1
|
Li G, He R, Liu Q, Wang Z, Liu Y, Wang Q. Formation of Amidinyl Radicals via Visible-Light-Promoted Reduction of N-Phenyl Amidoxime Esters and Application to the Synthesis of 2-Substituted Benzimidazoles. J Org Chem 2019; 84:8646-8660. [PMID: 31198038 DOI: 10.1021/acs.joc.9b01158] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
We have developed a new method for the synthesis of 2-substituted benzimidazoles via amidinyl radicals generated by visible-light-promoted reduction of N-phenyl amidoxime esters in the presence of an iridium photocatalyst. This is the first report of the use of N-phenyl amidoxime esters as amidinyl radical precursors, and the first use of substituted benzene rings as amidinyl radical acceptors. This method widens the application range of substrates and overcomes the shortcomings of the traditional methods for the synthesis of 2-substituted benzimidazoles, which requires harsh reaction conditions, involves difficult-to-prepare substituted o-phenylenediamine substrates, and produces acidic waste.
Collapse
Affiliation(s)
- Gang Li
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Nankai University , Tianjin 300071 , China
| | - Ru He
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Nankai University , Tianjin 300071 , China
| | - Qiang Liu
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Nankai University , Tianjin 300071 , China
| | - Ziwen Wang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, MOE Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, College of Chemistry , Tianjin Normal University , Tianjin 300387 , China
| | - Yuxiu Liu
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Nankai University , Tianjin 300071 , China
| | - Qingmin Wang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Nankai University , Tianjin 300071 , China
| |
Collapse
|
2
|
Shahini C, Achar G, Budagumpi S, Müller–Bunz H, Tacke M, Patil SA. Benzoxazole and dioxolane substituted benzimidazole–based N–heterocyclic carbene–silver(I) complexes: Synthesis, structural characterization and in vitro antimicrobial activity. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.04.039] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
|
3
|
Soares AMS, Hungerford G, Gonçalves MST, Costa SPG. Light triggering of 5-aminolevulinic acid from fused coumarin ester cages. NEW J CHEM 2017. [DOI: 10.1039/c6nj03787a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Light-triggered release of 5-aminolevulinic acid from various fused coumarin ester cages under UV/vis irradiation in MeOH/HEPES buffer (80 : 20).
Collapse
Affiliation(s)
- Ana M. S. Soares
- Centro de Química
- Universidade do Minho
- Campus de Gualtar
- 4710-057 Braga
- Portugal
| | | | | | - Susana P. G. Costa
- Centro de Química
- Universidade do Minho
- Campus de Gualtar
- 4710-057 Braga
- Portugal
| |
Collapse
|
4
|
Chen W, An W, Wang Y, Yu A. Mechanisms of Metal-Free Aerobic Oxidation To Prepare Benzoxazole Catalyzed by Cyanide: A Direct Cyclization or Stepwise Oxidative Dehydrogenation and Cyclization? J Org Chem 2016; 81:10857-10862. [DOI: 10.1021/acs.joc.6b01939] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Weiqiang Chen
- Institute
of Applied Chemistry and Engineering, College of Chemistry,
Tianjin Key laboratory of Biosensing and Molecular Recognition and ‡College of Life
Sciences, Nankai University, Tianjin 300071, China
| | - Weili An
- Institute
of Applied Chemistry and Engineering, College of Chemistry,
Tianjin Key laboratory of Biosensing and Molecular Recognition and ‡College of Life
Sciences, Nankai University, Tianjin 300071, China
| | - Yongjian Wang
- Institute
of Applied Chemistry and Engineering, College of Chemistry,
Tianjin Key laboratory of Biosensing and Molecular Recognition and ‡College of Life
Sciences, Nankai University, Tianjin 300071, China
| | - Ao Yu
- Institute
of Applied Chemistry and Engineering, College of Chemistry,
Tianjin Key laboratory of Biosensing and Molecular Recognition and ‡College of Life
Sciences, Nankai University, Tianjin 300071, China
| |
Collapse
|
5
|
Wilkins LC, Wieneke P, Newman PD, Kariuki BM, Rominger F, Hashmi ASK, Hansmann MM, Melen RL. Pathways to Functionalized Heterocycles: Propargyl Rearrangement using B(C6F5)3. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00753] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lewis C. Wilkins
- School
of Chemistry, Cardiff University, Main Building, Cardiff CF10 3AT, Cymru/Wales, U.K
| | - Philipp Wieneke
- Organisch-Chemisches
Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer
Feld 270, 69120 Heidelberg, Germany
| | - Paul D. Newman
- School
of Chemistry, Cardiff University, Main Building, Cardiff CF10 3AT, Cymru/Wales, U.K
| | - Benson M. Kariuki
- School
of Chemistry, Cardiff University, Main Building, Cardiff CF10 3AT, Cymru/Wales, U.K
| | - Frank Rominger
- Organisch-Chemisches
Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer
Feld 270, 69120 Heidelberg, Germany
| | - A. Stephen K. Hashmi
- Organisch-Chemisches
Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer
Feld 270, 69120 Heidelberg, Germany
- Chemistry
Department, King Abdulaziz University (KAU), Jeddah 21589, Saudi Arabia
| | - Max M. Hansmann
- Organisch-Chemisches
Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer
Feld 270, 69120 Heidelberg, Germany
| | - Rebecca L. Melen
- School
of Chemistry, Cardiff University, Main Building, Cardiff CF10 3AT, Cymru/Wales, U.K
| |
Collapse
|
6
|
In silico structure-based design and synthesis of novel anti-RSV compounds. Antiviral Res 2015; 122:46-50. [PMID: 26259810 DOI: 10.1016/j.antiviral.2015.08.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 08/04/2015] [Accepted: 08/06/2015] [Indexed: 12/20/2022]
Abstract
Respiratory syncytial virus (RSV) is the major cause for respiratory tract disease in infants and young children. Currently, no licensed vaccine or a selective antiviral drug against RSV infections are available. Here, we describe a structure-based drug design approach that led to the synthesis of a novel series of zinc-ejecting compounds active against RSV replication. 30 compounds, sharing a common dithiocarbamate moiety, were designed and prepared to target the zinc finger motif of the M2-1 protein. A library of ∼ 12,000 small fragments was docked to explore the area surrounding the zinc ion. Among these, seven ligands were selected and used for the preparation of the new derivatives. The results reported here may help the development of a lead compound for the treatment of RSV infections.
Collapse
|
7
|
Soares AMS, Hungerford G, Costa SPG, Gonçalves MST. Photoactivation of Butyric Acid from 6-Aminobenzocoumarin Cages. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500396] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
8
|
Fonseca ASC, Soares AMS, Gonçalves MST, Costa SPG. Photolabile protection for amino acids: studies on the release from novel benzoquinolone cages. Amino Acids 2015. [PMID: 26202592 DOI: 10.1007/s00726-015-2048-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The synthesis of a novel fused nitrogen heterocycle, benzoquinolone, for evaluation as a photocleavable protecting group is described for the first time by coupling to model amino acids (alanine, phenylalanine and glutamic acid). Conversion of the phenylalanine ester conjugate to the thionated derivative was accomplished by reaction with Lawesson's reagent. Photocleavage studies of the carbonyl and thiocarbonyl benzoquinolone conjugates in various solvents and at different wavelengths (300, 350 and 419 nm) showed that the most interesting result was obtained at 419 nm for the thioconjugate, revealing that the presence of the thiocarbonyl group clearly improved the photolysis rates, giving practicable irradiations times for the release of the amino acids (less than 1 min).
Collapse
Affiliation(s)
- Andrea S C Fonseca
- Centro de Química, Universidade do Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - Ana M S Soares
- Centro de Química, Universidade do Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - M Sameiro T Gonçalves
- Centro de Química, Universidade do Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - Susana P G Costa
- Centro de Química, Universidade do Minho, Campus de Gualtar, 4710-057, Braga, Portugal.
| |
Collapse
|
9
|
Piloto AM, Hungerford G, Sutter JU, Soares AM, Costa SP, Gonçalves MST. Photoactivable heterocyclic cages in a comparative release study of butyric acid as a model drug. J Photochem Photobiol A Chem 2015. [DOI: 10.1016/j.jphotochem.2014.10.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
10
|
Soares AMS, Hungerford G, Costa SPG, Gonçalves MST. Aminobenzocoumarinylmethyl esters as photoactive precursors for the release of butyric acid. NEW J CHEM 2015. [DOI: 10.1039/c5nj00699f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The photorelease of butyric acid from new aminobenzocoumarin ester cages under UV/visible irradiation.
Collapse
|
11
|
Corro M, Besora M, Maya C, Álvarez E, Urbano J, Fructos MR, Maseras F, Pérez PJ. Catalytic Copper-Mediated Ring Opening and Functionalization of Benzoxazoles. ACS Catal 2014. [DOI: 10.1021/cs5012519] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Macarena Corro
- Laboratorio
de Catálisis Homogénea, Unidad Asociada al CSIC, CIQSO-Centro
de Investigación en Química Sostenible and Departamento
de Química y Ciencia de los Materiales, Campus de El Carmen
s/n, Universidad de Huelva, Avenida de las Fuerzas Armadas, 21007 Huelva, Spain
| | - Maria Besora
- Institute of Chemical
Research of Catalonia (ICIQ), Avinguda
Paı̈sos Catalans, 16, 43007 Tarragona, Catalonia, Spain
| | - Celia Maya
- Departamento
de Química Inorgánica, Universidad de Sevilla, Aptdo 1203, 41071 Sevilla, Spain
| | - Eleuterio Álvarez
- Instituto de Investigaciones
Químicas, Centro de Investigaciones Isla de la Cartuja, Avda Américo Vespucio 49, 41092 Sevilla, Spain
| | - Juan Urbano
- Laboratorio
de Catálisis Homogénea, Unidad Asociada al CSIC, CIQSO-Centro
de Investigación en Química Sostenible and Departamento
de Química y Ciencia de los Materiales, Campus de El Carmen
s/n, Universidad de Huelva, Avenida de las Fuerzas Armadas, 21007 Huelva, Spain
| | - Manuel R. Fructos
- Laboratorio
de Catálisis Homogénea, Unidad Asociada al CSIC, CIQSO-Centro
de Investigación en Química Sostenible and Departamento
de Química y Ciencia de los Materiales, Campus de El Carmen
s/n, Universidad de Huelva, Avenida de las Fuerzas Armadas, 21007 Huelva, Spain
| | - Feliu Maseras
- Institute of Chemical
Research of Catalonia (ICIQ), Avinguda
Paı̈sos Catalans, 16, 43007 Tarragona, Catalonia, Spain
- Departament
de Química, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Pedro J. Pérez
- Laboratorio
de Catálisis Homogénea, Unidad Asociada al CSIC, CIQSO-Centro
de Investigación en Química Sostenible and Departamento
de Química y Ciencia de los Materiales, Campus de El Carmen
s/n, Universidad de Huelva, Avenida de las Fuerzas Armadas, 21007 Huelva, Spain
| |
Collapse
|
12
|
Naresh G, Kant R, Narender T. Molecular Iodine Promoted Divergent Synthesis of Benzimidazoles, Benzothiazoles, and 2-Benzyl-3-phenyl-3,4-dihydro-2H-benzo[e][1,2,4]thiadiazines. J Org Chem 2014; 79:3821-9. [DOI: 10.1021/jo5000797] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Gunaganti Naresh
- Medicinal
and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, India 226001
| | - Ruchir Kant
- Molecular
and Structural Biology Division, CSIR-Central Drug Research Institute, Lucknow, India 226001
| | - Tadigoppula Narender
- Medicinal
and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, India 226001
| |
Collapse
|
13
|
Piloto AM, Costa SP, Gonçalves MST. Wavelength-selective cleavage of o-nitrobenzyl and polyheteroaromatic benzyl protecting groups. Tetrahedron 2014. [DOI: 10.1016/j.tet.2013.11.100] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
14
|
Piloto AM, Hungerford G, Costa SPG, Gonçalves MST. Photoinduced Release of Neurotransmitter Amino Acids from Coumarin-Fused Julolidine Ester Cages. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300730] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
15
|
Cho YH, Lee CY, Cheon CH. Cyanide as a powerful catalyst for facile synthesis of benzofused heteroaromatic compounds via aerobic oxidation. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.05.138] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
16
|
Klán P, Šolomek T, Bochet CG, Blanc A, Givens R, Rubina M, Popik V, Kostikov A, Wirz J. Photoremovable protecting groups in chemistry and biology: reaction mechanisms and efficacy. Chem Rev 2013; 113:119-91. [PMID: 23256727 PMCID: PMC3557858 DOI: 10.1021/cr300177k] [Citation(s) in RCA: 1253] [Impact Index Per Article: 113.9] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2012] [Indexed: 02/06/2023]
Affiliation(s)
- Petr Klán
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic.
| | | | | | | | | | | | | | | | | |
Collapse
|
17
|
Piloto AM, Hungerford G, Costa SPG, Gonçalves MST. Acridinyl methyl esters as photoactive precursors in the release of neurotransmitteramino acids. Photochem Photobiol Sci 2013; 12:339-47. [DOI: 10.1039/c2pp25261a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
18
|
Fernandes MJG, Costa SPG, Gonçalves MST. Synthesis and light triggered release of catecholamines from pyrenylmethyl carbamate cages. NEW J CHEM 2013. [DOI: 10.1039/c3nj00247k] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
19
|
Shah SR, Navathe SS, Dikundwar AG, Guru Row TN, Vasella AT. Thermal Rearrangement of Azido Ketones into Oxazoles via Azirines: One-Pot, Metal-Free Heteroannulation to Functionalized 1,3-Oxazoles. European J Org Chem 2012. [DOI: 10.1002/ejoc.201201269] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
20
|
Fonseca AS, Soares AM, Gonçalves MST, Costa SP. Thionated coumarins and quinolones in the light triggered release of a model amino acid: synthesis and photolysis studies. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.07.021] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
21
|
Fonseca AS, Gonçalves MST, Costa SP. Phenacyl ester derivatives bearing heterocycles as models for photocleavable linkers: synthesis and photolysis studies. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.06.100] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
22
|
Bastug G, Eviolitte C, Markó IE. Functionalized Orthoesters as Powerful Building Blocks for the Efficient Preparation of Heteroaromatic Bicycles. Org Lett 2012; 14:3502-5. [DOI: 10.1021/ol301472a] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gulluzar Bastug
- Laboratory of Organic and Medicinal Chemistry, Université Catholique de Louvain, Bâtiment Lavoisier, Place Louis Pasteur 1 bte L4.01.02., B-1348 Louvain-la-Neuve, Belgium
| | - Christophe Eviolitte
- Laboratory of Organic and Medicinal Chemistry, Université Catholique de Louvain, Bâtiment Lavoisier, Place Louis Pasteur 1 bte L4.01.02., B-1348 Louvain-la-Neuve, Belgium
| | - István E. Markó
- Laboratory of Organic and Medicinal Chemistry, Université Catholique de Louvain, Bâtiment Lavoisier, Place Louis Pasteur 1 bte L4.01.02., B-1348 Louvain-la-Neuve, Belgium
| |
Collapse
|
23
|
Fonseca ASC, Gonçalves MST, Costa SPG. A photoactivable amino acid based on a novel functional coumarin-6-yl-alanine. Amino Acids 2012; 43:2329-38. [PMID: 22569958 DOI: 10.1007/s00726-012-1310-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2012] [Accepted: 04/20/2012] [Indexed: 11/29/2022]
Abstract
A novel fluorescent amino acid, L-4-chloromethylcoumarin-6-yl-alanine, was obtained from tyrosine by a Pechmann reaction. The assembly of the heterocyclic ring at the tyrosine side chain could be achieved before or after incorporation of tyrosine into a dipeptide, and amino acid and dipeptide ester conjugates were obtained by coupling to a model N-protected alanine. The behaviour of one of the fluorescent conjugates towards irradiation was studied in a photochemical reactor at different wavelengths (254, 300, 350 and 419 nm). The photoreaction course in methanol/HEPES buffer solution (80:20) was followed by HPLC/UV monitoring. It was found that the novel unnatural amino acid could act as a fluorescent label, due to its fluorescence properties, and, more importantly, as a photoactivable unit, due to the short irradiation times necessary to cleave the ester bond between the model amino acid and the coumarin-6-yl-alanine.
Collapse
Affiliation(s)
- Andrea S C Fonseca
- Centro de Química, Universidade do Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | | | | |
Collapse
|
24
|
Soares AMS, Piloto AM, Hungerford G, Costa SPG, Gonçalves MST. Photolytic Release of Butyric Acid from Oxygen- and Nitrogen-Based Heteroaromatic Cages. European J Org Chem 2011. [DOI: 10.1002/ejoc.201101392] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
25
|
Piloto AM, Soares AMS, Hungerford G, Costa SPG, Gonçalves MST. Long-Wavelength Photolysis of Amino Acid 6-(Methoxy-2-oxo-2H-naphtho[1,2-b]pyran-4-yl)methyl Esters. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100391] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
26
|
Photorelease of amino acids from novel thioxobenzo[f]benzopyran ester conjugates. Amino Acids 2011; 42:2275-82. [DOI: 10.1007/s00726-011-0969-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2011] [Accepted: 06/22/2011] [Indexed: 10/18/2022]
|
27
|
Fernandes MJG, Costa SP, Gonçalves MST. Phototriggering of neuroactive amino acids from 5,6-benzocoumarinyl conjugates. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.01.090] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|