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Reed KB, d'Oelsnitz S, Brooks SM, Wells J, Zhao M, Trivedi A, Eshraghi S, Alper HS. Fluorescence-Based Screens for Engineering Enzymes Linked to Halogenated Tryptophan. ACS Synth Biol 2024; 13:1373-1381. [PMID: 38533851 DOI: 10.1021/acssynbio.3c00616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
Directed evolution is often limited by the throughput of accurate screening methods. Here we demonstrate the feasibility of utilizing a singular transcription factor (TF)-system that can be refactored in two ways (both as an activator and repressor). Specifically, we showcase the use of previously evolved 5-halo- or 6-halo-tryptophan-specific TF biosensors suitable for the detection of a halogenated tryptophan molecule in vivo. We subsequently validate the biosensor's utility for two halogenase-specific halo-tryptophan accumulation screens. First, we isolated 5-tryptophan-halogenase, XsHal, from a mixed pool of halogenases with 100% efficiency. Thereafter, we generated a targeted library of the catalytic residue of 6-tryptophan halogenase, Th-Hal, and isolated functioning halogenases with 100% efficiency. Lastly, we refactor the TF circuit to respond to the depletion of halogenated tryptophan and prototype a high-throughput biosensor-directed evolution scheme to screen for downstream enzyme variants capable of promiscuously converting halogenated tryptophan. Altogether, this work takes a significant step toward the rapid and higher throughput screening of halogenases and halo-tryptophan converting enzymes to further reinforce efforts to enable high-level bioproduction of halogenated chemicals.
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Affiliation(s)
- Kevin B Reed
- McKetta Department of Chemical Engineering, The University of Texas at Austin, 200 E. Dean Keeton Street Stop C0400, Austin, Texas 78712, United States
| | - Simon d'Oelsnitz
- Institute for Cellular and Molecular Biology, The University of Texas at Austin, 2500 Speedway Avenue, Austin, Texas 78712, United States
| | | | - Jordan Wells
- McKetta Department of Chemical Engineering, The University of Texas at Austin, 200 E. Dean Keeton Street Stop C0400, Austin, Texas 78712, United States
| | - Minye Zhao
- McKetta Department of Chemical Engineering, The University of Texas at Austin, 200 E. Dean Keeton Street Stop C0400, Austin, Texas 78712, United States
| | - Adit Trivedi
- McKetta Department of Chemical Engineering, The University of Texas at Austin, 200 E. Dean Keeton Street Stop C0400, Austin, Texas 78712, United States
| | - Selina Eshraghi
- McKetta Department of Chemical Engineering, The University of Texas at Austin, 200 E. Dean Keeton Street Stop C0400, Austin, Texas 78712, United States
| | - Hal S Alper
- McKetta Department of Chemical Engineering, The University of Texas at Austin, 200 E. Dean Keeton Street Stop C0400, Austin, Texas 78712, United States
- Institute for Cellular and Molecular Biology, The University of Texas at Austin, 2500 Speedway Avenue, Austin, Texas 78712, United States
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2
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Cunningham L, Guiry PJ. Design and Synthesis of a Ferrocene-Based Diol Library and Application in the Hetero-Diels-Alder Reaction. Chemistry 2023; 29:e202203006. [PMID: 36322831 PMCID: PMC10108280 DOI: 10.1002/chem.202203006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/31/2022] [Accepted: 11/02/2022] [Indexed: 11/06/2022]
Abstract
Diol scaffolds have been utilized as highly effective catalysts and ligands in a wide range of catalytic asymmetric transformations. For scaffolds to be successful as broadly used motifs, they should be prepared cheaply through facile routes and be easily handled. Herein, the synthesis of a family of planar chiral diols based on a modular and robust three-step route is described, which yields catalytically active diols in >99 % de and >99 % ee, with up to seven different chiral elements. These diols have been characterized by X-ray crystallographic analysis, which provides clear evidence for the likely transition state when applied in the asymmetric hetero-Diels-Alder reaction. Without altering the stereochemistry of the catalyst backbone, it is possible to access both enantiomers of the product by varying the substitution of the catalyst at the α-position.
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Affiliation(s)
- Laura Cunningham
- Centre for Synthesis and Chemical Biology School of Chemistry, University College Dublin Belfield, Dublin 4, Ireland
| | - Patrick J Guiry
- Centre for Synthesis and Chemical Biology School of Chemistry, University College Dublin Belfield, Dublin 4, Ireland
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3
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Rahman A, Ningegowda NB, Siddappa MK, Pargi M, Kumaraswamy HM, Satyanarayan ND, Achur R. Synthesis of Palladium-Catalysed C-C Bond Forming 5-Chloro Quinolines via Suzuki-Miyaura Coupling; Anti-Pancreatic Cancer Screening on PANC-1 Cell Lines. Chem Biodivers 2023; 20:e202200622. [PMID: 36437502 DOI: 10.1002/cbdv.202200622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 11/21/2022] [Accepted: 11/25/2022] [Indexed: 11/29/2022]
Abstract
Pancreatic cancer is the most severe among other cancers due to its late detection and less chance of survivability. Heterocycles are proven ring systems in the treatment of various cancers and this is due to the presence of two biodynamic molecules combined, which have a greater synergistic efficacy in many anticancer drugs. Quinoline and pyridine ring systems are brought together to obtain greater potency and this is achieved by coupling both using Pd-catalyst, and in the present investigation, Suzuki-Miyaura coupling (SMC) reactions are adopted to generate potent molecular entities. Pancreatic cancer is difficult to treat due to overexpression of the VEGFR2 protein. VEGFR2 is targeted to design the molecules of quinoline-coupled pyridine moieties and is docked to evaluate the protein-ligand interaction at the binding site. The binding affinity of conjugates revealed the potency and capability of ligands to inhibit the VEGFR2 pathway. The in-silico ADMET properties determined their inherent pharmacokinetic feasibility. The synthesized conjugates have been evaluated by MTT assay against the human pancreatic cancer cell lines (PANC-1). Among the series, compounds 5d, 5e, and 5h exhibited a greater inhibitory activity against the cell lines with an IC50 value of 82.32±1.38, 54.74±1.18 and 80.35±1.68 μM. In the present exploration, 5e exhibited greater inhibitory activity and it could be a promising lead for the development of new chemotherapeutics against pancreatic cancer.
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Affiliation(s)
- Abdul Rahman
- Department of Pharmaceutical Chemistry, Kuvempu University, Post Graduate Center, Kadur, Chikkamagaluru, Karnataka, India -, 577548
| | - Nippu Belur Ningegowda
- Department of Pharmaceutical Chemistry, Kuvempu University, Post Graduate Center, Kadur, Chikkamagaluru, Karnataka, India -, 577548
| | - Manjunatha Kammathalli Siddappa
- Department of Pharmaceutical Chemistry, Kuvempu University, Post Graduate Center, Kadur, Chikkamagaluru, Karnataka, India -, 577548
| | - Meghana Pargi
- Laboratory of Experimental Medicine, Department of Biotechnology, Kuvempu University, Shankargatta, Shimoga, Karnataka, India -, 577451
| | | | - Nayak Devappa Satyanarayan
- Department of Pharmaceutical Chemistry, Kuvempu University, Post Graduate Center, Kadur, Chikkamagaluru, Karnataka, India -, 577548
| | - Rajeshwara Achur
- Department of Biochemistry, Kuvempu University, Shankargatta, Shimoga, Karnataka, India -, 577451
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4
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Tomanová M, Kozlanská K, Jorda R, Jedinák L, Havlíková T, Řezníčková E, Peřina M, Klener P, Dolníková A, Cankař P, Kryštof V. Synthesis and Structural Optimization of 2,7,9-Trisubstituted purin-8-ones as FLT3-ITD Inhibitors. Int J Mol Sci 2022; 23:ijms232416169. [PMID: 36555810 PMCID: PMC9782245 DOI: 10.3390/ijms232416169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/14/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022] Open
Abstract
Therapy of FLT3-positive acute myeloid leukemia still remains complicated, despite the availability of newly approved kinase inhibitors. Various strategies to avoid the reduced efficacy of therapy have been explored, including the development of dual targeting compounds, which inhibit FLT3 and another kinase necessary for the survival and proliferation of AML cells. We have designed new 2,7,9-trisubstituted 8-oxopurines as FLT3 inhibitors and report here the structure-activity relationship studies. We demonstrated that substituents at positions 7 and 9 modulate activity between CDK4 and FLT3 kinase, and the isopropyl group at position 7 substantially increased the selectivity toward FLT3 kinase, which led to the discovery of compound 15a (9-cyclopentyl-7-isopropyl-2-((4-(piperazin-1-yl)phenyl)amino)-7,9-dihydro-8H-purin-8-one). Cellular analyses in MV4-11 cells revealed inhibition of autophosphorylation of FLT3 kinase in nanomolar doses, including the suppression of downstream STAT5 and ERK1/2 phosphorylation. We also describe mechanistic studies in cell lines and activity in a mouse xenograft model in vivo.
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Affiliation(s)
- Monika Tomanová
- Department of Organic Chemistry, Faculty of Science, Palacký University Olomouc, 17. listopadu 1192/12, 77900 Olomouc, Czech Republic
| | - Karolína Kozlanská
- Department of Experimental Biology, Faculty of Science, Palacký University Olomouc, Šlechtitelů 27, 78371 Olomouc, Czech Republic
| | - Radek Jorda
- Department of Experimental Biology, Faculty of Science, Palacký University Olomouc, Šlechtitelů 27, 78371 Olomouc, Czech Republic
| | - Lukáš Jedinák
- Department of Organic Chemistry, Faculty of Science, Palacký University Olomouc, 17. listopadu 1192/12, 77900 Olomouc, Czech Republic
| | - Tereza Havlíková
- Department of Organic Chemistry, Faculty of Science, Palacký University Olomouc, 17. listopadu 1192/12, 77900 Olomouc, Czech Republic
| | - Eva Řezníčková
- Department of Experimental Biology, Faculty of Science, Palacký University Olomouc, Šlechtitelů 27, 78371 Olomouc, Czech Republic
| | - Miroslav Peřina
- Department of Experimental Biology, Faculty of Science, Palacký University Olomouc, Šlechtitelů 27, 78371 Olomouc, Czech Republic
| | - Pavel Klener
- First Faculty of Medicine, Institute of Pathological Physiology, Charles University, 12108 Prague, Czech Republic
- First Department of Internal Medicine-Hematology, General University Hospital and First Faculty of Medicine, Charles University, 12808 Prague, Czech Republic
| | - Alexandra Dolníková
- First Faculty of Medicine, Institute of Pathological Physiology, Charles University, 12108 Prague, Czech Republic
| | - Petr Cankař
- Department of Organic Chemistry, Faculty of Science, Palacký University Olomouc, 17. listopadu 1192/12, 77900 Olomouc, Czech Republic
- Correspondence: (P.C.); (V.K.)
| | - Vladimír Kryštof
- Department of Experimental Biology, Faculty of Science, Palacký University Olomouc, Šlechtitelů 27, 78371 Olomouc, Czech Republic
- Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacký University Olomouc, Hněvotínská 5, 77900 Olomouc, Czech Republic
- Correspondence: (P.C.); (V.K.)
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5
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Brückmann J, Müller C, Maisuradze T, Mengele AK, Nauroozi D, Fauth S, Gruber A, Gräfe S, Leopold K, Kupfer S, Dietzek‐Ivanšić B, Rau S. Pyrimidoquinazolinophenanthroline Opens Next Chapter in Design of Bridging Ligands for Artificial Photosynthesis**. Chemistry 2022; 28:e202200766. [PMID: 35719124 PMCID: PMC9546224 DOI: 10.1002/chem.202200766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Indexed: 11/08/2022]
Abstract
The synthesis and detailed characterization of a new Ru polypyridine complex containing a heteroditopic bridging ligand with previously unexplored metal‐metal distances is presented. Due to the twisted geometry of the novel ligand, the resultant division of the ligand in two distinct subunits leads to steady state as well as excited state properties of the corresponding mononuclear Ru(II) polypyridine complex resembling those of prototype [Ru(bpy)3]2+ (bpy=2,2'‐bipyridine). The localization of the initially optically excited and the nature of the long‐lived excited states on the Ru‐facing ligand spheres is evaluated by resonance Raman and fs‐TA spectroscopy, respectively, and supported by DFT and TDDFT calculations. Coordination of a second metal (Zn or Rh) to the available bis‐pyrimidyl‐like coordination sphere strongly influences the frontier orbitals, apparent by, for example, luminescence quenching. Thus, the new bridging ligand motif offers electronic properties, which can be adjusted by the nature of the second metal center. Using the heterodinuclear Ru−Rh complex, visible light‐driven reduction of NAD+ to NADH was achieved, highlighting the potential of this system for photocatalytic applications.
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Affiliation(s)
- Jannik Brückmann
- Institute of Inorganic Chemistry I Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Carolin Müller
- Institute of Physical Chemistry Friedrich-Schiller University Jena Helmholtzweg 4 07743 Jena Germany
- Leibniz Institute of Photonic Technology (IPHT) e.V. Department Functional Interfaces Albert-Einstein-Straße 9 07745 Jena Germany
| | - Tamar Maisuradze
- Institute of Physical Chemistry Friedrich-Schiller University Jena Helmholtzweg 4 07743 Jena Germany
| | - Alexander K. Mengele
- Institute of Inorganic Chemistry I Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Djawed Nauroozi
- Institute of Inorganic Chemistry I Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Sven Fauth
- Institute of Inorganic Chemistry I Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Andreas Gruber
- Institute of Analytical and Bioanalytical Chemistry Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Stefanie Gräfe
- Institute of Physical Chemistry Friedrich-Schiller University Jena Helmholtzweg 4 07743 Jena Germany
| | - Kerstin Leopold
- Institute of Analytical and Bioanalytical Chemistry Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Stephan Kupfer
- Institute of Physical Chemistry Friedrich-Schiller University Jena Helmholtzweg 4 07743 Jena Germany
| | - Benjamin Dietzek‐Ivanšić
- Institute of Physical Chemistry Friedrich-Schiller University Jena Helmholtzweg 4 07743 Jena Germany
- Leibniz Institute of Photonic Technology (IPHT) e.V. Department Functional Interfaces Albert-Einstein-Straße 9 07745 Jena Germany
| | - Sven Rau
- Institute of Inorganic Chemistry I Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
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6
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Discovery of azaspirocyclic 1H-3,4,5-Trisubstitued pyrazoles as novel G2019S-LRRK2 selective kinase inhibitors. Eur J Med Chem 2022; 242:114693. [PMID: 36049274 DOI: 10.1016/j.ejmech.2022.114693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/12/2022] [Accepted: 08/13/2022] [Indexed: 11/22/2022]
Abstract
Mutations in the Leucine Rich Repeat Protein Kinase 2 gene (LRRK2) are genetic predispositions for Parkinson's Disease, of which the G2019S (GS) missense mutation is the most common. GS-LRRK2 has a hyperactive kinase, and although numerous drug discovery programs have targeted the LRRK2 kinase, few have reached clinical trials. We recently reported on the discovery of a novel LRRK2 kinase inhibitor chemotype, 1H-pyrazole biaryl sulfonamides. Although both potent and selective GS-LRRK2 inhibitors, 1H-pyrazole biaryl sulfonamides are incapable of crossing the blood-brain barrier. Retaining the core 1H-pyrazole and focusing our efforts on a phenylsulfonamide bioisosteric replacement, we report the discovery and preliminary development of azaspirocyclic 1H-3,4,5-trisubstituted pyrazoles as potent and selective (>2000-fold) GS-LRRK2 kinase inhibitors capable of entering rodent brain. The compounds disclosed here present an excellent starting point for the development of more brain penetrant compounds.
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7
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Bhurta D, Bharate SB. Styryl Group, a Friend or Foe in Medicinal Chemistry. ChemMedChem 2022; 17:e202100706. [PMID: 35166041 DOI: 10.1002/cmdc.202100706] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 02/12/2022] [Indexed: 11/10/2022]
Abstract
The styryl (Ph-CH=CH-R) group is widely represented in medicinally important compounds, including drugs, clinical candidates, and molecular probes as it positively impacts the lipophilicity, oral absorption, and biological activity. The analysis of matched molecular pairs (styryl vs. phenethyl, phenyl, methyl, H) for the biological activity indicates the superiority aspect of styryl compounds. However, the Michael acceptor site in the styryl group makes it amenable to the nucleophilic attack by biological nucleophiles and transformation to the toxic metabolites. One of the downsides of styryl compounds is isomerization that impacts the molecular conformation and directly affects biological activity. The impact of cis-trans isomerism and isosteric replacements on biological activity is exemplified. We also discuss the styryl group-bearing drugs, clinical candidates, and fluorescent probes. Overall, the present review reveals the utility of the styryl group in medicinal chemistry and drug discovery.
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Affiliation(s)
- Deendyal Bhurta
- Council of Scientific & Industrial Research Indian Institute of Integrative Medicine, Natural Products and medicinal chemistry, 180001, Jammu, INDIA
| | - Sandip Bibishan Bharate
- Indian Institute of Integrative Medicine CSIR, Natural Products & Medicinal Chemistry, Canal Road, 180001, Jammu, INDIA
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8
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Yang X, Wu C, Su W, Yu J. Mechanochemical C−X/C−H Functionalization: An Alternative Strategy Access to Pharmaceuticals. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101440] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xinjie Yang
- Zhejiang University of Technology Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Chaowang Road 18# 310014 Hangzhou CHINA
| | - Chongyang Wu
- Zhejiang University of Technology Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Chaowang Road 18# 310014 Hangzhou CHINA
| | - Weike Su
- Zhejiang University of Technology Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Chaowang Road 18# 310014 Hangzhou CHINA
| | - Jingbo Yu
- Zhejiang University of Technology Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Chaowang Road 18# 310014 Hangzhou CHINA
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9
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Itakhunov RN, Odin IS, Gusev DM, Grabovskiy SA, Gordon KV, Vologzhanina AV, Sokov SA, Sosnin IM, Golovanov AA. Cyclization of arylhydrazones of cross-conjugated enynones: synthesis of luminescent styryl-1 H-pyrazoles and propenyl-1 H-pyrazoles. Org Biomol Chem 2022; 20:8693-8713. [DOI: 10.1039/d2ob01427k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
On the basis of available ethynyl vinyl ketones and arylhydrazines, the authors have developed the two-stage synthesis method for styrylpyrazoles possessing fluorescent abilities, as well as the gram-scale synthesis method for fluorescent probes.
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Affiliation(s)
- Radik N. Itakhunov
- S. P. Korshunov Research Laboratory No. 13, Department Chemical Technology and Resource Conservation, Togliatti State University, Belorusskaya Str. 14, Togliatti, 445020, Russia
| | - Ivan S. Odin
- S. P. Korshunov Research Laboratory No. 13, Department Chemical Technology and Resource Conservation, Togliatti State University, Belorusskaya Str. 14, Togliatti, 445020, Russia
| | - Dmitry M. Gusev
- S. P. Korshunov Research Laboratory No. 13, Department Chemical Technology and Resource Conservation, Togliatti State University, Belorusskaya Str. 14, Togliatti, 445020, Russia
| | - Stanislav A. Grabovskiy
- S. P. Korshunov Research Laboratory No. 13, Department Chemical Technology and Resource Conservation, Togliatti State University, Belorusskaya Str. 14, Togliatti, 445020, Russia
- Laboratory of Chemical Kinetics, Ufa Institute of Chemistry, UFRS of the Russian Academy of Science, October Av. 71, Ufa, 450054, Russia
| | - Kareem V. Gordon
- S. P. Korshunov Research Laboratory No. 13, Department Chemical Technology and Resource Conservation, Togliatti State University, Belorusskaya Str. 14, Togliatti, 445020, Russia
| | - Anna V. Vologzhanina
- Laboratory for X-Ray Diffraction Studies – X-Ray Structural Centre (XRSC), A. N. Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Science, 28 Vavilova Str., Moscow, 119334, Russia
| | - Sergey A. Sokov
- S. P. Korshunov Research Laboratory No. 13, Department Chemical Technology and Resource Conservation, Togliatti State University, Belorusskaya Str. 14, Togliatti, 445020, Russia
| | - Ilya M. Sosnin
- S. P. Korshunov Research Laboratory No. 13, Department Chemical Technology and Resource Conservation, Togliatti State University, Belorusskaya Str. 14, Togliatti, 445020, Russia
| | - Alexander A. Golovanov
- S. P. Korshunov Research Laboratory No. 13, Department Chemical Technology and Resource Conservation, Togliatti State University, Belorusskaya Str. 14, Togliatti, 445020, Russia
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10
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Li X, Li J, Wang X, Wu L, Wang Y, Maestri G, Malacria M, Liu X. Photoelectric properties of aromatic triangular tri-palladium complexes and their catalytic applications in the Suzuki-Miyaura coupling reaction. Dalton Trans 2021; 50:11834-11842. [PMID: 34369501 DOI: 10.1039/d1dt01597d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The photoelectric properties and catalytic activities of substituted triphenylphosphine and sulfur/selenium ligand supported aromatic triangular tri-palladium complexes 1-4, abbreviated as [Pd3]+, were investigated. The cyclic voltammogram of [Pd3]+ in CH3CN-nBu4NPF6 showed a single quasi-reversible wave which was consistent with their robust property and provided preliminary proof for their electron transfer processes in catalysis. With excitation at 267 nm, [Pd3]+ exhibited strong ratiometric fluorescence at 550 and 780 nm at a temperature gradient from 77 K to 287 K. These peculiar triangular tri-palladium complexes showed excellent catalytic activities and exclusive reactivity with aryl iodides over the other halogenated aromatics in the Suzuki-Miyaura coupling reaction. The electronic and steric hindrance effects of substituents on the aryl iodides and aryl boronic acids including heteroaromatics like pyridine, pyrazine and thiophenes were explored and most substrates achieved up to 99% of yields. (2-[1,1'-Biphenyl]-2-ylbenzothiazole) which was analogous to the selective cyclooxygenase-2 (COX-2) inhibitors was also synthesized with our tri-palladium catalyst and gave good isolated yield (94%). The study of the catalytic process revealed that the mechanism of the reaction may involve the replacement of the sulphur ligand on [Pd3]+ by iodine from aryl iodides, which was beneficial for the matching of C-I bond energy.
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Affiliation(s)
- Xujun Li
- Department of chemistry and chemical engineering, Liaocheng University, 252059, Liaocheng, China.
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11
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Khandazhinskaya A, Eletskaya B, Fateev I, Kharitonova M, Konstantinova I, Barai V, Azhayev A, Hyvonen MT, Keinanen TA, Kochetkov S, Seley-Radtke K, Khomutov A, Matyugina E. Novel fleximer pyrazole-containing adenosine analogues: chemical, enzymatic and highly efficient biotechnological synthesis. Org Biomol Chem 2021; 19:7379-7389. [PMID: 34198312 DOI: 10.1039/d1ob01069g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nucleoside analogues have long served as key chemotherapeutic drugs for the treatment of viral infections and cancers. Problems associated with the development of drug resistance have led to a search for the design of nucleosides capable of bypassing point mutations in the target enzyme's binding site. As a possible answer to this, the Seley-Radtke group developed a flexible nucleoside scaffold (fleximers), where the heterocyclic purine base is split into its two components, i.e. pyrimidine and imidazole. Herein, we present a series of new pyrazole-containing flex-bases and the corresponding fleximer analogues of 8-aza-7-deaza nucleosides. Subsequent studies found that pyrazole-containing flex-bases are substrates of purine nucleoside phosphorylase (PNP). We have compared the chemical synthesis of fleximers and enzymatic approaches with both isolated enzymes and the use of E. coli cells overproducing PNP. The latter provided stereochemically pure pyrazole-containing β-d-ribo- and β-d-2'-deoxyribo-fleximers and are beneficial in terms of environmental issues, are more economical, and streamline the steps required from a chemical approach. The reaction is carried out in water, avoiding hazardous chemicals, and the products are isolated by ion-exchange chromatography using water/ethanol mixtures for elution. Moreover, the target nucleosides were obtained on a multi-milligram scale with >97-99% purity, and the reactions can be easily scaled up.
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Affiliation(s)
- Anastasia Khandazhinskaya
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, 32 Vavilov St., Moscow 119991, Russia
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12
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Unexpected structural defects in a main-chain conjugated polymer synthesized through Suzuki-Miyaura cross coupling polymerization. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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13
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Jismy B, Guillaumet G, Akssira M, Tikad A, Abarbri M. Efficient microwave-assisted Suzuki–Miyaura cross-coupling reaction of 3-bromo pyrazolo[1,5- a]pyrimidin-5(4 H)-one: towards a new access to 3,5-diarylated 7-(trifluoromethyl)pyrazolo[1,5- a]pyrimidine derivatives. RSC Adv 2021; 11:1287-1302. [PMID: 35747396 PMCID: PMC9134006 DOI: 10.1039/d0ra07959f] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 12/06/2020] [Indexed: 12/24/2022] Open
Abstract
A convenient and efficient synthetic route to C3-arylated 7-trifluoromethylpyrazolo[1,5-a]pyrimidin-5-one derivatives has been reported starting from 3-bromo-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidin-5-one through a Suzuki–Miyaura cross-coupling reaction. The arylation (heteroarylation) strategy can be performed using a wide variety of aryl and heteroaryl boronic acids and requiring a tandem catalyst XPhosPdG2/XPhos to avoid the debromination reaction. These optimized conditions were successfully extended to the synthesis of 7-, 8- and 9-arylated pyrimido[1,2-b]indazol-2-ones from their corresponding brominated starting materials. Furthermore, the second C-5 arylation of C3-arylated pyrazolo[1,5-a]pyrimidin-5-ones was achieved under standard Suzuki–Miyaura cross-coupling conditions, after activating the C–O bond of the lactam function with PyBroP, giving access to a small library of 3,5-diarylated 7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidines in good to excellent yields. The interest of this approach has been highlighted by the synthesis of a known anti-inflammatory agent. Additionally, a preliminary biological evaluation has revealed that a number of derivatives display micromolar IC50 values against monoamine oxidase B, an important target in the field of neurodegenerative disorders. A convenient and efficient synthetic route to C3-arylated 7-trifluoromethylpyrazolo[1,5-a]pyrimidin-5-one derivatives has been reported starting from 3-bromo-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidin-5-one through a Suzuki–Miyaura cross-coupling reaction.![]()
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Affiliation(s)
- Badr Jismy
- Laboratoire de Physico-Chimie des Matériaux et des Electrolytes pour l'Energie (PCM2E). EA 6299
- Faculté des Sciences
- 37200 Tours
- France
| | - Gérald Guillaumet
- Institut de Chimie Organique et Analytique (ICOA)
- Université d'Orléans
- UMR CNRS 7311
- France
| | - Mohamed Akssira
- Laboratoire de Chimie Physique et de Chimie Bioorganique
- URAC 22
- 28800 Mohammedia
- Morocco
| | - Abdellatif Tikad
- Laboratoire de Chimie Moléculaire et Substances Naturelles
- Faculté des Sciences
- Département de Chimie
- Université Moulay Ismail
- Meknès 50050
| | - Mohamed Abarbri
- Laboratoire de Physico-Chimie des Matériaux et des Electrolytes pour l'Energie (PCM2E). EA 6299
- Faculté des Sciences
- 37200 Tours
- France
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14
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Gomes PMO, Ouro PMS, Silva AMS, Silva VLM. Styrylpyrazoles: Properties, Synthesis and Transformations. Molecules 2020; 25:E5886. [PMID: 33322752 PMCID: PMC7764498 DOI: 10.3390/molecules25245886] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 12/06/2020] [Accepted: 12/09/2020] [Indexed: 01/02/2023] Open
Abstract
The pyrazole nucleus and its reduced forms, pyrazolines and pyrazolidine, are privileged scaffolds in medicinal chemistry due to their remarkable biological activities. A huge number of pyrazole derivatives have been studied and reported over time. This review article gives an overview of pyrazole derivatives that contain a styryl (2-arylvinyl) group linked in different positions of the pyrazole backbone. Although there are studies on the synthesis of styrylpyrazoles dating back to the 1970s and even earlier, this type of compound has rarely been studied. This timely review intends to summarize the properties, biological activity, methods of synthesis and transformation of styrylpyrazoles; thus, highlighting the interest and huge potential for application of this kind of compound.
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Affiliation(s)
| | | | - Artur M. S. Silva
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (P.M.O.G.); (P.M.S.O.)
| | - Vera L. M. Silva
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (P.M.O.G.); (P.M.S.O.)
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15
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Synthesis of 2‐Aryl‐ and 2,7‐Diaryl‐1,8‐bis(dimethylamino)naphthalenes. Overview of the “Buttressing effect” in 2,7‐Disubstituted Proton Sponges. ChemistrySelect 2020. [DOI: 10.1002/slct.202002745] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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16
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Bhaskaran S, Padusha MSA, Sajith AM. Application of Palladium Based Precatalytic Systems in the Suzuki‐Miyaura Cross‐Coupling Reactions of Chloro‐ Heterocycles. ChemistrySelect 2020. [DOI: 10.1002/slct.202002357] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Savitha Bhaskaran
- Postgraduate and Research Department of ChemistryJamal Mohamed College, Bharathidasan University Tiruchirappalli India
| | - M. Syed Ali Padusha
- Postgraduate and Research Department of ChemistryJamal Mohamed College, Bharathidasan University Tiruchirappalli India
| | - Ayyiliath M Sajith
- Ortin laboratories Pvt. Ltd, Malkapur VillageChoutuppal Mandal, Hyderabad Telangana India- 508252
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17
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Porcheddu A, Colacino E, De Luca L, Delogu F. Metal-Mediated and Metal-Catalyzed Reactions Under Mechanochemical Conditions. ACS Catal 2020. [DOI: 10.1021/acscatal.0c00142] [Citation(s) in RCA: 103] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Andrea Porcheddu
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, Cittadella Universitaria, SS 554 bivio per Sestu, 09042 Monserrato, Cagliari, Italy
- Consorzio C.I.N.M.P.I.S., 70125 Bari, Italy
| | | | - Lidia De Luca
- Dipartimento di Chimica e Farmacia, Università degli Studi di Sassari, via Vienna 2, 07100 Sassari, Italy
| | - Francesco Delogu
- Dipartimento di Ingegneria Meccanica, Chimica, e dei Materiali, Università degli Studi di Cagliari, via Marengo 2, 09123 Cagliari, Italy
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18
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Kobayashi T, Hosoya T, Yoshida S. Consecutive Aryne Generation Strategy for the Synthesis of 1,3-Diarylpyrazoles. J Org Chem 2020; 85:4448-4462. [DOI: 10.1021/acs.joc.0c00172] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Tsuneyuki Kobayashi
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Takamitsu Hosoya
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Suguru Yoshida
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
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19
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Taylor MK, Juhl M, Hadaf GB, Hwang D, Velasquez E, Oktawiec J, Lefton JB, Runčevski T, Long JR, Lee JW. Palladium-catalyzed oxidative homocoupling of pyrazole boronic esters to access versatile bipyrazoles and the flexible metal–organic framework Co(4,4′-bipyrazolate). Chem Commun (Camb) 2020; 56:1195-1198. [DOI: 10.1039/c9cc08614e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A facile catalytic protocol achieves the homocoupling of pyrazole boronic esters, enabling access to the structurally-flexible metal–organic framework Co(bpz).
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Affiliation(s)
- Mercedes K. Taylor
- Center for Integrated Nanotechnologies
- Sandia National Laboratories
- Albuquerque
- USA
- Department of Chemistry
| | - Martin Juhl
- Department of Chemistry & Nano-Science Center
- University of Copenhagen
- Denmark
| | - Gul Barg Hadaf
- Department of Chemistry & Nano-Science Center
- University of Copenhagen
- Denmark
| | - Dasol Hwang
- Department of Chemistry & Nano-Science Center
- University of Copenhagen
- Denmark
| | - Ever Velasquez
- Materials Sciences Division
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
- Department of Chemical and Biomolecular Engineering
| | - Julia Oktawiec
- Department of Chemistry
- University of California
- Berkeley
- USA
| | | | | | - Jeffrey R. Long
- Department of Chemistry
- University of California
- Berkeley
- USA
- Materials Sciences Division
| | - Ji-Woong Lee
- Department of Chemistry & Nano-Science Center
- University of Copenhagen
- Denmark
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20
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Cardoza S, Das P, Tandon V. Pd-Catalyzed Sequential Arylation of 7-Azaindoles: Aggregate-Induced Emission of Tetra-Aryl 7-Azaindoles. J Org Chem 2019; 84:14015-14029. [DOI: 10.1021/acs.joc.9b02187] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Savio Cardoza
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi 110067, India
| | - Parthasarathi Das
- Department of Chemistry, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand 826004, India
| | - Vibha Tandon
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi 110067, India
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21
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Iškauskienė M, Ragaitė G, Sløk FA, Šačkus A. Facile synthesis of novel amino acid-like building blocks by N-alkylation of heterocyclic carboxylates with N-Boc-3-iodoazetidine. Mol Divers 2019; 24:1235-1251. [PMID: 31420788 DOI: 10.1007/s11030-019-09987-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 08/08/2019] [Indexed: 01/11/2023]
Abstract
An efficient protocol providing easy access to highly functionalized heterocyclic compounds as novel organic building blocks was developed by coupling alkyl pyrazole-, indazole- and indolecarboxylates with N-Boc-3-iodoazetidine. The synthesized compounds are representatives of constrained non-chiral synthetic azole carboxylates in their N-Boc protected ester forms. Diversification of the prepared heterocyclic building blocks was achieved via application of palladium-catalyzed Suzuki-Miyaura cross-coupling reactions. In total, 34 building blocks were obtained to form a highly diversified small molecule collection. The structure of the novel heterocyclic compounds was investigated and verified by advanced NMR spectroscopy methods.
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Affiliation(s)
- Monika Iškauskienė
- Department of Organic Chemistry, Kaunas University of Technology, Radvilėnų pl. 19, 50254, Kaunas, Lithuania. .,Institute of Synthetic Chemistry, Kaunas University of Technology, K. Baršausko g. 59, 51423, Kaunas, Lithuania.
| | - Greta Ragaitė
- Institute of Synthetic Chemistry, Kaunas University of Technology, K. Baršausko g. 59, 51423, Kaunas, Lithuania
| | - Frank A Sløk
- Vipergen ApS, Gammel Kongevej 23A, 1610, Copenhagen V, Denmark
| | - Algirdas Šačkus
- Department of Organic Chemistry, Kaunas University of Technology, Radvilėnų pl. 19, 50254, Kaunas, Lithuania.,Institute of Synthetic Chemistry, Kaunas University of Technology, K. Baršausko g. 59, 51423, Kaunas, Lithuania
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22
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Yeh HW, Xiong Y, Wu T, Chen M, Ji A, Li X, Ai HW. ATP-Independent Bioluminescent Reporter Variants To Improve in Vivo Imaging. ACS Chem Biol 2019; 14:959-965. [PMID: 30969754 DOI: 10.1021/acschembio.9b00150] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Coelenterazine (CTZ)-utilizing marine luciferases and their derivatives have attracted significant attention because of their ATP-independency, fast enzymatic turnover, and high bioluminescence brightness. However, marine luciferases typically emit blue photons and their substrates, including CTZ and the recently developed diphenylterazine (DTZ), have poor water solubility, hindering their in vivo applications. Herein, we report a family of pyridyl CTZ and DTZ analogs that exhibit spectrally shifted emission and improved water solubility. Through directed evolution, we engineered a LumiLuc luciferase with broad substrate specificity. In the presence of corresponding pyridyl substrates (i.e., pyCTZ, 6pyDTZ, or 8pyDTZ), LumiLuc generates highly bright blue, teal, or yellow bioluminescence. We compared our LumiLuc-8pyDTZ pair with several benchmark reporters in a tumor xenograft mouse model. Our new pair, which does not need organic cosolvents for in vivo administration, surpasses other reporters by detecting early tumors. We further fused LumiLuc to a red fluorescent protein, resulting in a LumiScarlet reporter with further red-shifted emission and enhanced tissue penetration. LumiScarlet-8pyDTZ was comparable to Akaluc-AkaLumine, the brightest ATP-dependent luciferase-luciferin pair, for detecting cells in deep tissues of mice. In summary, we have engineered a new family of ATP-independent bioluminescent reporters, which will have broad applications because of their ATP-independency, excellent biocompatibility, and superior in vivo sensitivity.
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Affiliation(s)
- Hsien-Wei Yeh
- Center for Membrane and Cell Physiology, Department of Molecular Physiology and Biological Physics, Department of Chemistry, and the UVA Cancer Center, University of Virginia, 1340 Jefferson Park Avenue, Charlottesville, Virginia 22908, United States
| | - Ying Xiong
- Center for Membrane and Cell Physiology, Department of Molecular Physiology and Biological Physics, Department of Chemistry, and the UVA Cancer Center, University of Virginia, 1340 Jefferson Park Avenue, Charlottesville, Virginia 22908, United States
| | - Tianchen Wu
- Center for Membrane and Cell Physiology, Department of Molecular Physiology and Biological Physics, Department of Chemistry, and the UVA Cancer Center, University of Virginia, 1340 Jefferson Park Avenue, Charlottesville, Virginia 22908, United States
| | - Minghai Chen
- Center for Membrane and Cell Physiology, Department of Molecular Physiology and Biological Physics, Department of Chemistry, and the UVA Cancer Center, University of Virginia, 1340 Jefferson Park Avenue, Charlottesville, Virginia 22908, United States
| | - Ao Ji
- Center for Membrane and Cell Physiology, Department of Molecular Physiology and Biological Physics, Department of Chemistry, and the UVA Cancer Center, University of Virginia, 1340 Jefferson Park Avenue, Charlottesville, Virginia 22908, United States
| | - Xinyu Li
- Center for Membrane and Cell Physiology, Department of Molecular Physiology and Biological Physics, Department of Chemistry, and the UVA Cancer Center, University of Virginia, 1340 Jefferson Park Avenue, Charlottesville, Virginia 22908, United States
| | - Hui-wang Ai
- Center for Membrane and Cell Physiology, Department of Molecular Physiology and Biological Physics, Department of Chemistry, and the UVA Cancer Center, University of Virginia, 1340 Jefferson Park Avenue, Charlottesville, Virginia 22908, United States
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23
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Shaabani A, Nazeri MT, Afshari R. 5-Amino-pyrazoles: potent reagents in organic and medicinal synthesis. Mol Divers 2018; 23:751-807. [PMID: 30552550 DOI: 10.1007/s11030-018-9902-8] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 12/04/2018] [Indexed: 12/31/2022]
Abstract
5-Amino-pyrazoles have proven to be a class of fascinating and privileged organic tools for the construction of diverse heterocyclic or fused heterocyclic scaffolds. This review presents comprehensively the applications of 5-amino-pyrazoles as versatile synthetic building blocks in the synthesis of remarkable organic molecules with an emphasis on versatile functionalities. Following a brief introduction of synthesis methods, planning strategies to construct organic compounds, particularly diverse heterocyclic scaffolds, such as poly-substituted heterocyclic compounds and fused heterocyclic compounds via 5-amino-pyrazoles, have been summarized. Fused heterocycles are classified as bicyclic, tricyclic, tetracyclic, and spiro-fused pyrazole derivatives. These outstanding compounds synthesized via wide variety of approaches include conventional reactions, one-pot multi-component reactions, cyclocondensation, cascade/tandem protocols, and coupling reactions. 5-Amino-pyrazoles represent a class of promising functional reagents, similar to the biologically active compounds, highlighted with diverse applications especially in the field of pharmaceutics and medicinal chemistry. Notably, this critical review covers the articles published from 1981 to 2018.
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Affiliation(s)
- Ahmad Shaabani
- Faculty of Chemistry, Shahid Beheshti University, G. C., P. O. Box 19396-4716, Tehran, Iran.
| | - Mohammad Taghi Nazeri
- Faculty of Chemistry, Shahid Beheshti University, G. C., P. O. Box 19396-4716, Tehran, Iran
| | - Ronak Afshari
- Faculty of Chemistry, Shahid Beheshti University, G. C., P. O. Box 19396-4716, Tehran, Iran
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24
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Pijeat J, Dappe YJ, Thuéry P, Campidelli S. Synthesis and Suzuki-Miyaura cross coupling reactions for post-synthetic modification of a tetrabromo-anthracenyl porphyrin. Org Biomol Chem 2018; 16:8106-8114. [PMID: 30328882 DOI: 10.1039/c8ob02150c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The outstanding properties of porphyrins and the extreme versatility of their synthesis and their functionalisation constitute real assets for the fabrication of opto- and electroactive materials or for biological applications. In the large collection of porphyrinic structures, meso-substituted anthracenylporphyrins are among the less studied. Here, we synthesised the 5,10,15,20-tetra-bromoanthracenylporphyrin (BrTAP) and we investigated its chemical reactivity by post-synthetic modification using Suzuki-Miyaura cross coupling reactions with a series of boronic acids to generate a collection of original tetra-anthracenyl porphyrin based molecules: tetraphenylanthracenylporphyrin (TPAP), tetratolylanthracenylporphyrin (TTAP), tetramethoxyphenylanthracenylporphyrin (TMPAP), tetranaphthylanthracenylporphyrin (TNAP) and tetrapyrenylanthracenylporphyrin (TPyAP). Optical characterisations of these modified porphyrins showed, in most cases, only emission of the porphyrin in the visible region with extinction of the fluorescence of PAHs in the UV or visible region.
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Affiliation(s)
- Joffrey Pijeat
- LICSEN, NIMBE, CEA, CNRS, Université Paris-Saclay, CEA Saclay, 91191 Gif-sur-Yvette Cedex, France.
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25
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Yu J, Hong Z, Yang X, Jiang Y, Jiang Z, Su W. Bromide-assisted chemoselective Heck reaction of 3-bromoindazoles under high-speed ball-milling conditions: synthesis of axitinib. Beilstein J Org Chem 2018; 14:786-795. [PMID: 29719575 PMCID: PMC5905281 DOI: 10.3762/bjoc.14.66] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Accepted: 03/21/2018] [Indexed: 11/25/2022] Open
Abstract
A mechanically-activated chemoselective Heck coupling for the synthesis of 3-vinylindazoles has been developed with the aid of catalytic amounts of TBAB and NaBr as both dehalogenation restrainer and grinding auxiliary. After tuning of the chemical conditions and mechanical parameters, a series of non-activated 3-bromoindazoles and a broad scope of olefins worked well to give the corresponding coupling products in good to excellent yields. A further application of this protocol was performed in a two-step mechanochemical Heck/Migita cross coupling, which provided a highly efficient route for the synthesis of axitinib.
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Affiliation(s)
- Jingbo Yu
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Zikun Hong
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Xinjie Yang
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Yu Jiang
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Zhijiang Jiang
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Weike Su
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, PR China
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26
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Reed KB, Alper HS. Expanding beyond canonical metabolism: Interfacing alternative elements, synthetic biology, and metabolic engineering. Synth Syst Biotechnol 2018; 3:20-33. [PMID: 29911196 PMCID: PMC5884228 DOI: 10.1016/j.synbio.2017.12.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 11/08/2017] [Accepted: 12/09/2017] [Indexed: 12/15/2022] Open
Abstract
Metabolic engineering offers an exquisite capacity to produce new molecules in a renewable manner. However, most industrial applications have focused on only a small subset of elements from the periodic table, centered around carbon biochemistry. This review aims to illustrate the expanse of chemical elements that can currently (and potentially) be integrated into useful products using cellular systems. Specifically, we describe recent advances in expanding the cellular scope to include the halogens, selenium and the metalloids, and a variety of metal incorporations. These examples range from small molecules, heteroatom-linked uncommon elements, and natural products to biomining and nanotechnology applications. Collectively, this review covers the promise of an expanded range of elemental incorporations and the future impacts it may have on biotechnology.
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Affiliation(s)
- Kevin B. Reed
- McKetta Department of Chemical Engineering, The University of Texas at Austin, 200E Dean Keeton St. Stop C0400, Austin, TX 78712, USA
| | - Hal S. Alper
- McKetta Department of Chemical Engineering, The University of Texas at Austin, 200E Dean Keeton St. Stop C0400, Austin, TX 78712, USA
- Institute for Cellular and Molecular Biology, The University of Texas at Austin, 2500 Speedway Avenue, Austin, TX 78712, USA
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27
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Pisár M, Schütznerová E, Hančík F, Popa I, Trávníček Z, Cankař P. Modification of Boc-Protected CAN508 via Acylation and Suzuki-Miyaura Coupling. Molecules 2018; 23:molecules23010149. [PMID: 29329219 PMCID: PMC6017724 DOI: 10.3390/molecules23010149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 12/21/2017] [Accepted: 01/11/2018] [Indexed: 11/16/2022] Open
Abstract
The cyclin-dependent kinase inhibitor, CAN508, was protected with di-tert-butyl dicarbonate to access the amino-benzoylated pyrazoles. The bromo derivatives were further arylated by Suzuki-Miyaura coupling using the XPhos Pd G2 pre-catalyst. The coupling reaction provided generally the para-substituted benzoylpyrazoles in the higher yields than the meta-substituted ones. The Boc groups were only utilized as directing functionalities for the benzoylation step and were hydrolyzed under conditions of Suzuki-Miyaura coupling, which allowed for elimination of the additional deprotection step.
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Affiliation(s)
- Martin Pisár
- Department of Organic Chemistry, Faculty of Science, Palacký University, 17. listopadu 1192/12, 771 46 Olomouc, Czech Republic.
| | - Eva Schütznerová
- Institute of Molecular and Translation Medicine, Faculty of Medicine, Palacký University, Hněvotínská 5, 779 00 Olomouc, Czech Republic.
| | - Filip Hančík
- Department of Organic Chemistry, Faculty of Science, Palacký University, 17. listopadu 1192/12, 771 46 Olomouc, Czech Republic.
| | - Igor Popa
- Department of Inorganic Chemistry, Faculty of Science, Palacký University, 17. listopadu 1192/12, 771 46 Olomouc, Czech Republic.
| | - Zdeněk Trávníček
- Department of Inorganic Chemistry, Faculty of Science, Palacký University, 17. listopadu 1192/12, 771 46 Olomouc, Czech Republic.
| | - Petr Cankař
- Department of Organic Chemistry, Faculty of Science, Palacký University, 17. listopadu 1192/12, 771 46 Olomouc, Czech Republic.
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28
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Kuleshova O, Khilya O, Volovenko Y, Mallet-Ladeira S, Dyakonenko V, Gras E. Expedited Route to Fully Substituted Amino-Pyrazole Building Blocks and Their Further Transformations. ACS OMEGA 2017; 2:8911-8927. [PMID: 31457419 PMCID: PMC6645537 DOI: 10.1021/acsomega.7b01419] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Accepted: 11/23/2017] [Indexed: 06/10/2023]
Abstract
We report here an efficient and easily reproducible two-step approach to heterocycle-substituted amino-pyrazoles from heterocyclic acetonitriles and their unprecedented subsequent transformations to fully substituted pyrazoles. Such transformations include regioselective derivatization from polyamino derivatives, formation of tetracyclic compounds in up to 45% overall yield, and deaminative transformations through diazotization, followed by arylation through Suzuki-Miyaura cross-coupling and C-H activation, providing arylated pyrazoles in up to 71% yield over four steps. This strategy allows the swift introduction of significant molecular complexity to a range of scaffolds.
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Affiliation(s)
- Olena Kuleshova
- Laboratoire
de Chimie de Coordination, Centre National
de la Recherche Scientifique, UPR 8241, Université Fédérale
Toulouse Midi-Pyrénées, 205, Route de Narbonne, Toulouse F-31077, France
- Chemistry
Department, Taras Shevchenko National University
of Kyiv, 64/13 Volodymyrska Street, Kyiv 01601, Ukraine
| | - Olga Khilya
- Chemistry
Department, Taras Shevchenko National University
of Kyiv, 64/13 Volodymyrska Street, Kyiv 01601, Ukraine
| | - Yulian Volovenko
- Chemistry
Department, Taras Shevchenko National University
of Kyiv, 64/13 Volodymyrska Street, Kyiv 01601, Ukraine
| | - Sonia Mallet-Ladeira
- Laboratoire
de Chimie de Coordination, Centre National
de la Recherche Scientifique, UPR 8241, Université Fédérale
Toulouse Midi-Pyrénées, 205, Route de Narbonne, Toulouse F-31077, France
| | - Viktoriya Dyakonenko
- SSI
“Institute for Single Crystals” National Academy of
Science of Ukraine, 60
Nauky Avenue, Kharkiv 61001, Ukraine
| | - Emmanuel Gras
- Laboratoire
de Chimie de Coordination, Centre National
de la Recherche Scientifique, UPR 8241, Université Fédérale
Toulouse Midi-Pyrénées, 205, Route de Narbonne, Toulouse F-31077, France
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29
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Tomanová M, Jedinák L, Košař J, Kvapil L, Hradil P, Cankař P. Synthesis of 4-substituted pyrazole-3,5-diamines via Suzuki-Miyaura coupling and iron-catalyzed reduction. Org Biomol Chem 2017; 15:10200-10211. [PMID: 29177274 DOI: 10.1039/c7ob02373a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A general and efficient synthesis of 4-substituted-1H-pyrazole-3,5-diamines was developed to access derivatives with an aryl, heteroaryl, or styryl group, which are otherwise relatively difficult to prepare. The first step is based on the Suzuki-Miyaura cross-coupling reaction utilizing the XPhos Pd G2 precatalyst. The coupling reactions of 4-bromo-3,5-dinitro-1H-pyrazole with the electron-rich/deficient or sterically demanding boronic acids enabled the production of the corresponding dinitropyrazoles. The subsequent iron-catalyzed reduction of both nitro groups with hydrazine hydrate accomplished the synthesis. The additional demethylation of the 4-methoxystyryl derivative allowed the production of the carboanalog of CAN508 reported as a selective CDK9 inhibitor.
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Affiliation(s)
- Monika Tomanová
- Institute of Molecular and Translation Medicine, Faculty of Medicine, Palacký University, Hněvotínská 5, 77900 Olomouc, Czech Republic
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30
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Douglas T, Pordea A, Dowden J. Iron-Catalyzed Indolizine Synthesis from Pyridines, Diazo Compounds, and Alkynes. Org Lett 2017; 19:6396-6399. [DOI: 10.1021/acs.orglett.7b03252] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tim Douglas
- School
of Chemistry and ‡Department of Chemical and Environmental Engineering, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
| | - Anca Pordea
- School
of Chemistry and ‡Department of Chemical and Environmental Engineering, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
| | - James Dowden
- School
of Chemistry and ‡Department of Chemical and Environmental Engineering, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
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