1
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Hwang S, Choi M, Jeong M, Lee C. Synthesis of the C13-C27 Fragment of Madeirolide A Using Visible-Light-Promoted Radical Cyclization. Org Lett 2024; 26:1067-1072. [PMID: 38293710 DOI: 10.1021/acs.orglett.3c04305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
The convergent synthesis of a fully elaborated C13-C27 fragment of madeirolide A has been achieved. The key features of the synthesis include the stereocontrolled construction of both the THF and THP rings via visible-light-induced iridium-catalyzed radical cyclization and the late-stage union of the two oxacyclic subunits through nickel-catalyzed decarboxylative cross-coupling.
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Affiliation(s)
- Sunghyun Hwang
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Minchul Choi
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Myungeun Jeong
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Chulbom Lee
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
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2
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Hu Z, Lu W, Zheng Y, Liu J, Haick H, Bu L. Facile Graphene Oxide Modification Method via Hydroxyl-yne Click Reaction for Ultrasensitive and Ultrawide Monitoring Pressure Sensors. ACS APPLIED MATERIALS & INTERFACES 2024; 16:6198-6207. [PMID: 38276960 PMCID: PMC10859893 DOI: 10.1021/acsami.3c17172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 01/10/2024] [Accepted: 01/15/2024] [Indexed: 01/27/2024]
Abstract
Enhancing the durability and functionality of existing materials through sustainable pathways and appropriate structural design represents a time- and cost-effective strategy for the development of advanced wearable devices. Herein, a facile graphene oxide (GO) modification method via the hydroxyl-yne click reaction is present for the first time. By the click coupling between propiolate esters and hydroxyl groups on GO under mild conditions, various functional molecules are successfully grafted onto the GO. The modified GO is characterized by FTIR, XRD, TGA, XPS, and contact angle, proving significantly improved dispersibility in various solvents. Besides the high efficiency, high selectivity, and mild reaction conditions, this method is highly practical and accessible, avoiding the need for prefunctionalizations, metals, or toxic reagents. Subsequently, a rGO-PDMS sponge-based piezoresistive sensor developed by modified GO-P2 as the sensitive material exhibits impressive performance: high sensitivity (335 kPa-1, 0.8-150 kPa), wide linear range (>500 kPa), low detection limit (0.8 kPa), and long-lasting durability (>5000 cycles). Various practical applications have been demonstrated, including body joint movement recognition and real-time monitoring of subtle movements. These results prove the practicality of the methodology and make the rGO-PDMS sponge-based pressure sensor a real candidate for a wide array of wearable applications.
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Affiliation(s)
- Zhipeng Hu
- School
of Chemistry, Engineering Research Center of Energy Storage Materials
and Devices, Ministry of Education, Xi’an Key Laboratory of
Sustainable Energy Material Chemistry, Xi’an
Jiaotong University, Xi’an, Shaanxi 710049, P. R. China
- Department
of Chemical Engineering and Russell Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - Wanlong Lu
- School
of Chemistry, Engineering Research Center of Energy Storage Materials
and Devices, Ministry of Education, Xi’an Key Laboratory of
Sustainable Energy Material Chemistry, Xi’an
Jiaotong University, Xi’an, Shaanxi 710049, P. R. China
| | - Youbin Zheng
- Department
of Chemical Engineering and Russell Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, Haifa 3200003, Israel
- Department
of Electrical Engineering and Electronics, University of Liverpool, Liverpool L69 3GJ, U.K.
| | - Jiamei Liu
- Instrumental
Analysis Center, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, P. R. China
| | - Hossam Haick
- Department
of Chemical Engineering and Russell Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - Laju Bu
- School
of Chemistry, Engineering Research Center of Energy Storage Materials
and Devices, Ministry of Education, Xi’an Key Laboratory of
Sustainable Energy Material Chemistry, Xi’an
Jiaotong University, Xi’an, Shaanxi 710049, P. R. China
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3
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Santos T, Pérez-Pérez Y, Rivero DS, Diana-Rivero R, García-Tellado F, Tejedor D, Carrillo R. Dynamic Hydroxyl-Yne Reaction with Phenols. Org Lett 2022; 24:8401-8405. [PMID: 36350079 PMCID: PMC10443044 DOI: 10.1021/acs.orglett.2c03518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Indexed: 11/11/2022]
Abstract
Dynamic Covalent Chemistry (DCvC) has gained increasing importance in supramolecular chemistry and materials science. Herein we prove the dynamic nature of the exchange between phenols and vinyl ethers. Exchange is fast at room temperature and under mild conditions. The equilibrium constants and the electronic effect of the phenol substituents were calculated. This novel incorporation to the DCvC toolbox could be quite useful, and as a proof it was used for the synthesis of a responsive molecular cage.
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Affiliation(s)
- Tanausú Santos
- Instituto
Universitario de Bio-Orgánica Antonio González (IUBO),
Universidad de La Laguna, P.O. Box 456, 38206 La Laguna, Tenerife, Spain
| | - Yaiza Pérez-Pérez
- Instituto
de Productos Naturales y Agrobiología (IPNA-CSIC), Avda. Astrofísico Fco. Sánchez
3, 38206 La Laguna, Spain
| | - David S. Rivero
- Instituto
de Productos Naturales y Agrobiología (IPNA-CSIC), Avda. Astrofísico Fco. Sánchez
3, 38206 La Laguna, Spain
| | - Raquel Diana-Rivero
- Instituto
de Productos Naturales y Agrobiología (IPNA-CSIC), Avda. Astrofísico Fco. Sánchez
3, 38206 La Laguna, Spain
| | - Fernando García-Tellado
- Instituto
de Productos Naturales y Agrobiología (IPNA-CSIC), Avda. Astrofísico Fco. Sánchez
3, 38206 La Laguna, Spain
| | - David Tejedor
- Instituto
de Productos Naturales y Agrobiología (IPNA-CSIC), Avda. Astrofísico Fco. Sánchez
3, 38206 La Laguna, Spain
| | - Romen Carrillo
- Instituto
de Productos Naturales y Agrobiología (IPNA-CSIC), Avda. Astrofísico Fco. Sánchez
3, 38206 La Laguna, Spain
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4
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Quintana V, González‐Bakker A, Padrón JI, Martín VS, Padrón JM, Davyt D, Valdomir G. Synthesis of Oxazole–Tetrahydropyran Hybrids and Study on Their Antiproliferative Activity Against Human Tumour Cells. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Vanesa Quintana
- Departamento de Química Orgánica Facultad de Química UdelaR Av. General Flores 2124 11800 Montevideo Uruguay
| | - Aday González‐Bakker
- Instituto Universitario de Bio-Orgánica “Antonio González” (IUBO-AG) Universidad de La Laguna C/Astrofísico Francisco Sánchez 2 38206 La Laguna Spain
| | - Juan I. Padrón
- Instituto Universitario de Bio-Orgánica “Antonio González” (IUBO-AG) Universidad de La Laguna C/Astrofísico Francisco Sánchez 2 38206 La Laguna Spain
- Instituto de Productos Naturales y Agrobiología CSIC (IPNA-CSIC) C/Astrofísico Francisco Sánchez 3 38206 La Laguna Spain
| | - Víctor S. Martín
- Instituto Universitario de Bio-Orgánica “Antonio González” (IUBO-AG) Universidad de La Laguna C/Astrofísico Francisco Sánchez 2 38206 La Laguna Spain
| | - José M. Padrón
- Instituto Universitario de Bio-Orgánica “Antonio González” (IUBO-AG) Universidad de La Laguna C/Astrofísico Francisco Sánchez 2 38206 La Laguna Spain
| | - Danilo Davyt
- Departamento de Química Orgánica Facultad de Química UdelaR Av. General Flores 2124 11800 Montevideo Uruguay
| | - Guillermo Valdomir
- Departamento de Química Orgánica Facultad de Química UdelaR Av. General Flores 2124 11800 Montevideo Uruguay
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5
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Delgado-Hernández S, García-Tellado F, Tejedor D. Cyanovinylation of Aldehydes: Organocatalytic Multicomponent Synthesis of Conjugated Cyanomethyl Vinyl Ethers. Molecules 2021; 26:molecules26144120. [PMID: 34299395 PMCID: PMC8304223 DOI: 10.3390/molecules26144120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 06/30/2021] [Accepted: 07/02/2021] [Indexed: 11/16/2022] Open
Abstract
A novel organocatalytic multicomponent cyanovinylation of aldehydes was designed for the synthesis of conjugated cyanomethyl vinyl ethers. The reaction was implemented for the synthesis of a 3-substituted 3-(cyanomethoxy)acrylates, using aldehydes as substrates, acetone cyanohydrin as the cyanide anion source, and methyl propiolate as the source of the vinyl component. The multicomponent reaction is catalyzed by N-methyl morpholine (2.5 mol%) to deliver the 3-(cyanomethoxy)acrylates in excellent yields and with preponderance of the E-isomer. The multicomponent reaction manifold is highly tolerant to the structure and composition of the aldehyde (aliphatic, aromatic, heteroaromatics), and it is instrumentally simple (one batch, open atmospheres), economic (2.5 mol% catalyst, stoichiometric reagents), environmentally friendly (no toxic waste), and sustainable (easy scalability).
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Affiliation(s)
- Samuel Delgado-Hernández
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, Astrofísico Francisco Sánchez 3, 38206 La Laguna, Spain;
- Doctoral and Postgraduate School, Universidad de La Laguna, Apartado Postal 456, 38200 La Laguna, Spain
| | - Fernando García-Tellado
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, Astrofísico Francisco Sánchez 3, 38206 La Laguna, Spain;
- Correspondence: (F.G.-T.); (D.T.)
| | - David Tejedor
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, Astrofísico Francisco Sánchez 3, 38206 La Laguna, Spain;
- Correspondence: (F.G.-T.); (D.T.)
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6
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Worch JC, Stubbs CJ, Price MJ, Dove AP. Click Nucleophilic Conjugate Additions to Activated Alkynes: Exploring Thiol-yne, Amino-yne, and Hydroxyl-yne Reactions from (Bio)Organic to Polymer Chemistry. Chem Rev 2021; 121:6744-6776. [PMID: 33764739 PMCID: PMC8227514 DOI: 10.1021/acs.chemrev.0c01076] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Indexed: 12/22/2022]
Abstract
The 1,4-conjugate addition reaction between activated alkynes or acetylenic Michael acceptors and nucleophiles (i.e., the nucleophilic Michael reaction) is a historically useful organic transformation. Despite its general utility, the efficiency and outcomes can vary widely and are often closely dependent upon specific reaction conditions. Nevertheless, with improvements in reaction design, including catalyst development and an expansion of the substrate scope to feature more electrophilic alkynes, many examples now present with features that are congruent with Click chemistry. Although several nucleophilic species can participate in these conjugate additions, ubiquitous nucleophiles such as thiols, amines, and alcohols are commonly employed and, consequently, among the most well developed. For many years, these conjugate additions were largely relegated to organic chemistry, but in the last few decades their use has expanded into other spheres such as bioorganic chemistry and polymer chemistry. Within these fields, they have been particularly useful for bioconjugation reactions and step-growth polymerizations, respectively, due to their excellent efficiency, orthogonality, and ambient reactivity. The reaction is expected to feature in increasingly divergent application settings as it continues to emerge as a Click reaction.
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Affiliation(s)
- Joshua C. Worch
- School
of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K.
| | - Connor J. Stubbs
- School
of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K.
| | - Matthew J. Price
- School
of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K.
| | - Andrew P. Dove
- School
of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K.
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7
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Diana-Rivero R, Halsvik B, García Tellado F, Tejedor D. Short and Modular Synthesis of Substituted 2-Aminopyrroles. Org Lett 2021; 23:4078-4082. [PMID: 33929868 PMCID: PMC8483442 DOI: 10.1021/acs.orglett.1c01345] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We herein describe a simple and metal-free domino methodology to synthesize 2-aminopyrroles from alkynyl vinyl hydrazides. The domino reaction involves a novel propargylic 3,4-diaza-Cope rearrangement and a tandem isomerization/5-exo-dig N-cyclization reaction. By using this approach, a number of 2-aminopyrroles with diverse substituents have been prepared.
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Affiliation(s)
- Raquel Diana-Rivero
- Instituto de Productos Naturales y Agrobiología, CSIC, Astrofísico Francisco Sánchez 3, 38206 La Laguna, Tenerife, Spain.,Doctoral and Postgraduate School, Universidad de La Laguna, Santa Cruz de Tenerife, Spain
| | - Beate Halsvik
- Department of Chemistry, University of Bergen, Allégaten 41, NO-5007 Bergen, Norway
| | - Fernando García Tellado
- Instituto de Productos Naturales y Agrobiología, CSIC, Astrofísico Francisco Sánchez 3, 38206 La Laguna, Tenerife, Spain
| | - David Tejedor
- Instituto de Productos Naturales y Agrobiología, CSIC, Astrofísico Francisco Sánchez 3, 38206 La Laguna, Tenerife, Spain
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8
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Chen VY, Kwon O. Unified Approach to Furan Natural Products via Phosphine-Palladium Catalysis. Angew Chem Int Ed Engl 2021; 60:8874-8881. [PMID: 33533120 PMCID: PMC8016739 DOI: 10.1002/anie.202015232] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 01/12/2021] [Indexed: 01/14/2023]
Abstract
Polyalkyl furans are widespread in nature, often performing important biological roles. Despite a plethora of methods for the synthesis of tetrasubstituted furans, the construction of tetraalkyl furans remains non-trivial. The prevalence of alkyl groups in bioactive furan natural products, combined with the desirable bioactivities of tetraalkyl furans, calls for a general synthetic protocol for polyalkyl furans. This paper describes a Michael-Heck approach, using sequential phosphine-palladium catalysis, for the preparation of various polyalkyl furans from readily available precursors. The versatility of this method is illustrated by the total syntheses of nine distinct polyalkylated furan natural products belonging to different classes, namely the furanoterpenes rosefuran, sesquirosefuran, and mikanifuran; the marine natural products plakorsins A, B, and D and plakorsin D methyl ester; and the furan fatty acids 3D5 and hydromumiamicin.
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Affiliation(s)
- Violet Yijang Chen
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095-1659 (USA)
| | - Ohyun Kwon
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095-1659 (USA)
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9
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Chen VY, Kwon O. Unified Approach to Furan Natural Products via Phosphine‐Palladium Catalysis. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202015232] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Violet Yijang Chen
- Department of Chemistry and Biochemistry University of California, Los Angeles Los Angeles CA 90095-1659 USA
| | - Ohyun Kwon
- Department of Chemistry and Biochemistry University of California, Los Angeles Los Angeles CA 90095-1659 USA
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10
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Tejedor D, Diana-Rivero R, García-Tellado F. A General and Scalable Synthesis of Polysubstituted Indoles. Molecules 2020; 25:E5595. [PMID: 33260745 PMCID: PMC7730962 DOI: 10.3390/molecules25235595] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 11/26/2020] [Accepted: 11/26/2020] [Indexed: 11/30/2022] Open
Abstract
A consecutive 2-step synthesis of N-unprotected polysubstituted indoles bearing an electron-withdrawing group at the C-3 position from readily available nitroarenes is reported. The protocol is based on the [3,3]-sigmatropic rearrangement of N-oxyenamines generated by the DABCO-catalyzed reaction of N-arylhydroxylamines and conjugated terminal alkynes, and delivers indoles endowed with a wide array of substitution patterns and topologies.
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Affiliation(s)
- David Tejedor
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, Astrofísico Francisco Sánchez 3, 38206 La Laguna, Spain;
| | - Raquel Diana-Rivero
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, Astrofísico Francisco Sánchez 3, 38206 La Laguna, Spain;
- Doctoral and Postgraduate School, Universidad de La Laguna, Apartado Postal 456, 38200 La Laguna, Spain
| | - Fernando García-Tellado
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, Astrofísico Francisco Sánchez 3, 38206 La Laguna, Spain;
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11
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The versatility of DABCO: synthetic applications of its basic, nucleophilic, and catalytic properties Part 2*. Catalysis of Michael and Biginelli reactions and nucleophilic addition at C=X and C≡X bonds. Chem Heterocycl Compd (N Y) 2020. [DOI: 10.1007/s10593-020-02637-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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12
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Si H, Wang K, Song B, Qin A, Tang BZ. Organobase-catalysed hydroxyl–yne click polymerization. Polym Chem 2020. [DOI: 10.1039/d0py00095g] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient organobase (DABCO)-catalysed hydroxyl–yne click polymerization is successfully developed under mild conditions.
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Affiliation(s)
- Han Si
- State Key Laboratory of Luminescent Materials and Devices
- Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates
- Center for Aggregation-Induced Emission
- South China University of Technology
- Guangzhou 510640
| | - Kaojin Wang
- State Key Laboratory of Luminescent Materials and Devices
- Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates
- Center for Aggregation-Induced Emission
- South China University of Technology
- Guangzhou 510640
| | - Bo Song
- State Key Laboratory of Luminescent Materials and Devices
- Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates
- Center for Aggregation-Induced Emission
- South China University of Technology
- Guangzhou 510640
| | - Anjun Qin
- State Key Laboratory of Luminescent Materials and Devices
- Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates
- Center for Aggregation-Induced Emission
- South China University of Technology
- Guangzhou 510640
| | - Ben Zhong Tang
- State Key Laboratory of Luminescent Materials and Devices
- Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates
- Center for Aggregation-Induced Emission
- South China University of Technology
- Guangzhou 510640
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13
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Tejedor D, Delgado-Hernández S, Santamaría-Peláez B, García-Tellado F. Short and modular synthesis of tetraarylsalicylaldehydes. Chem Commun (Camb) 2020; 56:4019-4022. [DOI: 10.1039/d0cc00738b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Each one of the 15 possible different substitution geometries of tetraarylated salicylaldehyde molecules is accessible through a 5-step modular strategy.
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Affiliation(s)
- David Tejedor
- Instituto de Productos Naturales y Agrobiología
- CSIC
- 38206 La Laguna
- Spain
| | - Samuel Delgado-Hernández
- Instituto de Productos Naturales y Agrobiología
- CSIC
- 38206 La Laguna
- Spain
- Doctoral and Postgraduate School
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14
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Tejedor D, Delgado-Hernández S, Diana-Rivero R, Díaz-Díaz A, García-Tellado F. A Domino Strategy for the Synthesis of 2H
-Pyrans from Propargyl Vinyl Ethers. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801847] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- David Tejedor
- Instituto de Productos Naturales y Agrobiología; Consejo Superior de Investigaciones Científicas, Astrofísico Francisco Sánchez 3, 38206 La Laguna, Tenerife; Spain
| | - Samuel Delgado-Hernández
- Instituto de Productos Naturales y Agrobiología; Consejo Superior de Investigaciones Científicas, Astrofísico Francisco Sánchez 3, 38206 La Laguna, Tenerife; Spain
- Doctoral and Postgraduate School; Universidad de La Laguna; Spain
| | - Raquel Diana-Rivero
- Instituto de Productos Naturales y Agrobiología; Consejo Superior de Investigaciones Científicas, Astrofísico Francisco Sánchez 3, 38206 La Laguna, Tenerife; Spain
- Doctoral and Postgraduate School; Universidad de La Laguna; Spain
| | - Abián Díaz-Díaz
- Instituto de Productos Naturales y Agrobiología; Consejo Superior de Investigaciones Científicas, Astrofísico Francisco Sánchez 3, 38206 La Laguna, Tenerife; Spain
- Doctoral and Postgraduate School; Universidad de La Laguna; Spain
| | - Fernando García-Tellado
- Instituto de Productos Naturales y Agrobiología; Consejo Superior de Investigaciones Científicas, Astrofísico Francisco Sánchez 3, 38206 La Laguna, Tenerife; Spain
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15
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Martín-Rodríguez AJ, Álvarez-Méndez SJ, Overå C, Baruah K, Lourenço TM, Norouzitallab P, Bossier P, Martín VS, Fernández JJ. The 9 H-Fluoren Vinyl Ether Derivative SAM461 Inhibits Bacterial Luciferase Activity and Protects Artemia franciscana From Luminescent Vibriosis. Front Cell Infect Microbiol 2018; 8:368. [PMID: 30467537 PMCID: PMC6236115 DOI: 10.3389/fcimb.2018.00368] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 10/03/2018] [Indexed: 11/13/2022] Open
Abstract
Vibrio campbellii is a major pathogen in aquaculture. It is a causative agent of the so-called “luminescent vibriosis,” a life-threatening condition caused by bioluminescent Vibrio spp. that often involves mass mortality of farmed shrimps. The emergence of multidrug resistant Vibrio strains raises a concern and poses a challenge for the treatment of this infection in the coming years. Inhibition of bacterial cell-to-cell communication or quorum sensing (QS) has been proposed as an alternative to antibiotic therapies. Aiming to identify novel QS disruptors, the 9H-fluroen-9yl vinyl ether derivative SAM461 was found to thwart V. campbellii bioluminescence, a QS-regulated phenotype. Phenotypic and gene expression analyses revealed, however, that the mode of action of SAM461 was unrelated to QS inhibition. Further evaluation with purified Vibrio fischeri and NanoLuc luciferases revealed enzymatic inhibition at micromolar concentrations. In silico analysis by molecular docking suggested binding of SAM461 in the active site cavities of both luciferase enzymes. Subsequent in vivo testing of SAM461 with gnotobiotic Artemia franciscana nauplii demonstrated naupliar protection against V. campbellii infection at low micromolar concentrations. Taken together, these findings suggest that suppression of luciferase activity could constitute a novel paradigm in the development of alternative anti-infective chemotherapies against luminescent vibriosis, and pave the ground for the chemical synthesis and biological characterization of derivatives with promising antimicrobial prospects.
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Affiliation(s)
- Alberto J Martín-Rodríguez
- Instituto Universitario de Bio-Orgánica "Antonio González", Centro de Investigaciones Biomédicas de Canarias, Universidad de La Laguna, Tenerife, Spain.,Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Sergio J Álvarez-Méndez
- Instituto Universitario de Bio-Orgánica "Antonio González", Centro de Investigaciones Biomédicas de Canarias, Universidad de La Laguna, Tenerife, Spain
| | - Caroline Overå
- Institute of Biophysics and Biophysical Chemistry, University of Regensburg, Regensburg, Germany
| | - Kartik Baruah
- Laboratory of Aquaculture & Artemia Reference Center, Department of Animal Sciences and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium.,Department of Animal Nutrition and Management, Faculty of Veterinary Medicine and Animal Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Tânia Margarida Lourenço
- Laboratory of Aquaculture & Artemia Reference Center, Department of Animal Sciences and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Parisa Norouzitallab
- Laboratory of Aquaculture & Artemia Reference Center, Department of Animal Sciences and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium.,Laboratory of Immunology and Animal Biotechnology, Department of Animal Sciences and Aquatic Ecology, Ghent University, Ghent, Belgium
| | - Peter Bossier
- Laboratory of Aquaculture & Artemia Reference Center, Department of Animal Sciences and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Víctor S Martín
- Instituto Universitario de Bio-Orgánica "Antonio González", Centro de Investigaciones Biomédicas de Canarias, Universidad de La Laguna, Tenerife, Spain
| | - José J Fernández
- Instituto Universitario de Bio-Orgánica "Antonio González", Centro de Investigaciones Biomédicas de Canarias, Universidad de La Laguna, Tenerife, Spain
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16
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Valdomir G, Fernández MDLÁ, Lagunes I, Padrón JI, Martín VS, Padrón JM, Davyt D. Oxa/thiazole-tetrahydropyran triazole-linked hybrids with selective antiproliferative activity against human tumour cells. NEW J CHEM 2018. [DOI: 10.1039/c8nj02388c] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Inspired by marine bioactive compounds, the principle of molecular hybridization was applied combining diverse heterocyclic systems by a triazole ring, to produce new and more active compounds.
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Affiliation(s)
- Guillermo Valdomir
- Departamento de Química Orgánica
- Facultad de Química
- UdelaR
- 11800 Montevideo
- Uruguay
| | | | - Irene Lagunes
- Instituto Universitario de Bio-Orgánica “Antonio González” (IUBO-AG)
- Centro de Investigaciones Biomédicas de Canarias (CIBICAN)
- Universidad de La Laguna
- 38206 La Laguna
- Spain
| | - Juan I. Padrón
- Instituto Universitario de Bio-Orgánica “Antonio González” (IUBO-AG)
- Centro de Investigaciones Biomédicas de Canarias (CIBICAN)
- Universidad de La Laguna
- 38206 La Laguna
- Spain
| | - Víctor S. Martín
- Instituto Universitario de Bio-Orgánica “Antonio González” (IUBO-AG)
- Centro de Investigaciones Biomédicas de Canarias (CIBICAN)
- Universidad de La Laguna
- 38206 La Laguna
- Spain
| | - José M. Padrón
- Instituto Universitario de Bio-Orgánica “Antonio González” (IUBO-AG)
- Centro de Investigaciones Biomédicas de Canarias (CIBICAN)
- Universidad de La Laguna
- 38206 La Laguna
- Spain
| | - Danilo Davyt
- Departamento de Química Orgánica
- Facultad de Química
- UdelaR
- 11800 Montevideo
- Uruguay
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17
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Shi Y, Bai T, Bai W, Wang Z, Chen M, Yao B, Sun JZ, Qin A, Ling J, Tang BZ. Phenol-yne Click Polymerization: An Efficient Technique to Facilely Access Regio- and Stereoregular Poly(vinylene ether ketone)s. Chemistry 2017; 23:10725-10731. [DOI: 10.1002/chem.201702966] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Indexed: 12/17/2022]
Affiliation(s)
- Yang Shi
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 P.R. China
| | - Tianwen Bai
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 P.R. China
| | - Wei Bai
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 P.R. China
| | - Zhe Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 P.R. China
| | - Ming Chen
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 P.R. China
| | - Bicheng Yao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 P.R. China
| | - Jing Zhi Sun
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 P.R. China
| | - Anjun Qin
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 P.R. China
- Guangdong Innovative Research Team; State Key Laboratory of Luminescent Materials and Devices; South China University of Technology; Guangzhou 510640 P.R. China
| | - Jun Ling
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 P.R. China
| | - Ben Zhong Tang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 P.R. China
- Guangdong Innovative Research Team; State Key Laboratory of Luminescent Materials and Devices; South China University of Technology; Guangzhou 510640 P.R. China
- Department of Chemistry; Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction; The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon; Hong Kong P.R. China
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18
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Tejedor D, Delgado-Hernández S, Peyrac J, González-Platas J, García-Tellado F. Integrative Pericyclic Cascade: An Atom Economic, Multi C−C Bond-Forming Strategy for the Construction of Molecular Complexity. Chemistry 2017. [DOI: 10.1002/chem.201702667] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- David Tejedor
- Instituto de Productos Naturales y Agrobiología; Consejo Superior de Investigaciones Científicas; Astrofísico Francisco Sánchez 3 38206 La Laguna Tenerife Spain
| | - Samuel Delgado-Hernández
- Instituto de Productos Naturales y Agrobiología; Consejo Superior de Investigaciones Científicas; Astrofísico Francisco Sánchez 3 38206 La Laguna Tenerife Spain
| | - Jesús Peyrac
- Instituto de Productos Naturales y Agrobiología; Consejo Superior de Investigaciones Científicas; Astrofísico Francisco Sánchez 3 38206 La Laguna Tenerife Spain
| | - Javier González-Platas
- Servicio de Difracción de Rayos X, Departamento de Física; Universidad de La Laguna; Astrofísico Francisco Sánchez 2 38204 La Laguna Tenerife Spain
| | - Fernando García-Tellado
- Instituto de Productos Naturales y Agrobiología; Consejo Superior de Investigaciones Científicas; Astrofísico Francisco Sánchez 3 38206 La Laguna Tenerife Spain
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19
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Tejedor D, Delgado-Hernández S, Carballo RM, Dapueto R, Mena-Rejón GJ, García-Tellado F. Diversifying Complexity by Domino Benzannulation of Polycyclic Natural Products. J Org Chem 2017; 82:5328-5336. [PMID: 28467064 DOI: 10.1021/acs.joc.7b00654] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Herein we describe a salicylaldehyde-annulation reaction as a plug and play toolkit to diversify the complexity of naturally occurring ketones. The protocol entails the transformation of the polycyclic natural ketone into its propargyl vinyl ether derivative (two synthetic steps) and its microwave-assisted imidazole-catalyzed domino rearrangement to generate the salicylaldehyde ring. This annexed unit allows further synthetic transformations: e.g., the installation of a pharmacophore module to generate natural product-pharmacophore hybrids endowed with unknown biological (pharmaceutical) annotations.
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Affiliation(s)
- David Tejedor
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas , Avda. Astrofísico Francisco Sánchez 3, 38 206 La Laguna, Tenerife, Islas Canarias, Spain
| | - Samuel Delgado-Hernández
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas , Avda. Astrofísico Francisco Sánchez 3, 38 206 La Laguna, Tenerife, Islas Canarias, Spain
| | - Rubén M Carballo
- Laboratorio de Química Farmacéutica, Facultad de Química, Universidad Autónoma de Yucatán , C. 43 No. 613 x C. 90 Col. Inalámbrica, C.P. 97069, Mérida, Yucatán, México
| | - Rosina Dapueto
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas , Avda. Astrofísico Francisco Sánchez 3, 38 206 La Laguna, Tenerife, Islas Canarias, Spain
| | - Gonzalo J Mena-Rejón
- Laboratorio de Química Farmacéutica, Facultad de Química, Universidad Autónoma de Yucatán , C. 43 No. 613 x C. 90 Col. Inalámbrica, C.P. 97069, Mérida, Yucatán, México
| | - Fernando García-Tellado
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas , Avda. Astrofísico Francisco Sánchez 3, 38 206 La Laguna, Tenerife, Islas Canarias, Spain
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20
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Simón L, Paton RS. Phosphazene Catalyzed Addition to Electron-Deficient Alkynes: The Importance of Nonlinear Allenyl Intermediates upon Stereoselectivity. J Org Chem 2017; 82:3855-3863. [DOI: 10.1021/acs.joc.7b00540] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Luis Simón
- Facultad de Ciencias
Químicas, Universidad de Salamanca, Plaza de los Caídos 1-5, Salamanca E37004, Spain
| | - Robert S. Paton
- Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
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21
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Álvarez-Calero JM, Jorge ZD, Massanet GM. TiCl4/Et3N-Mediated Condensation of Acetate and Formate Esters: Direct Access to β-Alkoxy- and β-Aryloxyacrylates. Org Lett 2016; 18:6344-6347. [DOI: 10.1021/acs.orglett.6b03233] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- José María Álvarez-Calero
- Departamento de Química
Orgánica, Facultad de Ciencias, Universidad de Cádiz, Puerto Real, 11510 Cádiz, Spain
| | - Zacarías D. Jorge
- Departamento de Química
Orgánica, Facultad de Ciencias, Universidad de Cádiz, Puerto Real, 11510 Cádiz, Spain
| | - Guillermo M. Massanet
- Departamento de Química
Orgánica, Facultad de Ciencias, Universidad de Cádiz, Puerto Real, 11510 Cádiz, Spain
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22
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Tejedor D, Delgado-Hernández S, Ingold M, García-Tellado F. Synthesis of α-Quaternized 2,4-Cyclohexadienones from Propargyl Vinyl Ethers. J Org Chem 2016; 81:10099-10105. [PMID: 27709940 DOI: 10.1021/acs.joc.6b02137] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A microwave-assisted and base-catalyzed domino manifold to construct 2,4-cyclohexadienone derivatives has been implemented. The domino manifold uses easily accessible tertiary propargyl vinyl ethers bearing a methine group at the homopropargylic position and imidazole as the catalyst to deliver 2,4-cyclohexadienones featuring a key formyl group and a quaternized carbon atom in good yields.
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Affiliation(s)
- David Tejedor
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, Avda. Astrofísico Francisco Sánchez 3, 38 206 La Laguna, Tenerife, Islas Canarias, Spain
| | - Samuel Delgado-Hernández
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, Avda. Astrofísico Francisco Sánchez 3, 38 206 La Laguna, Tenerife, Islas Canarias, Spain
| | - Mariana Ingold
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, Avda. Astrofísico Francisco Sánchez 3, 38 206 La Laguna, Tenerife, Islas Canarias, Spain
| | - Fernando García-Tellado
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, Avda. Astrofísico Francisco Sánchez 3, 38 206 La Laguna, Tenerife, Islas Canarias, Spain
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23
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Tejedor D, Prieto-Ramírez MC, Ingold M, Chicón M, García-Tellado F. Synthesis of Polysubstituted Benzoic Esters from 1,2-Dihydropyridines and Its Application to the Synthesis of Fluorenones. Org Lett 2016; 18:2770-3. [DOI: 10.1021/acs.orglett.6b01260] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- David Tejedor
- Departamento de Química
Biológica y Biotecnología, Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, Avenida Astrofísico Francisco Sánchez
3, 38206 La Laguna, Tenerife, Spain
| | - Mary Cruz Prieto-Ramírez
- Departamento de Química
Biológica y Biotecnología, Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, Avenida Astrofísico Francisco Sánchez
3, 38206 La Laguna, Tenerife, Spain
| | - Mariana Ingold
- Departamento de Química
Biológica y Biotecnología, Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, Avenida Astrofísico Francisco Sánchez
3, 38206 La Laguna, Tenerife, Spain
| | - Margot Chicón
- Departamento de Química
Biológica y Biotecnología, Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, Avenida Astrofísico Francisco Sánchez
3, 38206 La Laguna, Tenerife, Spain
| | - Fernando García-Tellado
- Departamento de Química
Biológica y Biotecnología, Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, Avenida Astrofísico Francisco Sánchez
3, 38206 La Laguna, Tenerife, Spain
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24
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Tejedor D, López-Tosco S, Méndez-Abt G, Cotos L, García-Tellado F. Propargyl Vinyl Ethers and Tertiary Skipped Diynes: Two Pluripotent Molecular Platforms for Diversity-Oriented Synthesis. Acc Chem Res 2016; 49:703-13. [PMID: 27050293 DOI: 10.1021/acs.accounts.5b00545] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
During the last years, we have been involved in the development of a diversity-oriented synthetic strategy aimed at transforming simple, linear, and densely functionalized molecular platforms into collections of topologically diverse scaffolds incorporating biologically relevant structural motifs such as N- and O- heterocycles, multifunctionalized aromatic rings, fused macrocycles, etc. The strategy merges the concepts of pluripotency (the property of an array of chemical functionalities to express different chemical outcomes under different chemical environments) and domino chemistry (chemistry based on processes involving two or more bond-forming transformations that take place while the initial reaction conditions are maintained, with the subsequent reaction resulting as a consequence of the functionality installed in the previous one) to transform common multifunctional substrates into complex and diverse molecular frameworks. This design concept constitutes the ethos of the so-called branching cascade strategy, a branch of diversity-oriented synthesis focused on scaffold diversity generation. Two pluripotent molecular platforms have been extensively studied under this merging (branching) paradigm: C4-O-C3 propargyl vinyl ethers (PVEs) and C7 tertiary skipped diynes (TSDs). These are conveniently constructed from simple and commercially available raw materials (alkyl propiolates, ketones, aldehydes, acid chlorides) through multicomponent manifolds (ABB' three-component reaction for PVEs; A2BB' four-component reaction for TSDs) or a simple two-step procedure (for PVEs). Their modular origin facilitates their structural/functional diversification without increasing the number of synthetic steps for their assembly. These two pluripotent molecular platforms accommodate a well-defined and dense array of through-bond/through-space interrelated functionalities on their structures, which defines their primary reactivity principles and establishes the reactivity profile. The PVEs are defined by the presence of an alkyne (alkynoate) function and a conjugated enol moiety and their mutual through-bond/through-space connectivity. This functional array accommodates a number of domino reactions launched either by a Michael addition on the alkynoate moiety (conjugated alkynes) or by a [3,3]-propargyl Claisen rearrangement (conjugated and nonconjugated alkynes). The reactivity profile of the TSDs is defined by the two connected alkynoate moieties (Michael addition) and the bispropargylic ester group ([3,3]-sigmatropic rearrangement). Using these first reactivity principles, each platform selectively delivers one unique and different skeleton (topology) from each domino transformation. Thus, through the use of 11 instrumentally simple and scalable domino reactions, we have transformed these two linear (rod-symmetric) pluripotent molecular platforms into 16 different scaffolds incorporating important structural motifs and multifunctional decorative patterns. The generated scaffolds entail carbocycles, heterocycles, aromatics, β,γ-unsaturated esters and acids, and fused polycycles. They can be transformed into more elaborated molecular skeletons by the use of chemical handles generated in their own domino reactions or by appending different functionalities to the pluripotent molecular platform (secondary reactivity principles).
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Affiliation(s)
- David Tejedor
- Department of Biological
Chemistry and Biotechnology, Instituto de Productos Naturales y Agrobiología, CSIC, Astrofísico Francisco Sánchez 3, 38206 La Laguna, Tenerife, Islas Canarias, Spain
| | - Sara López-Tosco
- Department of Biological
Chemistry and Biotechnology, Instituto de Productos Naturales y Agrobiología, CSIC, Astrofísico Francisco Sánchez 3, 38206 La Laguna, Tenerife, Islas Canarias, Spain
| | - Gabriela Méndez-Abt
- Department of Biological
Chemistry and Biotechnology, Instituto de Productos Naturales y Agrobiología, CSIC, Astrofísico Francisco Sánchez 3, 38206 La Laguna, Tenerife, Islas Canarias, Spain
| | - Leandro Cotos
- Department of Biological
Chemistry and Biotechnology, Instituto de Productos Naturales y Agrobiología, CSIC, Astrofísico Francisco Sánchez 3, 38206 La Laguna, Tenerife, Islas Canarias, Spain
| | - Fernando García-Tellado
- Department of Biological
Chemistry and Biotechnology, Instituto de Productos Naturales y Agrobiología, CSIC, Astrofísico Francisco Sánchez 3, 38206 La Laguna, Tenerife, Islas Canarias, Spain
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25
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Affiliation(s)
- Sunghyun Hwang
- Department
of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Inhwan Baek
- Department
of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Chulbom Lee
- Department
of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
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26
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Tejedor D, Cotos L, Márquez-Arce D, Odriozola-Gimeno M, Torrent-Sucarrat M, Cossío FP, García-Tellado F. Microwave-Assisted Organocatalyzed Rearrangement of Propargyl Vinyl Ethers to Salicylaldehyde Derivatives: An Experimental and Theoretical Study. Chemistry 2015; 21:18280-9. [DOI: 10.1002/chem.201503171] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Indexed: 01/13/2023]
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27
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Fraile A, Parra A, Tortosa M, Alemán J. Organocatalytic transformations of alkynals, alkynones, propriolates, and related electron-deficient alkynes. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.07.023] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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28
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Tejedor D, Cotos L, Méndez-Abt G, García-Tellado F. General synthesis of substituted 1,2-dihydropyridines. J Org Chem 2014; 79:10655-61. [PMID: 25286254 DOI: 10.1021/jo501991s] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A general and practical metal-free protocol for the synthesis of 1,2-dihydropyridines with wide structural/functional diversity at the ring and featuring mono, double, or spiro substitution at the sp(3) position is described. The protocol entails a microwave-assisted domino reaction of a propargyl vinyl ether (secondary or tertiary) and a primary amine (aliphatic or aromatic) in toluene or methanol.
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Affiliation(s)
- David Tejedor
- Departamento de Química Biológica y Biotecnología, Instituto de Productos Naturales y Agrobiología, CSIC , Astrofísico Francisco Sánchez 3, 38206 La Laguna, Tenerife, Spain
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29
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Matviitsuk A, Berndt F, Mahrwald R. Four into One: Organocatalyzed Stereoselective Conjugate Addition of Unprotected and Unactivated Carbohydrates. Org Lett 2014; 16:5474-7. [DOI: 10.1021/ol5027443] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Anastassia Matviitsuk
- Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Straße 2, 12489 Berlin, Germany
| | - Falko Berndt
- Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Straße 2, 12489 Berlin, Germany
| | - Rainer Mahrwald
- Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Straße 2, 12489 Berlin, Germany
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