic Resonance and Related Phenomena, 584–85. Berlin, Heidelberg: Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-76072-3_307.
Повний текст джерелаYunes, J. S., P. Rowell, and N. W. Kerby. "Growth and Amino Acid Liberation by a Mutant Strain of Anabaena Variabilis Resistant to the Amino Acid Analogue Azetidine 2-Carboxylic Acid." In Nitrogen Fixation, 519–20. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3486-6_105.
Повний текст джерелаVan Der Straeten, Dominique, Luc Van Wiemeersch, Jozef Van Damme, Howard Goodman, and Marc Van Montagu. "Purification and Amino-Acid Sequence Analysis of 1-Aminocyclopropane-1-Carboxylic Acid Synthase from Tomato Pericarp." In Biochemical and Physiological Aspects of Ethylene Production in Lower and Higher Plants, 93–100. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-1271-7_11.
Повний текст джерелаGonzález-Muñiz, R., M. J. Dominguez, M. T. García-López, I. Gómez-Monterrey, and J. R. Harto. "An efficient synthesis of 8-amino-3-oxoindolizidine-2-carboxylic acid and derivatives as model peptidomimetics." In Peptides 1990, 366–67. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3034-9_153.
Повний текст джерелаJeanmart, Stephane. "Amino Acids as Nonselective Herbicides." In Bioactive Carboxylic Compound Classes: Pharmaceuticals and Agrochemicals, 315–24. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2016. http://dx.doi.org/10.1002/9783527693931.ch23.
Повний текст джерелаIshikawa, T. "From 5-Amino-2,6-dihydroxypyrimidine-4-carboxylic Acid." In Six-Membered Hetarenes with Two Identical Heteroatoms, 1. Georg Thieme Verlag KG, 2004. http://dx.doi.org/10.1055/sos-sd-016-01777.
Повний текст джерелаGalembeck, Fernando, Gabriela Alves Macedo, and Yara Csordas. "Chemicals from Sugarcane." In Materials for a Sustainable Future, 246–78. The Royal Society of Chemistry, 2012. http://dx.doi.org/10.1039/bk9781849734073-00246.
Повний текст джерелаТези доповідей конференцій з теми "Amino-carboxylic"
De Kimpe, Norbert, Antonio Salgado, Annelies Eeckhaut, and Johan Van der Eycken. "Enzyme-mediated synthesis of (1S)-1-amino-2,2-dimethylcyclopropane-1-carboxylic acid." In The 4th International Electronic Conference on Synthetic Organic Chemistry. Basel, Switzerland: MDPI, 2000. http://dx.doi.org/10.3390/ecsoc-4-01804.
Повний текст джерелаUphoff, Andreas. "Formation and reactions of cluster ions from aromatic carboxylic acids together with amino acids and small peptides." In RESONANCE IONIZATION SPECTROSCOPY 2000: Laser Ionization and Applications Incorporating RIS; 10th International Symposium. AIP, 2001. http://dx.doi.org/10.1063/1.1405617.
Повний текст джерелаMaya, K., Lalita Rane, Tousief Irshad Ahmed, Mohammad Javed Ansari, Chandra Kumar Dixit, and Rahul Kanaoujiya. "L-Cysteine Passivated Carbon Quantum Dots as Biosensor for early Stage Detection of Prostate Cancer." In International Conference on Recent Advancements in Biomedical Engineering. Switzerland: Trans Tech Publications Ltd, 2022. http://dx.doi.org/10.4028/p-x65kwp.
Повний текст джерелаLara Orozco, Ricardo A., Ryosuke Okuno, and Larry W. Lake. "Analytical Solutions for the Injection of Wettability Modifiers in Carbonate Reservoirs Based on a Reduced Surface Complexation Model." In SPE Annual Technical Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/206088-ms.
Повний текст джерелаЗвіти організацій з теми "Amino-carboxylic"
Pesis, Edna, and Mikal Saltveit. Postharvest Delay of Fruit Ripening by Metabolites of Anaerobic Respiration: Acetaldehyde and Ethanol. United States Department of Agriculture, October 1995. http://dx.doi.org/10.32747/1995.7604923.bard.
Повний текст джерела