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Journal articles on the topic 'Aromatic amino'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Turk, Nina, Hans Demol, Andre Skirtach, Roel Baets, and Kris Gevaert. "Towards SERS-based multiplexed monitoring of protease activity using non-natural aromatic amino acids." EPJ Web of Conferences 238 (2020): 04001. http://dx.doi.org/10.1051/epjconf/202023804001.

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Surface Enhanced Raman Spectroscopy (SERS) allows sensitive and selective detection of protease activity by monitoring the cleavage of specific peptide substrates. Furthermore, it offers the possibility for multiplexing, during which the activity of two (or more) proteases with different specificities is detected simultaneously. To distinguish between the contributions of different proteases, different aromatic amino acids with non-overlapping SERS peaks need to be used as Raman reporters. As the three natural aromatic amino acids only offer limited possibilities for multiplexing, we examined

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2

Najm, Reem Suhail, Qader Abdullah Shannak, and Adil Hussein Dalaf. "Synthesis and Decoration of Aromatic Derivatives Nano Platelets by the Electric Method." Azerbaijan Pharmaceutical and Pharmacotherapy J 22, no. 2 (2023): 92–97. http://dx.doi.org/10.61336/appj/22-2-22.

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The present work consists of synthesizing a five-decorated aromatic amine derivatives. The decoration involves aromatic derivatives nano-platelets through an electric process using aromatic amine derivatives such as Sulfamethoxazole, \(2\)-Amino-\(6\)-chloro benzothiole, Trimethoprim, \(2\)-Amino benzoic acid, and \(4\)-Amino phenol. This process occurs in an electric cell containing platinum electrodes with a voltage of \(1.6\) volts, resulting in the production of compound \((R1,R5)\). These compounds were characterized and diagnosed using physical and spectroscopic methods, including infrar

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3

Mitchell, John B. O., C. Lilian Nandi, Shamimara Ali, et al. "Amino/aromatic interactions." Nature 366, no. 6454 (1993): 413. http://dx.doi.org/10.1038/366413a0.

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4

SCRUTTON, Nigel S., та Andrew R. C. RAINE. "Cation-π bonding and amino-aromatic interactions in the biomolecular recognition of substituted ammonium ligands". Biochemical Journal 319, № 1 (1996): 1–8. http://dx.doi.org/10.1042/bj3190001.

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Cation-π bonds and amino-aromatic interactions are known to be important contributors to protein architecture and stability, and their role in ligand-protein interactions has also been reported. Many biologically active amines contain substituted ammonium moieties, and cation-π bonding and amino-aromatic interactions often enable these molecules to associate with proteins. The role of organic cation-π bonding and amino-aromatic interactions in the recognition of small-molecule amines and peptides by proteins is an important topic for those involved in structure-based drug design, and although

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5

Uğur, Elif, and Reyhan Nergiz Ünal. "Diyette Proteinler, Aminoasitler ve Bazı Diğer Aminli Bileşiklerin Kardiyovasküler Sistem Üzerine Metabolik Etkileri." Turkish Journal of Agriculture - Food Science and Technology 5, no. 1 (2017): 71. http://dx.doi.org/10.24925/turjaf.v5i1.71-83.936.

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During the prevention and treatment of cardiovascular diseases, first cause of deaths in the world, diet has a vital role. While nutrition programs for the cardiovascular health generally focus on lipids and carbohydrates, effects of proteins are not well concerned. Thus this review is written in order to examine effect of proteins, amino acids, and the other amine consisting compounds on cardiovascular system. Because of that animal or plant derived proteins have different protein composition in different foods such as dairy products, egg, meat, chicken, fish, pulse and grains, their effects

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6

Lauweryns, J. M., and L. Van Ranst. "Immunocytochemical localization of aromatic L-amino acid decarboxylase in human, rat, and mouse bronchopulmonary and gastrointestinal endocrine cells." Journal of Histochemistry & Cytochemistry 36, no. 9 (1988): 1181–86. http://dx.doi.org/10.1177/36.9.2900264.

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Aromatic L-amino acid decarboxylase (AADC) catalyzes the cellular decarboxylation of L-aromatic amino acids and is therefore involved in the synthesis of several biogenic amines. Application of the indirect immunoperoxidase method on human, rat, and mouse tissues using specific antibodies to AADC revealed all AADC-containing cells. Besides mast cells and adrenergic nerve fibers, the following cells were immunostained: neuroendocrine cells in the tracheobronchial epithelium; neuroepithelial bodies in the bronchopulmonary epithelium; Kultschitzky cells in the small intestine and appendix as well

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7

Chen, Yaqi, Tao Li, Jianguo Li, et al. "Stabilization of peptides against proteolysis through disulfide-bridged conjugation with synthetic aromatics." Organic & Biomolecular Chemistry 15, no. 8 (2017): 1921–29. http://dx.doi.org/10.1039/c6ob02786e.

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We developed an efficient strategy for the stabilization of peptides against proteolysis, which involves noncovalent π–π interactions between aromatic amino acid residues in peptides and synthetic electron-deficient aromatics.

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8

Fuentes de Arriba, Angel L., Felix Urbitsch та Darren J. Dixon. "Umpolung synthesis of branched α-functionalized amines from imines via photocatalytic three-component reductive coupling reactions". Chemical Communications 52, № 100 (2016): 14434–37. http://dx.doi.org/10.1039/c6cc09172e.

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A three component reductive coupling reaction of a (hetero)aromatic amine, a (hetero)aromatic aldehyde and an electron deficient olefin catalysed by eosin Y under green LED light irradiation, for the direct generation of γ-amino acid derivatives, is described.

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9

Suresh Kumar, T. K. "Articulated aromatic amino acids." Trends in Biochemical Sciences 13, no. 5 (1988): 168. http://dx.doi.org/10.1016/0968-0004(88)90143-0.

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10

Nakazawa, Hidetsugu, Konosuke Sano, Keizo Matsuda, and Koji Mitsugi. "Enzymatic Preparation of Aromatic Ethylamines from AromaticL-Amino Acids." Bioscience, Biotechnology, and Biochemistry 57, no. 7 (1993): 1210–11. http://dx.doi.org/10.1271/bbb.57.1210.

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11

Šmídl, Petr, and Karel Pecka. "Chromatographic behaviour of aromatic hydrocarbons and heterocyclic compounds on silica gel with a chemically bonded amino phase." Collection of Czechoslovak Chemical Communications 50, no. 11 (1985): 2375–80. http://dx.doi.org/10.1135/cccc19852375.

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The chromatographic behaviour of a series of polycyclic aromatic hydrocarbons and heterocyclic compounds was investigated on Separon SIX NH2, a sorbent with chemically bonded amino groups. The effect of substitution and partial hydrogenation of the aromatics on their retention was examined. The achieved separation of aromatic hydrocarbons from their mixtures into groups, each containing substances with the same number of rings, was compared with that published for other, similar chromatographic materials. The effect of structure of some heterocyclic compounds on their affinity for the stationa

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12

Rijnen, Liesbeth, Sophie Bonneau, and Mireille Yvon. "Genetic Characterization of the Major Lactococcal Aromatic Aminotransferase and Its Involvement in Conversion of Amino Acids to Aroma Compounds." Applied and Environmental Microbiology 65, no. 11 (1999): 4873–80. http://dx.doi.org/10.1128/aem.65.11.4873-4880.1999.

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ABSTRACT In lactococci, transamination is the first step of the enzymatic conversion of aromatic and branched-chain amino acids to aroma compounds. In previous work we purified and biochemically characterized the major aromatic aminotransferase (AraT) of a Lactococcus lactis subsp. cremoris strain. Here we characterized the corresponding gene and evaluated the role of AraT in the biosynthesis of amino acids and in the conversion of amino acids to aroma compounds. Amino acid sequence homologies with other aminotransferases showed that the enzyme belongs to a new subclass of the aminotransferase

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13

Ward, Donald E., William M. de Vos, and John van der Oost. "Molecular analysis of the role of two aromatic aminotransferases and a broad-specificity aspartate aminotransferase in the aromatic amino acid metabolism ofPyrococcus furiosus." Archaea 1, no. 2 (2002): 133–41. http://dx.doi.org/10.1155/2002/959031.

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The genes encoding aromatic aminotransferase II (AroAT II) and aspartate aminotransferase (AspAT) fromPyrococcus furiosushave been identified, expressed inEscherichia coliand the recombinant proteins characterized. The AroAT II enzyme was specific for the transamination reaction of the aromatic amino acids, and uses α-ketoglutarate as the amino acceptor. Like the previously characterized AroAT I, AroAT II has highest efficiency for phenylalanine (kcat/Km= 923 s–1mM–1). Northern blot analyses revealed that AroAT I was mainly expressed when tryptone was the primary carbon and energy source. Alth

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14

Salter, M., R. G. Knowles, and C. I. Pogson. "Transport of the aromatic amino acids into isolated rat liver cells. Properties of uptake by two distinct systems." Biochemical Journal 233, no. 2 (1986): 499–506. http://dx.doi.org/10.1042/bj2330499.

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The transport of the aromatic amino acids into isolated rat liver cells was studied. There was a rapid and substantial binding of the aromatic amino acids, L-alanine and L-leucine to the plasma membrane. This has important consequences for the determination of rates of transport and intracellular concentrations of the amino acids. Inhibition studies with a variety of substrates of various transport systems gave results consistent with aromatic amino acid transport being catalysed by two systems: a 2-aminobicyclo(2,2,1)heptane-2-carboxylic acid (BCH)-insensitive aromatic D- and L-amino acid-spe

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15

Kukhar, V. P., Yu L. Yagupol'skii, I. I. Gerus, and M. T. Kolycheva. "Fluorine-containing aromatic amino acids." Russian Chemical Reviews 60, no. 9 (1991): 1050–58. http://dx.doi.org/10.1070/rc1991v060n09abeh001128.

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16

Burley, S. K., and G. A. Petsko. "Amino-aromatic interactions in proteins." FEBS Letters 203, no. 2 (1986): 139–43. http://dx.doi.org/10.1016/0014-5793(86)80730-x.

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17

Werner, Ernst R. "Three classes of tetrahydrobiopterin-dependent enzymes." Pteridines 24, no. 1 (2013): 7–11. http://dx.doi.org/10.1515/pterid-2013-0003.

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AbstractCurrent knowledge distinguishes three classes of tetrahydrobiopterin-dependent enzymes as based on protein sequence similarity. These three protein sequence clusters hydroxylate three types of substrate atoms and use three different forms of iron for catalysis. The first class to be discovered was the aromatic amino acid hydroxylases, which, in mammals, include phenylalanine hydroxylase, tyrosine hydroxylase, and two isoforms of tryptophan hydroxylases. The protein sequences of these tetrahydrobiopterin-dependent aromatic amino acid hydroxylases are significantly similar, and all mamma

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18

Tchipilov, Teodor, Klas Meyer, and Michael G. Weller. "Quantitative 1H Nuclear Magnetic Resonance (qNMR) of Aromatic Amino Acids for Protein Quantification." Methods and Protocols 6, no. 1 (2023): 11. http://dx.doi.org/10.3390/mps6010011.

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Hydrolysis of protein samples into amino acids facilitates the use of NMR spectroscopy for protein and peptide quantification. Different conditions have been tested for quantifying aromatic amino acids and proteins. The pH-dependent signal shifts in the aromatic region of amino acid samples were examined. A pH of 12 was found to minimize signal overlap of the four aromatic amino acids. Several aromatic compounds, such as terephthalic acid, sulfoisophthalic acid, and benzene tricarboxylic acid, were applied as internal standards. The quantification of amino acids from an amino acid standard was

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19

Lowe, P. N., and A. F. Rowe. "Aspartate: 2-oxoglutarate aminotransferase from trichomonas vaginalis. Identity of aspartate aminotransferase and aromatic amino acid aminotransferase." Biochemical Journal 232, no. 3 (1985): 689–95. http://dx.doi.org/10.1042/bj2320689.

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Aspartate: 2-oxoglutarate aminotransferase from the anaerobic protozoon Trichomonas vaginalis was purified to homogeneity and characterized. It is a dimeric protein of overall Mr approx. 100000. Only a single isoenzyme was found in T. vaginalis. The overall molecular and catalytic properties have features in common with both the vertebrate cytoplasmic and mitochondrial isoenzymes. The purified aspartate aminotransferase from T. vaginalis showed very high rates of activity with aromatic amino acids as donors and 2-oxoglutarate as acceptor. This broad-spectrum activity was restricted to aromatic

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20

Jones, Snake C., Christopher T. D. Price, Marina Santic, and Yousef Abu Kwaik. "Selective Requirement of the Shikimate Pathway of Legionella pneumophila for Intravacuolar Growth within Human Macrophages but Not within Acanthamoeba." Infection and Immunity 83, no. 6 (2015): 2487–95. http://dx.doi.org/10.1128/iai.00294-15.

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Legionella pneumophilautilizes the Dot/Icm type IV translocation system to proliferate within a vacuole in a wide variety of natural amoebal hosts and in alveolar macrophages of the human accidental host. AlthoughL. pneumophilautilizes host amino acids as the main sources of carbon and energy, it is not known whetherde novosynthesis of amino acids by intravacuolarL. pneumophilacontributes to its nutrition. ThearoBandaroEgenes encode enzymes for the shikimate pathway that generates the aromatic amino acids Phe, Trp, and Tyr. Here we show thearoBandaroEmutants ofL. pneumophilato be defective in

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21

Kumar, S. Ramesh, and P. Leelavathi. "Cadmium chloride-catalyzed regioselective opening of oxiranes with aromatic amines — An improved protocol for the synthesis of 2-amino alcohols." Canadian Journal of Chemistry 85, no. 1 (2007): 37–41. http://dx.doi.org/10.1139/v06-186.

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Epoxides undergo rapid CdCl2-catalyzed ring-opening reaction with aromatic amines in mild reaction conditions (room temperature), affording the corresponding 2-amino alcohols with high regioselectivity.Key words: epoxides, aromatic amines, cadmium chloride, 2-amino alcohols.

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22

Barik, Sailen. "The Uniqueness of Tryptophan in Biology: Properties, Metabolism, Interactions and Localization in Proteins." International Journal of Molecular Sciences 21, no. 22 (2020): 8776. http://dx.doi.org/10.3390/ijms21228776.

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Tryptophan (Trp) holds a unique place in biology for a multitude of reasons. It is the largest of all twenty amino acids in the translational toolbox. Its side chain is indole, which is aromatic with a binuclear ring structure, whereas those of Phe, Tyr, and His are single-ring aromatics. In part due to these elaborate structural features, the biosynthetic pathway of Trp is the most complex and the most energy-consuming among all amino acids. Essential in the animal diet, Trp is also the least abundant amino acid in the cell, and one of the rarest in the proteome. In most eukaryotes, Trp is th

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23

Dršata, Jaroslav, and Eliška Marklová. "Metabolism of Tryptophan in the Liver: Interference with Decarboxylation of Other Aromatic Amino Acids." Acta Medica (Hradec Kralove, Czech Republic) 43, no. 1 (2000): 15–17. http://dx.doi.org/10.14712/18059694.2019.111.

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Decarboxylation of aromatic amino acid in mammalian tissues is catalyzed by aromatic amino acid decarboxylase (EC. 4.1.1.28, AAD). The enzyme differs in its affinity to individual aromatic amino acids, the best substrates being 3,4-dihydroxyphenylalanine (dopa) and 5-hydroxytryptophan. Surprisingly, AAD is abundant in the liver, where the substrates with rather low affinity to AAD as tryptophan, phenylalanine, and tyrosine are offered to decarboxylation. In the present paper, the possibility of interference of tryptophan with decarboxylation of phenylalanine, tyrosine as well as dopa in the li

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24

Pichler, Johann, Ana Torvisco, Patrick Bottke, Martin Wilkening, and Frank Uhlig. "Novel amino propyl substituted organo tin compounds." Canadian Journal of Chemistry 92, no. 6 (2014): 565–73. http://dx.doi.org/10.1139/cjc-2013-0504.

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In this work, a new synthetic pathway yielding unprotected amino propyl tin compounds is described. For this purpose, mono stannanes with different substitution patterns are used. In a first step, tin hydrides are deprotonated using lithium diisopropyl amide and mixed with an electrophile containing a protected amine in the ω-position. After deprotection via acidic hydrolysis, the desired amino propyl tin compounds are obtained in high yield and purity. The thermal reaction behavior of the amino propyl tin hydrohalide intermediates containing one aromatic residue at the central tin atom is als

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25

Yeom, Soo-Jin, Hye-Jung Kim, Jung-Kul Lee, Dong-Eun Kim, and Deok-Kun Oh. "An amino acid at position 142 in nitrilase from Rhodococcus rhodochrous ATCC 33278 determines the substrate specificity for aliphatic and aromatic nitriles." Biochemical Journal 415, no. 3 (2008): 401–7. http://dx.doi.org/10.1042/bj20080440.

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Nitrilase from Rhodococcus rhodochrous ATCC 33278 hydrolyses both aliphatic and aromatic nitriles. Replacing Tyr-142 in the wild-type enzyme with the aromatic amino acid phenylalanine did not alter specificity for either substrate. However, the mutants containing non-polar aliphatic amino acids (alanine, valine and leucine) at position 142 were specific only for aromatic substrates such as benzonitrile, m-tolunitrile and 2-cyanopyridine, and not for aliphatic substrates. These results suggest that the hydrolysis of substrates probably involves the conjugated π-electron system of the aromatic r

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26

Topolyan, A. P., M. A. Belyaeva, E. E. Bykov, et al. "Derivatization of Aminoglycoside Antibiotics with Tris(2,6-dimethoxyphenyl)carbenium Ion." Acta Naturae 8, no. 3 (2016): 128–35. http://dx.doi.org/10.32607/20758251-2016-8-3-128-135.

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Detection of aminoglycoside antibiotics by MS or HPLC is complicated, because a) carbohydrate molecules have low ionization ability in comparison with other organic molecules (particularly in MALDI-MS), and b) the lack of aromatics and/or amide bonds in the molecules makes common HPLC UV-detectors useless. Here, we report on the application of a previously developed method for amine derivatization with tris(2,6-dimethoxyphenyl)carbenium ion to selective modification of aminoglycoside antibiotics. Only amino groups bound to primary carbons get modified. The attached aromatic residue carries a p

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27

Du, Ranran, Dingtian Yang, Guangjia Jiang, Youren Song, and Xiaoqing Yin. "An Approach for In Situ Rapid Detection of Deep-Sea Aromatic Amino Acids Using Laser-Induced Fluorescence." Sensors 20, no. 5 (2020): 1330. http://dx.doi.org/10.3390/s20051330.

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Amino acids are the material basis of almost all life activities. An improved understanding of the source, state, and cycle of amino acids is essential for determining the energy flow and material circulation of marine ecosystems. In the present study, an in situ rapid detection method of ultraviolet (UV; 266 nm) laser-induced fluorescence (LIF) technology was used to detect three natural, aromatic amino acids in the seawater. The laser-induced fluorescence peaks of aromatic amino acids tryptophan, tyrosine, and phenylalanine were located at 350 nm, 300 nm, and 280 nm, respectively. High, line

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28

Wykes, L. J., J. D. House, R. O. Ball, and P. B. Pencharz. "Aromatic amino acid metabolism of neonatal piglets receiving TPN: effect of tyrosine precursors." American Journal of Physiology-Endocrinology and Metabolism 267, no. 5 (1994): E672—E679. http://dx.doi.org/10.1152/ajpendo.1994.267.5.e672.

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Low tyrosine solubility in total parenteral nutrition (TPN) solutions complicates meeting the aromatic amino acid needs of infants. This study compared the effectiveness of two tyrosine precursors to supply the aromatic amino acid needs of TPN-fed neonatal piglets with a control group in which total aromatic acid needs were met by the addition of phenylalanine (Phe). Eighteen 3-day-old male Yorkshire piglets (6/group) received TPN for 8 days by central line. The solution was supplemented with Phe or one of the following two tyrosine precursors: N-acetyltyrosine (N-AcTyr) or glycyltyrosine (Gly

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29

Noble, Jennifer Anna, Juan P. Aranguren-Abate, Claude Dedonder, Christophe Jouvet, and Gustavo A. Pino. "Photodetachment of deprotonated aromatic amino acids: stability of the dehydrogenated radical depends on the deprotonation site." Physical Chemistry Chemical Physics 21, no. 42 (2019): 23346–54. http://dx.doi.org/10.1039/c9cp04302k.

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When aromatic amino acids are deprotonated on the carbonyl, the radicals produced upon photodetachment dissociate without barrier, forming CO<sub>2</sub> and a radical amine. When the functional group on the chromophore is deprotonated, the radicals are stable.

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Johnston, A. D., E. Asmussen, and R. L. Bowen. "Substitutes for N-Phenylglycine in Adhesive Bonding to Dentin." Journal of Dental Research 68, no. 9 (1989): 1337–44. http://dx.doi.org/10.1177/00220345890680091001.

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Using bond strength measurements, we investigated a number of related compounds in order to elucidate the role of the surface-active ingredient, N-phenylglycine (NPG), in experimental two-step and three-step bonding protocols resulting in adhesive bonding to dentin. All active compounds identified for the two-step or the three-step protocol were N-aryl-α-amino acids, and the results delineate some of the key features of the NPG molecule for bonding. For the three-step protocol, there was a requirement for a secondary or tertiary aromatic amino group, a carboxylic acid group, and a single (seco

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31

Abramson, David H., Susan H. Senft, Camille A. Servodidio, Robert M. Ellsworth, and Paul H. Gamache. "Retinoblastoma Aqueous Humor: Aromatic Amino Acids." Ophthalmic Paediatrics and Genetics 14, no. 3 (1993): 127–30. http://dx.doi.org/10.3109/13816819309087628.

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32

Yue Wei-Wei, Wang Wei-Ning, Zhao Guo-Zhong, Zhang Cun-Lin, and Yan Hai-Tao. "THz spectrum of aromatic amino acid." Acta Physica Sinica 54, no. 7 (2005): 3094. http://dx.doi.org/10.7498/aps.54.3094.

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Pons, R., B. Ford, C. A. Chiriboga, et al. "Aromatic l-amino acid decarboxylase deficiency." Neurology 62, no. 7 (2004): 1058–65. http://dx.doi.org/10.1212/wnl.62.7.1058.

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Gao, S., D. H. Oh, J. R. Broadbent, M. E. Johnson, B. C. Weimer, and J. L. Steele. "Aromatic amino acid catabolism by lactococci." Le Lait 77, no. 3 (1997): 371–81. http://dx.doi.org/10.1051/lait:1997325.

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35

Ager, David J., and Indra Prakash. "Synthesis of Aromatic Amino Acid Amides." Synthetic Communications 26, no. 20 (1996): 3865–68. http://dx.doi.org/10.1080/00397919608003803.

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36

HAGGIN, JOSEPH. "Inorganic hosts bind aromatic amino acids." Chemical & Engineering News 73, no. 16 (1995): 28–29. http://dx.doi.org/10.1021/cen-v073n016.p028.

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37

Wang, Minmin, and Hiroshi A. Maeda. "Aromatic amino acid aminotransferases in plants." Phytochemistry Reviews 17, no. 1 (2017): 131–59. http://dx.doi.org/10.1007/s11101-017-9520-6.

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38

Fitzpatrick, Paul F. "Mechanism of Aromatic Amino Acid Hydroxylation†." Biochemistry 42, no. 48 (2003): 14083–91. http://dx.doi.org/10.1021/bi035656u.

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39

Nowicki, Cristina, and Juan J. Cazzulo. "Aromatic amino acid catabolism in trypanosomatids." Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology 151, no. 3 (2008): 381–90. http://dx.doi.org/10.1016/j.cbpa.2007.03.010.

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40

Patel, K. H., and A. G. Mehta. "Synthesis and Antifungal Activity of Azetidinone and Thiazolidinones Derivatives of 2-Amino-6-(2-naphthalenyl)thiazolo[3,2-d]thiadiazole." E-Journal of Chemistry 3, no. 4 (2006): 267–73. http://dx.doi.org/10.1155/2006/186294.

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2-Amino-6-(2-naphthalenyl)thiazolo[3,2-d]thiadiazole [1] was prepared by treatment of KCNS and Br2on 2-Amino-4-(2-naphthalenyl) thiazole. This amine on facile condensation with aromatic aldehydes afford Schiff Base/anils/azomethines(2a-h). These anils on cyclocondensation reaction with chloro acetyl chloride and thio glycolic acid (i.e. mercapto acetic acid) afford 2-azetidinones and 4-thiazolidinones respectively. The prepared compounds have been screened on some stains of fungai.

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Hosseini-Sarvari, Mona. "Synthesis of β-amino alcohols using MgO as a new catalyst under solvent-free conditions". Canadian Journal of Chemistry 86, № 1 (2008): 65–71. http://dx.doi.org/10.1139/v07-135.

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MgO catalyzed efficiently the ring opening of epoxides with a range of aromatic and aliphatic amines to produce β-substituted alcohols in high yields under solvent-free conditions. Exclusive trans stereoselectivity is observed for cyclic epoxide.Key words: MgO, β-amino alcohols, solvent-free, epoxide, amine.

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42

Joshi, Rekha R., Jay Z. Chandanshive та Pradip D. Lokhande. "Ammonium Chloride Promoted One-Pot, Three-Component Mannich Reaction: An Efficient Synthesis of β-Amino Ketones and β-Amino Esters". Asian Journal of Chemistry 34, № 12 (2022): 3353–60. http://dx.doi.org/10.14233/ajchem.2022.23978.

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Ammonium chloride was found to efficiently reagent for the one pot-three component Mannich reaction between aromatic aldehyde, ketone and amine in ethanol at room temperature to furnish β-amino ketones in good to excellent yields. The said protocol was further applied for the direct synthesis of β-amino esters, which are important precursors for the synthesis of β-amino acids. This protocol is potentially applicable for the development of a clean and environment-friendly strategy for the synthesis of β-amino ketones and found applications in the synthesis of potent biologically active molecule

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43

Qandalee, Mohammad, Masoud Mokhtary, Sakineh Asghari, and Mehrdad Mehrzadi. "Synthesis of Polyfunctionalized Amino Furans with Long Conjugated Aromatic Systems Using Nucleophilic Aromatic Isocyanide." E-Journal of Chemistry 9, no. 2 (2012): 791–95. http://dx.doi.org/10.1155/2012/931293.

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Rahman, Md Matiur, Md Kamal Hossain, Farid Ahmed, and Md Abul Hossain. "Adsorption of Aromatic Amino Acids on Gallium Nitride Nanotubes - A Computational ONIOM Investigation." Volume 5 - 2020, Issue 8 - August 5, no. 8 (2020): 194–99. http://dx.doi.org/10.38124/ijisrt20aug198.

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In this study, we have considered the interaction of aromatic amino acids (AAAs), i.e., Phenylalanine (Phen), Histidine (His), Tyrosine (Tyr), and Tryptophan (Trp), with different Gallium Nitride Nanotubes (GaNNTs). For optimization, we have used molecular mechanics (MM) method for GaNNTs and density functional theory (DFT) for aromatic amino acids respectively. We have investigated the interaction between AAAs and GaNNTs using ONIOM methods. We have found that aromatic amino acids are well encapsulated inside the wall of the GaNNTs. For different structures of GaNNTs chiral (10, 5), (12, 6) a

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Dixit, Shrajay. "Meta - Analysis of Self - Assembly of Aromatic Amino Acids: A Molecular Dynamics Study." International Journal of Science and Research (IJSR) 11, no. 9 (2022): 64–73. http://dx.doi.org/10.21275/sr22714120340.

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Brunke, Sascha, Katja Seider, Martin Ernst Richter, et al. "Histidine Degradation via an Aminotransferase Increases the Nutritional Flexibility of Candida glabrata." Eukaryotic Cell 13, no. 6 (2014): 758–65. http://dx.doi.org/10.1128/ec.00072-14.

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ABSTRACTThe ability to acquire nutrients during infections is an important attribute in microbial pathogenesis. Amino acids are a valuable source of nitrogen if they can be degraded by the infecting organism. In this work, we analyzed histidine utilization in the fungal pathogen of humansCandida glabrata. Hemiascomycete fungi, likeC. glabrataorSaccharomyces cerevisiae, possess no gene coding for a histidine ammonia-lyase, which catalyzes the first step of a major histidine degradation pathway in most other organisms. We show thatC. glabratainstead initializes histidine degradation via the arom

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Forlani, Giuseppe, Samuele Giberti, and Enrico Doria. "The Levels of DAHP Synthase, the First Enzyme of the Shikimate Pathway, Are Related to Free Aromatic Amino Acids and Glutamine Content in Nicotiana plumbaginifolia Cell Cultures." Plants 12, no. 13 (2023): 2524. http://dx.doi.org/10.3390/plants12132524.

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Aromatic amino acid homeostasis was investigated in cell suspension cultures of Nicotiana plumbaginifolia and was related to the activity of the first enzyme in aromatic biosynthesis, 3-deoxy-D-arabino-heptulosonate-7-phosphate (DAHP) synthase. An inverse relationship was found between the intracellular content of free phenylalanine, tyrosine and tryptophan and enzyme specific activity levels, suggesting the occurrence of end-product control mechanisms. Two DAHP synthase isogenes are present in wild tobacco that showed a different expression pattern during the culture growth cycle. Intracellul

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Chelli, Riccardo, Francesco Luigi Gervasio, Piero Procacci, and Vincenzo Schettino. "Stacking and T-shape Competition in Aromatic−Aromatic Amino Acid Interactions." Journal of the American Chemical Society 124, no. 21 (2002): 6133–43. http://dx.doi.org/10.1021/ja0121639.

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Samuels, Eric R., та Irina F. Sevrioukova. "Direct synthesis of α-thio aromatic acids from aromatic amino acids". Tetrahedron Letters 59, № 12 (2018): 1140–42. http://dx.doi.org/10.1016/j.tetlet.2018.02.030.

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Hashimoto, Makoto, and Yuta Murai. "Synthesis of Photoreactive Aromatic ^|^alpha;-Amino Acids and Effective Hydrogen-Deuterium Exchange for Aromatic ^|^alpha;-Amino Acids." Journal of Synthetic Organic Chemistry, Japan 72, no. 4 (2014): 360–69. http://dx.doi.org/10.5059/yukigoseikyokaishi.72.360.

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