1
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Bolik KV, Hellmann J, Maschauer S, Neu E, Einsiedel J, Riss P, Vogg N, König J, Fromm MF, Hübner H, Gmeiner P, Prante O. Heteroaryl derivatives of suvorexant as OX1R selective PET ligand candidates: Cu-mediated 18F-fluorination of boroxines, in vitro and initial in vivo evaluation. EJNMMI Res 2024; 14:80. [PMID: 39231867 PMCID: PMC11374953 DOI: 10.1186/s13550-024-01141-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2024] [Accepted: 08/16/2024] [Indexed: 09/06/2024] Open
Abstract
BACKGROUND The orexin receptor (OXR) plays a role in drug addiction and is aberrantly expressed in colorectal tumors. Subtype-selective OXR PET ligands suitable for in vivo use have not yet been reported. This work reports the development of 18F-labeled OXR PET ligand candidates derived from the OXR antagonist suvorexant and the OX1R-selective antagonist JH112. RESULTS Computational analysis predicted that fluorine substitution (1e) and introduction of the fluorobenzothiazole scaffold (1f) would be suitable for maintaining high OX1R affinity. After multi-step synthesis of 1a-1f, in vitro OXR binding studies confirmed the molecular dynamics calculations and revealed single-digit nanomolar OX1R affinities for 1a-f, ranging from 0.69 to 2.5 nM. The benzothiazole 1f showed high OX1R affinity (Ki = 0.69 nM), along with 77-fold subtype selectivity over OX2R. Cu-mediated 18F-fluorination of boroxine precursors allowed for a shortened reaction time of 5 min to provide the non-selective OXR ligand [18F]1c and its selective OX1R congener [18F]1f in activity yields of 14% and 22%, respectively, within a total synthesis time of 52-76 min. [18F]1c and [18F]1f were stable in plasma and serum in vitro, with logD7.4 of 2.28 ([18F]1c) and 2.37 ([18F]1f), and high plasma protein binding of 66% and 77%, respectively. Dynamic PET imaging in rats showed similar brain uptake of [18F]1c (0.17%ID/g) and [18F]1f (0.15%ID/g). However, preinjection of suvorexant did not significantly block [18F]1c or [18F]1f uptake in the rat brain. Pretreatment with cyclosporine A to study the role of P-glycoprotein (P-gp) in limiting brain accumulation moderately increased brain uptake of [18F]1c and [18F]1f. Accordingly, in vitro experiments demonstrated that the P-gp inhibitor zosuquidar only moderately inhibited polarized, basal to apical transport of 1c (p < 0.05) and had no effect on the transport of 1f, indicating that P-gp does not play a relevant role in brain accumulation of [18F]1c and [18F]1f in vivo. CONCLUSIONS The in vitro and in vivo results of [18F]1c and [18F]1f provide a solid basis for further development of suitable OXR PET ligands for brain imaging.
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Affiliation(s)
- Kim-Viktoria Bolik
- Department of Nuclear Medicine, Molecular Imaging and Radiochemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Kussmaulallee 10/12, 91054, Erlangen, Germany
| | - Jan Hellmann
- Department of Chemistry and Pharmacy, Medicinal Chemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Nikolaus-Fiebiger-Str. 10, 91058, Erlangen, Germany
| | - Simone Maschauer
- Department of Nuclear Medicine, Molecular Imaging and Radiochemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Kussmaulallee 10/12, 91054, Erlangen, Germany
| | - Eduard Neu
- Department of Chemistry and Pharmacy, Medicinal Chemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Nikolaus-Fiebiger-Str. 10, 91058, Erlangen, Germany
- FAU NeW - Research Center New Bioactive Compounds, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Nikolaus-Fiebiger-Str. 10, 91058, Erlangen, Germany
| | - Jürgen Einsiedel
- Department of Chemistry and Pharmacy, Medicinal Chemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Nikolaus-Fiebiger-Str. 10, 91058, Erlangen, Germany
| | - Patrick Riss
- Department of Chemistry, Johannes Gutenberg-Universität (JGU), Fritz Strassmann Weg 2, 55128, Mainz, Germany
| | - Nora Vogg
- Institute of Experimental and Clinical Pharmacology and Toxicology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Jörg König
- Institute of Experimental and Clinical Pharmacology and Toxicology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
- FAU NeW - Research Center New Bioactive Compounds, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Nikolaus-Fiebiger-Str. 10, 91058, Erlangen, Germany
| | - Martin F Fromm
- Institute of Experimental and Clinical Pharmacology and Toxicology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
- FAU NeW - Research Center New Bioactive Compounds, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Nikolaus-Fiebiger-Str. 10, 91058, Erlangen, Germany
| | - Harald Hübner
- Department of Chemistry and Pharmacy, Medicinal Chemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Nikolaus-Fiebiger-Str. 10, 91058, Erlangen, Germany
| | - Peter Gmeiner
- Department of Chemistry and Pharmacy, Medicinal Chemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Nikolaus-Fiebiger-Str. 10, 91058, Erlangen, Germany
- FAU NeW - Research Center New Bioactive Compounds, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Nikolaus-Fiebiger-Str. 10, 91058, Erlangen, Germany
| | - Olaf Prante
- Department of Nuclear Medicine, Molecular Imaging and Radiochemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Kussmaulallee 10/12, 91054, Erlangen, Germany.
- FAU NeW - Research Center New Bioactive Compounds, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Nikolaus-Fiebiger-Str. 10, 91058, Erlangen, Germany.
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2
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González-Sáenz P, Cosialls R, Texidó R, Dols-Pérez A, Cuenca AB, Borrós S, Fornaguera C. Designing Polyelectrolyte Microneedles Based on Borylated Poly(β-aminoester) Polymers To Enhance Transdermal pH-Controlled Delivery of Nucleic Acids. ACS APPLIED POLYMER MATERIALS 2024; 6:8842-8855. [PMID: 39144279 PMCID: PMC11320383 DOI: 10.1021/acsapm.4c00969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 06/26/2024] [Accepted: 06/26/2024] [Indexed: 08/16/2024]
Abstract
The use of transdermal delivery for nucleic acid administration is an interesting approach to overcoming limitations of systemic administration routes, such as first-pass effects, the painful needle injection, or their poor biodistribution. Thus, the use of a microneedle-based patch could represent a turning point for nucleic acid delivery, thanks to the possibility of self-administration of the actives in a painless and easy procedure. However, the design of transdermal systems with a higher degree of precision release is a clear need that has not been fully resolved. Committed to tackling this challenge, we present here a microneedle patch that involves a smart delivery system supported by the well-established ability of boronic acid to interact with carbohydrates in a pH-dependent manner. This system builds up a multilayer structure over a solid microneedle platform whose surface has been modified to immobilize glucosamine units that are able to interact with an oligopeptide-end terminated poly(β-aminoester) that presents a 4-carboxy-3-fluorophenylboronic acid (Bor-pBAE). Thus, sequential layers of the Bor-pBAE and plasmid DNA have been assembled, thanks to the ability of the polymer to interact with the nucleic acid at a basic pH and then gradually release the plasmid under two different conditions of pH (the physiological pH = 7.4 and the acidic pH = 5.1). We set up the design and implementation of this first proof of concept while demonstrating microneedles' safety and functionality. Additionally, we have shown the efficacy of the construct to express the encoded genes in model cell lines. In conclusion, we have established the basis to confirm that this generation of borylated poly(β-aminoesters) holds great promise as a transdermal local nucleic acid delivery system.
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Affiliation(s)
- Patricia González-Sáenz
- Grup
d’Enginyeria de Materials (GEMAT, Insititut Químic de
Sarrià (IQS), Universitat Ramon Llull
(URL), Via Augusta 390, 08017 Barcelona, Spain
| | - Raúl Cosialls
- BISI-Bonds/CRISOL
Group, Department of Organic and Pharmaceutical Chemistry, Insititut
Químic de Sarrià (IQS), Universitat
Ramon Llull (URL), Via Augusta 390, 08017 Barcelona, Spain
| | - Robert Texidó
- Grup
d’Enginyeria de Materials (GEMAT, Insititut Químic de
Sarrià (IQS), Universitat Ramon Llull
(URL), Via Augusta 390, 08017 Barcelona, Spain
| | - Aurora Dols-Pérez
- Institut
de Bioenginyeria de Cataluña (IBEC), The Barcelona Institute of Science and Technology (BIST), C/Baldiri I Reixac 11-15, 08028 Barcelona, Spain
| | - Ana Belén Cuenca
- BISI-Bonds/CRISOL
Group, Department of Organic and Pharmaceutical Chemistry, Insititut
Químic de Sarrià (IQS), Universitat
Ramon Llull (URL), Via Augusta 390, 08017 Barcelona, Spain
| | - Salvador Borrós
- Grup
d’Enginyeria de Materials (GEMAT, Insititut Químic de
Sarrià (IQS), Universitat Ramon Llull
(URL), Via Augusta 390, 08017 Barcelona, Spain
| | - Cristina Fornaguera
- Grup
d’Enginyeria de Materials (GEMAT, Insititut Químic de
Sarrià (IQS), Universitat Ramon Llull
(URL), Via Augusta 390, 08017 Barcelona, Spain
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3
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Zhao X, Li W, Zhou L, Zhao X, Zhang Y, Li B, Li R, Zhu L. Cu(II)-Catalyzed Hydroboration Reactions of 1,1-Disubstituted α,β-Unsaturated Ketones, Esters, and Amides in Pure Water. J Org Chem 2024; 89:8334-8341. [PMID: 38860473 DOI: 10.1021/acs.joc.3c02942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2024]
Abstract
Here, a Cu2(OH)2CO3-catalyzed hydroboration reaction of 1,1-disubstituted α,β-unsaturated compounds has been developed. The reaction was carried out using water as a solvent at room temperature except for N-monosubstituted α,β-unsaturated amides. This method is applicable to diverse 1,1-disubstituted α,β-unsaturated ketones, esters, and amides, showing excellent reactivity (up to 98% yield). Gram-scale experiments and functional group transformations further demonstrated the practicality of this method.
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Affiliation(s)
- Xue Zhao
- School of Chemistry and Materials Science, Hubei Key Laboratory of Quality Control of Characteristic Fruits and Vegetables, Hubei Engineering University, Xiaogan 432000, China
| | - Weishuang Li
- School of Chemistry and Materials Science, Hubei Key Laboratory of Quality Control of Characteristic Fruits and Vegetables, Hubei Engineering University, Xiaogan 432000, China
| | - Lijie Zhou
- School of Chemistry and Materials Science, Hubei Key Laboratory of Quality Control of Characteristic Fruits and Vegetables, Hubei Engineering University, Xiaogan 432000, China
| | - Xuhong Zhao
- School of Chemistry and Materials Science, Hubei Key Laboratory of Quality Control of Characteristic Fruits and Vegetables, Hubei Engineering University, Xiaogan 432000, China
- Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, School of Materials Science & Engineering, Hubei University, Wuhan 430062, China
| | - Yaoyao Zhang
- School of Chemistry and Materials Science, Hubei Key Laboratory of Quality Control of Characteristic Fruits and Vegetables, Hubei Engineering University, Xiaogan 432000, China
| | - Bojie Li
- School of Chemistry and Materials Science, Hubei Key Laboratory of Quality Control of Characteristic Fruits and Vegetables, Hubei Engineering University, Xiaogan 432000, China
| | - Rong Li
- Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, School of Materials Science & Engineering, Hubei University, Wuhan 430062, China
| | - Lei Zhu
- School of Chemistry and Materials Science, Hubei Key Laboratory of Quality Control of Characteristic Fruits and Vegetables, Hubei Engineering University, Xiaogan 432000, China
- Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, School of Materials Science & Engineering, Hubei University, Wuhan 430062, China
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4
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Allison M, Davie RL, Mogg AJ, Hampton SL, Emsley J, Stocks MJ. Discovery of α-Amidobenzylboronates as Highly Potent Covalent Inhibitors of Plasma Kallikrein. ACS Med Chem Lett 2024; 15:501-509. [PMID: 38628785 PMCID: PMC11017388 DOI: 10.1021/acsmedchemlett.3c00572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 03/25/2024] [Accepted: 03/26/2024] [Indexed: 04/19/2024] Open
Abstract
Hereditary angioedema (HAE), a rare genetic disorder, is associated with uncontrolled plasma kallikrein (PKa) enzyme activity leading to the generation of bradykinin swelling in subcutaneous and submucosal membranes in various locations of the body. Herein, we describe a series of potent α-amidobenzylboronates as potential covalent inhibitors of PKa. These compounds exhibited time-dependent inhibition of PKa (compound 20 IC50 66 nM at 1 min, 70 pM at 24 h). Further compound dissociation studies demonstrated that 20 showed no apparent reversibility comparable to d-Phe-Pro-Arg-chloromethylketone (PPACK) (23), a known nonselective covalent PKa inhibitor.
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Affiliation(s)
- Matthew Allison
- Biodiscovery
Institute, School of Pharmacy, University
of Nottingham, Nottingham, NG7 2RD, United
Kingdom
| | - Rebecca L. Davie
- KalVista
Pharmaceuticals Limited, Salisbury, SP4 0BF, United
Kingdom
| | - Adrian J. Mogg
- KalVista
Pharmaceuticals Limited, Salisbury, SP4 0BF, United
Kingdom
| | - Sally L. Hampton
- KalVista
Pharmaceuticals Limited, Salisbury, SP4 0BF, United
Kingdom
| | - Jonas Emsley
- Biodiscovery
Institute, School of Pharmacy, University
of Nottingham, Nottingham, NG7 2RD, United
Kingdom
| | - Michael J. Stocks
- Biodiscovery
Institute, School of Pharmacy, University
of Nottingham, Nottingham, NG7 2RD, United
Kingdom
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5
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Xie R, Li W, Ge Y, Zhou Y, Xiao G, Zhao Q, Han Y, Li Y, Chen G. Late-stage guanine C8-H alkylation of nucleosides, nucleotides, and oligonucleotides via photo-mediated Minisci reaction. Nat Commun 2024; 15:2549. [PMID: 38514662 PMCID: PMC10957873 DOI: 10.1038/s41467-024-46671-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 02/26/2024] [Indexed: 03/23/2024] Open
Abstract
Chemically modified nucleosi(ti)des and functional oligonucleotides (ONs, including therapeutic oligonucleotides, aptamer, nuclease, etc.) have been identified playing an essential role in the areas of medicinal chemistry, chemical biology, biotechnology, and nanotechnology. Introduction of functional groups into the nucleobases of ONs mostly relies on the laborious de novo chemical synthesis. Due to the importance of nucleosides modification and aforementioned limitations of functionalizing ONs, herein, we describe a highly efficient site-selective alkylation at the C8-position of guanines in guanosine (together with its analogues), GMP, GDP, and GTP, as well as late-stage functionalization of dinucleotides and single-strand ONs (including ssDNA and RNA) through photo-mediated Minisci reaction. Addition of catechol to assist the formation of alkyl radicals via in situ generated boronic acid catechol ester derivatives (BACED) markedly enhances the yields especially for the reaction of less stable primary alkyl radicals, and is the key to success for the post-synthetic alkylation of ONs. This method features excellent chemoselectivity, no necessity for pre-protection, wide range of substrate scope, various free radical precursors, and little strand lesion. Downstream applications in disease treatment and diagnosis, or as biochemical probes to study biological processes after linking with suitable fluorescent compounds are expected.
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Affiliation(s)
- Ruoqian Xie
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, People's Republic of China
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
| | - Wanlu Li
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, People's Republic of China
| | - Yuhua Ge
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, People's Republic of China.
| | - Yutong Zhou
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
- Key Laboratory of Green and High-End Utilization of Salt Lake Resources, Chinese Academy of Sciences, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining, 810008, Qinghai, People's Republic of China
| | - Guolan Xiao
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
| | - Qin Zhao
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
| | - Yunxi Han
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
| | - Yangyan Li
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
| | - Gang Chen
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China.
- Key Laboratory of Green and High-End Utilization of Salt Lake Resources, Chinese Academy of Sciences, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining, 810008, Qinghai, People's Republic of China.
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6
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Lyu MY, Morais GN, Chen S, Brown MK. Ni-Catalyzed 1,1- and 1,3-Aminoboration of Unactivated Alkenes. J Am Chem Soc 2023; 145:27254-27261. [PMID: 38078874 PMCID: PMC11078560 DOI: 10.1021/jacs.3c12770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
Alkene borylfunctionalization reactions have emerged as useful methods for chemical synthesis. While much progress has been made on 1,2-borylamination reactions, the related 1,1- and 1,3-borylaminations have not been reported. Herein, a Ni-catalyzed 1,1-borylamination of 1,1-disubstituted and monosubstituted alkenes and a 1,3-borylamination of cyclic alkenes are presented. Key to development of these reactions was the identification of an alkyllithium activator in combination with Mg salts. The utility of the products and the mechanistic details are discussed.
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Affiliation(s)
- Mao-Yun Lyu
- Department of Chemistry, Indiana University, 800 E. Kirkwood Ave, Bloomington, Indiana 47405, United States
| | - Gabriel N Morais
- Department of Chemistry and Biochemistry, Oberlin College, 119 Woodland St, Oberlin, Ohio 44074, United States
| | - Shuming Chen
- Department of Chemistry and Biochemistry, Oberlin College, 119 Woodland St, Oberlin, Ohio 44074, United States
| | - M Kevin Brown
- Department of Chemistry, Indiana University, 800 E. Kirkwood Ave, Bloomington, Indiana 47405, United States
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7
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Hong Y, Weng Y, Wu Q, Qi LY, Fan LJ. Conjugated Polyelectrolyte Containing a High Density of Pendant Phenylboronic Acid Groups for Dopamine Detection. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37931325 DOI: 10.1021/acsami.3c10513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
A fluorescent sensing system based on a conjugated polyelectrolyte was constructed to detect dopamine (DA) in complex samples. The conjugated polymer PFPE-PBA with poly[fluorenyl-alt-p-phenyleneethynylene] (PFPE) as the backbone and carrying four pendant phenylboronic acid (PBA) groups in each repeat unit was synthesized. PFPE-PBA was found to have good solubility in polar solvents. After optimization, glycine-NaOH at pH 10 was selected as the buffer, and the solvent composition of the system was set to methanol/water (9/1 by volume). Titration experiments showed that DA could effectively quench the fluorescence of the polymer solution with a response time within 60 s and a limit of detection of 23 nM. Polyols, cations, and other possible interfering substances do not significantly affect the fluorescence of the polymer, thereby allowing for the highly selective detection of DA. Furthermore, quantitative determination of DA in spiked serum and artificial urine samples was successfully demonstrated, with recoveries ranging from 96.7 to 104%. Preliminary mechanism studies suggest that the pedant PBAs capture DA via reaction with the catechol group, and the fluorescence quenching is most likely due to the photoinduced electron transfer between the aromatic part of DA and the conjugated backbone. This study provides a general strategy for the future design of conjugated polyelectrolyte-based sensing systems.
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Affiliation(s)
- Ying Hong
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P.R. China
| | - Yuchen Weng
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P.R. China
| | - Qin Wu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P.R. China
| | - Lu-Yue Qi
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Soochow University, Suzhou 215004, P.R. China
| | - Li-Juan Fan
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P.R. China
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8
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Kazmi MZH, Schneider OM, Hall DG. Expanding the Role of Boron in New Drug Chemotypes: Properties, Chemistry, Pharmaceutical Potential of Hemiboronic Naphthoids. J Med Chem 2023; 66:13768-13787. [PMID: 37752013 DOI: 10.1021/acs.jmedchem.3c01194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Abstract
New chemotypes and bioisosteres can open a new chemical space in drug discovery and help meet an urgent demand for novel agents to fight infections and other diseases. With the aim of identifying new boron-containing drug chemotypes, this article details a comprehensive evaluation of the pseudoaromatic hemiboronic naphthoids, benzoxaza- and benzodiazaborines. Relevant physical properties in aqueous media (acidity, solubility, log P, and stability) of prototypic members of four subclasses were determined. Both scaffolds are amenable to common reactions used in drug discovery, such as chemoselective Suzuki-Miyaura, Chan-Lam, and amidation reactions. Small model libraries were prepared to assess the scope of these transformations, and the entire collection was screened for antifungal (Candida albicans) and antibacterial activity (MRSA, Escherichia coli), unveiling promising benzoxazaborines with low micromolar minimum inhibitory concentration values. Select DMPK assays of representative compounds suggest promising drug-like behavior for all four subclasses. Moreover, several drug isosteres were evaluated for anti-inflammatory and anticancer activity as appropriate.
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Affiliation(s)
- M Zain H Kazmi
- Department of Chemistry, Centennial Center for Interdisciplinary Science, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Olivia M Schneider
- Department of Chemistry, Centennial Center for Interdisciplinary Science, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Dennis G Hall
- Department of Chemistry, Centennial Center for Interdisciplinary Science, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
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9
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Vidal F, Smith S, Williams CK. Ring Opening Copolymerization of Boron-Containing Anhydride with Epoxides as a Controlled Platform to Functional Polyesters. J Am Chem Soc 2023. [PMID: 37311063 DOI: 10.1021/jacs.3c03261] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Boron-functionalized polymers are used in opto-electronics, biology, and medicine. Methods to produce boron-functionalized and degradable polyesters remain exceedingly rare but relevant where (bio)dissipation is required, for example, in self-assembled nanostructures, dynamic polymer networks, and bio-imaging. Here, a boronic ester-phthalic anhydride and various epoxides (cyclohexene oxide, vinyl-cyclohexene oxide, propene oxide, allyl glycidyl ether) undergo controlled ring-opening copolymerization (ROCOP), catalyzed by organometallic complexes [Zn(II)Mg(II) or Al(III)K(I)] or a phosphazene organobase. The polymerizations are well controlled allowing for the modulation of the polyester structures (e.g., by epoxide selection, AB, or ABA blocks), molar masses (9.4 < Mn < 40 kg/mol), and uptake of boron functionalities (esters, acids, "ates", boroxines, and fluorescent groups) in the polymer. The boronic ester-functionalized polymers are amorphous, with high glass transition temperatures (81 < Tg < 224 °C) and good thermal stability (285 < Td < 322 °C). The boronic ester-polyesters are deprotected to yield boronic acid- and borate-polyesters; the ionic polymers are water soluble and degradable under alkaline conditions. Using a hydrophilic macro-initiator in alternating epoxide/anhydride ROCOP, and lactone ring opening polymerization, produces amphiphilic AB and ABC copolyesters. Alternatively, the boron-functionalities are subjected to Pd(II)-catalyzed cross-couplings to install fluorescent groups (BODIPY). The utility of this new monomer as a platform to construct specialized polyesters materials is exemplified here in the synthesis of fluorescent spherical nanoparticles that self-assemble in water (Dh = 40 nm). The selective copolymerization, variable structural composition, and adjustable boron loading represent a versatile technology for future explorations of degradable, well-defined, and functional polymers.
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Affiliation(s)
- Fernando Vidal
- Department of Chemistry, Chemical Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, U.K
| | - Sevven Smith
- Department of Chemistry, Chemical Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, U.K
| | - Charlotte K Williams
- Department of Chemistry, Chemical Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, U.K
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10
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Yu IF, Manske JL, Diéguez-Vázquez A, Misale A, Pashenko AE, Mykhailiuk PK, Ryabukhin SV, Volochnyuk DM, Hartwig JF. Catalytic undirected borylation of tertiary C-H bonds in bicyclo[1.1.1]pentanes and bicyclo[2.1.1]hexanes. Nat Chem 2023; 15:685-693. [PMID: 36973434 PMCID: PMC10684141 DOI: 10.1038/s41557-023-01159-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 02/14/2023] [Indexed: 03/29/2023]
Abstract
Catalytic borylations of sp3 C-H bonds occur with high selectivities for primary C-H bonds or secondary C-H bonds that are activated by nearby electron-withdrawing substituents. Catalytic borylation at tertiary C-H bonds has not been observed. Here we describe a broadly applicable method for the synthesis of boron-substituted bicyclo[1.1.1]pentanes and (hetero)bicyclo[2.1.1]hexanes by an iridium-catalysed borylation of the bridgehead tertiary C-H bond. This reaction is highly selective for the formation of bridgehead boronic esters and is compatible with a broad range of functional groups (>35 examples). The method is applicable to the late-stage modification of pharmaceuticals containing this substructure and the synthesis of novel bicyclic building blocks. Kinetic and computational studies suggest that C-H bond cleavage occurs with a modest barrier and that the turnover-limiting step of this reaction is an isomerization that occurs prior to reductive elimination that forms the C-B bond.
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Affiliation(s)
- Isaac F Yu
- Department of Chemistry, University of California, Berkeley, CA, USA
| | - Jenna L Manske
- Department of Chemistry, University of California, Berkeley, CA, USA
| | | | | | - Alexander E Pashenko
- The Institute of High Technologies, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
- Enamine Ltd, Kyiv, Ukraine
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Pavel K Mykhailiuk
- The Institute of High Technologies, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
- Enamine Ltd, Kyiv, Ukraine
| | - Sergey V Ryabukhin
- The Institute of High Technologies, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
- Enamine Ltd, Kyiv, Ukraine
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Dmitriy M Volochnyuk
- The Institute of High Technologies, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine.
- Enamine Ltd, Kyiv, Ukraine.
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine.
| | - John F Hartwig
- Department of Chemistry, University of California, Berkeley, CA, USA.
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11
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Computational Design, Synthesis, and Biophysical Evaluation of β-Amido Boronic Acids as SARS-CoV-2 M pro Inhibitors. Molecules 2023; 28:molecules28052356. [PMID: 36903597 PMCID: PMC10005264 DOI: 10.3390/molecules28052356] [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: 01/31/2023] [Revised: 02/16/2023] [Accepted: 03/01/2023] [Indexed: 03/08/2023] Open
Abstract
The COVID-19 pandemic has given a strong impetus to the search for antivirals active on SARS-associated coronaviruses. Over these years, numerous vaccines have been developed and many of these are effective and clinically available. Similarly, small molecules and monoclonal antibodies have also been approved by the FDA and EMA for the treatment of SARS-CoV-2 infection in patients who could develop the severe form of COVID-19. Among the available therapeutic tools, the small molecule nirmatrelvir was approved in 2021. It is a drug capable of binding to the Mpro protease, an enzyme encoded by the viral genome and essential for viral intracellular replication. In this work, by virtual screening of a focused library of β-amido boronic acids, we have designed and synthesized a focused library of compounds. All of them were biophysically tested by microscale thermophoresis, attaining encouraging results. Moreover, they also displayed Mpro protease inhibitory activity, as demonstrated by performing enzymatic assays. We are confident that this study will pave the way for the design of new drugs potentially useful for the treatment of SARS-CoV-2 viral infection.
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12
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Synthesis of Novel Multifunctional bora-Ibuprofen Derivatives. INORGANICS 2023. [DOI: 10.3390/inorganics11020070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
A unique class of β-boron-functionalized non-steroidal anti-inflammatory compound (pinB-NSAID) was previously synthesized via copper-catalyzed 1,2-difunctionalization of the respective vinyl arene with CO2 and B2pin2 reagents. Here, pinacolylboron-functionalized ibuprofen (pinB-ibuprofen) was used as a model substrate to develop the conditions for pinacol deprotection and subsequent boron functionalization. Initial pinacol-boronic ester deprotection was achieved by transesterification with diethanolamine (DEA) from the boralactonate organic salt. The resulting DEA boronate adopts a spirocyclic boralactonate structure rather than a diazaborocane–DABO boronate structure. The subsequent acid-mediated hydrolysis of DEA and transesterification/transamination provided a diverse scope of new boron-containing ibuprofen derivatives.
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13
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Hoffmann C, Kolks N, Smets D, Haseloer A, Gröner B, Urusova EA, Endepols H, Neumaier F, Ruschewitz U, Klein A, Neumaier B, Zlatopolskiy BD. Next Generation Copper Mediators for the Efficient Production of 18 F-Labeled Aromatics. Chemistry 2023; 29:e202202965. [PMID: 36214204 PMCID: PMC10100267 DOI: 10.1002/chem.202202965] [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: 09/22/2022] [Indexed: 11/07/2022]
Abstract
Cu-mediated radiofluorination is a versatile tool for the preparation of 18 F-labeled (hetero)aromatics. In this work, we systematically evaluated a series of complexes and identified several generally applicable mediators for highly efficient radiofluorination of aryl boronic and stannyl substrates. Utilization of these mediators in nBuOH/DMI or DMI significantly improved 18 F-labeling yields despite use of lower precursor amounts. Impressively, application of 2.5 μmol aryl boronic acids was sufficient to achieve 18 F-labeling yields of up to 75 %. The practicality of the novel mediators was demonstrated by efficient production of five PET-tracers and transfer of the method to an automated radiosynthesis module. In addition, (S)-3-[18 F]FPhe and 6-[18 F]FDOPA were prepared in activity yields of 23±1 % and 30±3 % using only 2.5 μmol of the corresponding boronic acid or trimethylstannyl precursor.
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Affiliation(s)
- Chris Hoffmann
- Faculty of Medicine and University Hospital Cologne, Institute of Radiochemistry and Experimental Molecular Imaging, University of Cologne, Kerpener Straße 62, 50937, Cologne, Germany.,Institute of Neuroscience and Medicine, Nuclear Chemistry (INM-5), Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Straße, 52428, Jülich, Germany
| | - Niklas Kolks
- Faculty of Medicine and University Hospital Cologne, Institute of Radiochemistry and Experimental Molecular Imaging, University of Cologne, Kerpener Straße 62, 50937, Cologne, Germany.,Institute of Neuroscience and Medicine, Nuclear Chemistry (INM-5), Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Straße, 52428, Jülich, Germany
| | - Daniel Smets
- Faculty of Mathematics and Natural Sciences, Department of Chemistry, Institute of Inorganic Chemistry, University of Cologne, Greinstr. 6, 50939, Cologne, Germany
| | - Alexander Haseloer
- Faculty of Mathematics and Natural Sciences, Department of Chemistry, Institute of Inorganic Chemistry, University of Cologne, Greinstr. 6, 50939, Cologne, Germany
| | - Benedikt Gröner
- Faculty of Medicine and University Hospital Cologne, Institute of Radiochemistry and Experimental Molecular Imaging, University of Cologne, Kerpener Straße 62, 50937, Cologne, Germany.,Institute of Neuroscience and Medicine, Nuclear Chemistry (INM-5), Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Straße, 52428, Jülich, Germany
| | - Elizaveta A Urusova
- Faculty of Medicine and University Hospital Cologne, Institute of Radiochemistry and Experimental Molecular Imaging, University of Cologne, Kerpener Straße 62, 50937, Cologne, Germany.,Institute of Neuroscience and Medicine, Nuclear Chemistry (INM-5), Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Straße, 52428, Jülich, Germany
| | - Heike Endepols
- Faculty of Medicine and University Hospital Cologne, Institute of Radiochemistry and Experimental Molecular Imaging, University of Cologne, Kerpener Straße 62, 50937, Cologne, Germany.,Institute of Neuroscience and Medicine, Nuclear Chemistry (INM-5), Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Straße, 52428, Jülich, Germany.,Faculty of Medicine and University Hospital Cologne, Department of Nuclear Medicine, University of Cologne, Kerpener Straße 62, 50937, Cologne, Germany
| | - Felix Neumaier
- Faculty of Medicine and University Hospital Cologne, Institute of Radiochemistry and Experimental Molecular Imaging, University of Cologne, Kerpener Straße 62, 50937, Cologne, Germany.,Institute of Neuroscience and Medicine, Nuclear Chemistry (INM-5), Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Straße, 52428, Jülich, Germany
| | - Uwe Ruschewitz
- Faculty of Mathematics and Natural Sciences, Department of Chemistry, Institute of Inorganic Chemistry, University of Cologne, Greinstr. 6, 50939, Cologne, Germany
| | - Axel Klein
- Faculty of Mathematics and Natural Sciences, Department of Chemistry, Institute of Inorganic Chemistry, University of Cologne, Greinstr. 6, 50939, Cologne, Germany
| | - Bernd Neumaier
- Faculty of Medicine and University Hospital Cologne, Institute of Radiochemistry and Experimental Molecular Imaging, University of Cologne, Kerpener Straße 62, 50937, Cologne, Germany.,Institute of Neuroscience and Medicine, Nuclear Chemistry (INM-5), Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Straße, 52428, Jülich, Germany
| | - Boris D Zlatopolskiy
- Faculty of Medicine and University Hospital Cologne, Institute of Radiochemistry and Experimental Molecular Imaging, University of Cologne, Kerpener Straße 62, 50937, Cologne, Germany.,Institute of Neuroscience and Medicine, Nuclear Chemistry (INM-5), Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Straße, 52428, Jülich, Germany
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14
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Jiang L, Liu Y, Zheng K, Zhang Q, Yu Z, Xian M, Xu C. The novel boric acid modified material as micro separation plant for 1,3-BDO: Adsorption behavior and mechanism. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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15
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Jin L, Zhu Z, Hong L, Qian Z, Wang F, Mao Z. ROS-responsive 18β-glycyrrhetic acid-conjugated polymeric nanoparticles mediate neuroprotection in ischemic stroke through HMGB1 inhibition and microglia polarization regulation. Bioact Mater 2023; 19:38-49. [PMID: 35415314 PMCID: PMC8980441 DOI: 10.1016/j.bioactmat.2022.03.040] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 03/26/2022] [Accepted: 03/26/2022] [Indexed: 01/01/2023] Open
Abstract
Ischemic stroke is an acute and serious cerebral vascular disease, which greatly affects people's health and brings huge economic burden to society. Microglia, as important innate immune components in central nervous system (CNS), are double-edged swords in the battle of nerve injury, considering their polarization between pro-inflammatory M1 or anti-inflammatory M2 phenotypes. High mobility group box 1 (HMGB1) is one of the potent pro-inflammatory mediators that promotes the M1 polarization of microglia. 18β-glycyrrhetinic acid (GA) is an effective intracellular inhibitor of HMGB1, but of poor water solubility and dose-dependent toxicity. To overcome the shortcomings of GA delivery and to improve the efficacy of cerebral ischemia therapy, herein, we designed reactive oxygen species (ROS) responsive polymer-drug conjugate nanoparticles (DGA) to manipulate microglia polarization by suppressing the translocation of nuclear HMGB1. DGA presented excellent therapeutic efficacy in stroke mice, as evidenced by the reduction of infarct volume, recovery of motor function, suppressed of M1 microglia activation and enhanced M2 activation, and induction of neurogenesis. Altogether, our work demonstrates a close association between HMGB1 and microglia polarization, suggesting potential strategies for coping with inflammatory microglia-related diseases. We synthesized GA-boronate ester-conjugated diethylaminoethylen-dextran polymer-drug conjugate nanoparticles. The DGA nanoparticles achieve ROS-responsive drug release. The DGA nanoparticles inhibit cytoplasmic translocation of nuclear HMGB1, thus modulate microglia to M2 phenotype. The DGA nanoparticles effectively alleviate the pathology of stroke, reduce infarct volume, and enhance neurogenesis.
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Affiliation(s)
- Lulu Jin
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Zhixin Zhu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Liangjie Hong
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Zhefeng Qian
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Fang Wang
- The MOE Frontier Science Center for Brain Research and Brain-Machine Integration, Zhejiang University School of Brain Science and Brain Medicine, Hangzhou, 310058, China
| | - Zhengwei Mao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
- Corresponding author.
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16
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Zeng Z, Zhu J, Deng X, Chen H, Jin Y, Miclet E, Alezra V, Wan Y. Customized Reversible Stapling for Selective Delivery of Bioactive Peptides. J Am Chem Soc 2022; 144:23614-23621. [PMID: 36530144 DOI: 10.1021/jacs.2c10949] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
We have developed a new concept for reversible peptide stapling that involves macrocyclization between two amino groups and decyclization promoted via dual 1,4-elimination. Depending on the trigger moiety, this strategy could be employed to selectively deliver peptides to either intracellular or extracellular targets. As a proof of concept, a peptide inhibitor targeting a lysine-specific demethylase 1 (LSD1) was temporarily cyclized to enhance its stability and ability to cross the cell membrane. Once inside the cells, the biologically active linear peptide was released under reducing environment. Moreover, we have developed reversibly stapled peptides using antimicrobial peptides (RStAMPs) whose bioactive helical conformation can be temporarily destabilized by stapling the peptide backbone. The resulting helix-distorted RStAMPs are nontoxic and highly resistant to protease hydrolysis, while at the infection site, RStAMPs can be rapidly activated by the overproduced H2O2 through the dual 1,4-elimination. The latter restored the helical structure of the native peptide and its antimicrobial activity. This work illustrates a highly valuable macrocyclization strategy for the peptide community and should greatly benefit the field of peptide delivery.
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Affiliation(s)
- Zizhen Zeng
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Chinese Medicine, Nanchang 330006, P. R. China
| | - Jibao Zhu
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Chinese Medicine, Nanchang 330006, P. R. China
| | - Xiaoyu Deng
- Minist Educ, Key Lab Modern Preparat TCM, Jiangxi University of Chinese Medicine, Nanchang 330006, P. R. China
| | - Huanwen Chen
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Chinese Medicine, Nanchang 330006, P. R. China
| | - Yi Jin
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Chinese Medicine, Nanchang 330006, P. R. China
| | - Emeric Miclet
- Sorbonne Université, Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, 4 Place Jussieu, Cedex 05, Paris 75252, France
| | - Valérie Alezra
- Laboratoire de Méthodologie, Synthèse et Molécules Thérapeutiques, ICMMO, Université Paris-Saclay, Paris 91400, Orsay, France
| | - Yang Wan
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Chinese Medicine, Nanchang 330006, P. R. China
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17
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Rangaswamy AMM, Beh MHR, Soleimani E, Sequeira S, Cormier J, Robertson KN, Jakeman DL. Synthesis of 5'-Thymidine-Conjugated Formylphenylboronic Acids as Potential Lysine Targeting Iminoboronate Reversible Covalent Enzyme Probes. J Org Chem 2022; 87:13542-13555. [PMID: 36265169 DOI: 10.1021/acs.joc.2c01000] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The design of reversible-covalent molecules to selectively target the ε-amino functionality of lysine residues in enzymes or proteins is a highly desirable goal. Herein, we describe synthetic methodology used to prepare a series of 5'-thymidine-linked formylphenylboronic acids as probes to interrogate sugar nucleotide processing enzymes that recognize thymidine. The first synthetic strategy mitigated the need for protecting group manipulations of thymidine by capitalizing upon the straightforward preparation, isolation, and reactivity of 5'-azidothymidine. An alkyne cycloaddition partner was installed through either a propargyl or ethynyl phenyl ketone derived boronic acid. The second strategy directly linked formylphenylboronic acids to 5-thymidine through an ether linkage installed using Mitsunobu conditions with 3'-O,3-dibenzoylthymidine. Iminoboronate formation was observed with a selected probe.
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Affiliation(s)
| | | | - Ebrahim Soleimani
- Department of Chemistry, Razi University, Kermanshah, 67149-67346, Iran
| | | | | | - Katherine N Robertson
- Department of Chemistry, Saint Mary's University, 923 Robie Street, Halifax, Nova Scotia B3H 3C3, Canada
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18
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Hu C, Jia W, Liu Y, Wang Y, Zhang P, Chen H, Huang S. Single‐Molecule Sensing of Acidic Catecholamine Metabolites Using a Programmable Nanopore. Chemistry 2022; 28:e202201033. [DOI: 10.1002/chem.202201033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Indexed: 11/05/2022]
Affiliation(s)
- Chengzhen Hu
- State Key Laboratory of Analytical Chemistry for Life Sciences School of Chemistry and Chemical Engineering Nanjing University 210023 Nanjing China
- Chemistry and Biomedicine Innovation Center (ChemBIC) Nanjing University 210023 Nanjing China
| | - Wendong Jia
- State Key Laboratory of Analytical Chemistry for Life Sciences School of Chemistry and Chemical Engineering Nanjing University 210023 Nanjing China
- Chemistry and Biomedicine Innovation Center (ChemBIC) Nanjing University 210023 Nanjing China
| | - Yao Liu
- State Key Laboratory of Analytical Chemistry for Life Sciences School of Chemistry and Chemical Engineering Nanjing University 210023 Nanjing China
- Chemistry and Biomedicine Innovation Center (ChemBIC) Nanjing University 210023 Nanjing China
| | - Yuqin Wang
- State Key Laboratory of Analytical Chemistry for Life Sciences School of Chemistry and Chemical Engineering Nanjing University 210023 Nanjing China
- Chemistry and Biomedicine Innovation Center (ChemBIC) Nanjing University 210023 Nanjing China
| | - Panke Zhang
- State Key Laboratory of Analytical Chemistry for Life Sciences School of Chemistry and Chemical Engineering Nanjing University 210023 Nanjing China
| | - Hong‐Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Sciences School of Chemistry and Chemical Engineering Nanjing University 210023 Nanjing China
| | - Shuo Huang
- State Key Laboratory of Analytical Chemistry for Life Sciences School of Chemistry and Chemical Engineering Nanjing University 210023 Nanjing China
- Chemistry and Biomedicine Innovation Center (ChemBIC) Nanjing University 210023 Nanjing China
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19
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Ren J, Wu M, Dong K, Zhang M, Cheng Y, Shi G. Highly efficient synthesis and application of aryl diazonium salts via femtosecond laser-tailored 3D flow microfluidic chips. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.07.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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20
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Photopharmacological modulation of native CRAC channels using azoboronate photoswitches. Proc Natl Acad Sci U S A 2022; 119:e2118160119. [PMID: 35312368 PMCID: PMC9060504 DOI: 10.1073/pnas.2118160119] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Calcium release–activated calcium (CRAC) channels play key roles in the regulation of cellular signaling, transcription, and migration. Here, we describe the design, chemical synthesis, and characterization of photoswitchable channel inhibitors that can be switched on and off depending on the wavelength of light used. We use the compounds to induce light-dependent modulation of channel activity and downstream gene expression in human immune cells. We further expand the usage of the compounds to control seeding of cancer cells in target tissue and regulation of response to noxious stimuli in vivo in mice. Store-operated calcium entry through calcium release–activated calcium (CRAC) channels replenishes intracellular calcium stores and plays a critical role in cellular calcium signaling. CRAC channels are activated by tightly regulated interaction between the endoplasmic reticulum (ER) calcium sensor STIM proteins and plasma membrane (PM) Orai channels. Our current understanding of the role of STIM–Orai-dependent calcium signals under physiologically relevant conditions remains limited in part due to a lack of spatiotemporally precise methods for direct manipulation of endogenous CRAC channels. Here, we report the synthesis and characterization of azoboronate light-operated CRAC channel inhibitors (LOCIs) that allow for a dynamic and fully reversible remote modulation of the function of native CRAC channels using ultraviolet (UV) and visible light. We demonstrate the use of LOCI-1 to modulate gene expression in T lymphocytes, cancer cell seeding at metastatic sites, and pain-related behavior.
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21
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Šterman A, Sosič I, Časar Z. Primary trifluoroborate-iminiums enable facile access to chiral α-aminoboronic acids via Ru-catalyzed asymmetric hydrogenation and simple hydrolysis of the trifluoroborate moiety. Chem Sci 2022; 13:2946-2953. [PMID: 35432849 PMCID: PMC8905798 DOI: 10.1039/d1sc07065g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Accepted: 01/26/2022] [Indexed: 01/22/2023] Open
Abstract
This work describes the first preparation and application of primary trifluoroborate-iminiums (pTIMs) as a new, easily accessible and valuable class of organoboron derivatives. An array of structurally diverse pTIMs was prepared from potassium acyltrifluoroborates in excellent yields. Highly efficient and enantioselective [(R,R)-TethTsDpen-RuCl] complex-catalyzed hydrogenation of pTIMs provided direct access to chiral primary trifluoroborate-ammoniums (pTAMs). Moreover, facile synthesis of a series of structurally diverse chiral α-aminoboronic acids from chiral pTAMs was accomplished through novel, operationally simple and efficient conversion using hexamethyldisiloxane/aqueous HCl. Using no chromatography at any point, this work allowed easy access to chiral α-aminoboronic acids, as exemplified by the synthesis of optically pure anti-cancer drugs bortezomib and ixazomib.
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Affiliation(s)
- Andrej Šterman
- Faculty of Pharmacy, University of Ljubljana Aškerčeva cesta 7 SI-1000 Ljubljana Slovenia
| | - Izidor Sosič
- Faculty of Pharmacy, University of Ljubljana Aškerčeva cesta 7 SI-1000 Ljubljana Slovenia
| | - Zdenko Časar
- Faculty of Pharmacy, University of Ljubljana Aškerčeva cesta 7 SI-1000 Ljubljana Slovenia
- Lek Pharmaceuticals d.d., Sandoz Development Center Slovenia Verovškova ulica 57 SI-1526 Ljubljana Slovenia
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22
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Abstract
We have developed a turn-on photoluminescence protocol to detect hydrogen peroxide (H2O2) utilizing a supramolecular hydrogel as a sensing platform. Hydrogen peroxide is widely used in formulations, starting from healthcare products to explosives. It is also known to induce deleterious health effects at its irregular physiological concentration and considered as a biomarker in various disease conditions. We designed molecule 2, which releases the Tb3+ sensitizer biphenyl-4-carboxylic acid (1) upon unmasking by hydrogen peroxide. This chemistry led us to develop a sensitive photoluminescence assay for H2O2 through the 1-induced photoluminescence of terbium (Tb3+) in a hydrogel matrix. Paper discs (0.45 cm) were coated with the soft hydrogel to make the sensing process simple and cost-effective. The green luminescence from the paper discs, observed under a UV lamp, allowed naked-eye detection of H2O2 in the micromolar level without any sophisticated instrumentation. Image processing software or a plate reader can be used for the accurate quantification of the analyte in micromolar and nanomolar ranges. Several commercial hand sanitizers containing hydrogen peroxide were tested by this method. The results indicated that this low-cost system could be practically adopted, especially in resource-limited areas, to quantify/detect H2O2 for quality control purposes or other applications.
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Affiliation(s)
- Arnab Dutta
- Department of Organic Chemistry, Indian Institute of Science, Bengaluru, Karnataka 560012, India
| | - Uday Maitra
- Department of Organic Chemistry, Indian Institute of Science, Bengaluru, Karnataka 560012, India
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23
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Gatin-Fraudet B, Ottenwelter R, Le Saux T, Norsikian S, Pucher M, Lombès T, Baron A, Durand P, Doisneau G, Bourdreux Y, Iorga BI, Erard M, Jullien L, Guianvarc'h D, Urban D, Vauzeilles B. Evaluation of borinic acids as new, fast hydrogen peroxide-responsive triggers. Proc Natl Acad Sci U S A 2021; 118:e2107503118. [PMID: 34873034 PMCID: PMC8685692 DOI: 10.1073/pnas.2107503118] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/11/2021] [Indexed: 11/18/2022] Open
Abstract
Hydrogen peroxide (H2O2) is responsible for numerous damages when overproduced, and its detection is crucial for a better understanding of H2O2-mediated signaling in physiological and pathological processes. For this purpose, various "off-on" small fluorescent probes relying on a boronate trigger have been prepared, and this design has also been involved in the development of H2O2-activated prodrugs or theranostic tools. However, this design suffers from slow kinetics, preventing activation by H2O2 with a short response time. Therefore, faster H2O2-reactive groups are awaited. To address this issue, we have successfully developed and characterized a prototypic borinic-based fluorescent probe containing a coumarin scaffold. We determined its in vitro kinetic constants toward H2O2-promoted oxidation. We measured 1.9 × 104 m-1⋅s-1 as a second-order rate constant, which is 10,000-fold faster than its well-established boronic counterpart (1.8 m-1⋅s-1). This improved reactivity was also effective in a cellular context, rendering borinic acids an advantageous trigger for H2O2-mediated release of effectors such as fluorescent moieties.
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Affiliation(s)
- Blaise Gatin-Fraudet
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, Gif-sur-Yvette 91198, France
- Université Paris-Saclay, CNRS, Institut de Chimie Moléculaire et des Matériaux d'Orsay, UMR CNRS 8182, Orsay 91405, France
| | - Roxane Ottenwelter
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, Gif-sur-Yvette 91198, France
| | - Thomas Le Saux
- PASTEUR, Département de Chimie, École Normale Supérieure, Université Paris Sciences et Lettres, CNRS, Sorbonne Université, Paris 75005, France
| | - Stéphanie Norsikian
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, Gif-sur-Yvette 91198, France
| | - Mathilde Pucher
- Université Paris-Saclay, CNRS, Institut de Chimie Moléculaire et des Matériaux d'Orsay, UMR CNRS 8182, Orsay 91405, France
| | - Thomas Lombès
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, Gif-sur-Yvette 91198, France
| | - Aurélie Baron
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, Gif-sur-Yvette 91198, France
| | - Philippe Durand
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, Gif-sur-Yvette 91198, France
| | - Gilles Doisneau
- Université Paris-Saclay, CNRS, Institut de Chimie Moléculaire et des Matériaux d'Orsay, UMR CNRS 8182, Orsay 91405, France
| | - Yann Bourdreux
- Université Paris-Saclay, CNRS, Institut de Chimie Moléculaire et des Matériaux d'Orsay, UMR CNRS 8182, Orsay 91405, France
| | - Bogdan I Iorga
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, Gif-sur-Yvette 91198, France
| | - Marie Erard
- Université Paris-Saclay, CNRS, Institut de Chimie Physique, UMR CNRS 8000, Orsay 91405, France
| | - Ludovic Jullien
- PASTEUR, Département de Chimie, École Normale Supérieure, Université Paris Sciences et Lettres, CNRS, Sorbonne Université, Paris 75005, France
| | - Dominique Guianvarc'h
- Université Paris-Saclay, CNRS, Institut de Chimie Moléculaire et des Matériaux d'Orsay, UMR CNRS 8182, Orsay 91405, France
| | - Dominique Urban
- Université Paris-Saclay, CNRS, Institut de Chimie Moléculaire et des Matériaux d'Orsay, UMR CNRS 8182, Orsay 91405, France;
| | - Boris Vauzeilles
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, Gif-sur-Yvette 91198, France;
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24
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Tan Y, Wu J, Song L, Zhang M, Hipolito CJ, Wu C, Wang S, Zhang Y, Yin Y. Merging the Versatile Functionalities of Boronic Acid with Peptides. Int J Mol Sci 2021; 22:ijms222312958. [PMID: 34884766 PMCID: PMC8657650 DOI: 10.3390/ijms222312958] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 11/23/2021] [Accepted: 11/24/2021] [Indexed: 11/16/2022] Open
Abstract
Peptides inherently feature the favorable properties of being easily synthesized, water-soluble, biocompatible, and typically non-toxic. Thus, boronic acid has been widely integrated with peptides with the goal of discovering peptide ligands with novel biological activities, and this effort has led to broad applications. Taking the integration between boronic acid and peptide as a starting point, we provide an overview of the latest research advances and highlight the versatile and robust functionalities of boronic acid. In this review, we summarize the diverse applications of peptide boronic acids in medicinal chemistry and chemical biology, including the identification of covalent reversible enzyme inhibitors, recognition, and detection of glycans on proteins or cancer cell surface, delivery of siRNAs, development of pH responsive devices, and recognition of RNA or bacterial surfaces. Additionally, we discuss boronic acid-mediated peptide cyclization and peptide modifications, as well as the facile chemical synthesis of peptide boronic acids, which paved the way for developing a growing number of peptide boronic acids.
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Affiliation(s)
- Yahong Tan
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, China; (Y.T.); (J.W.); (L.S.); (M.Z.); (C.W.); (Y.Z.)
| | - Junjie Wu
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, China; (Y.T.); (J.W.); (L.S.); (M.Z.); (C.W.); (Y.Z.)
| | - Lulu Song
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, China; (Y.T.); (J.W.); (L.S.); (M.Z.); (C.W.); (Y.Z.)
| | - Mengmeng Zhang
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, China; (Y.T.); (J.W.); (L.S.); (M.Z.); (C.W.); (Y.Z.)
| | - Christopher John Hipolito
- Screening & Compound Profiling, Quantitative Biosciences, Merck & Co., Inc., Kenilworth, NJ 07033, USA;
| | - Changsheng Wu
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, China; (Y.T.); (J.W.); (L.S.); (M.Z.); (C.W.); (Y.Z.)
| | - Siyuan Wang
- Department of Medicinal Chemistry, College of Pharmacy, Shenzhen Technology University, Shenzhen 518118, China
- Correspondence: (S.W.); (Y.Y.)
| | - Youming Zhang
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, China; (Y.T.); (J.W.); (L.S.); (M.Z.); (C.W.); (Y.Z.)
| | - Yizhen Yin
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, China; (Y.T.); (J.W.); (L.S.); (M.Z.); (C.W.); (Y.Z.)
- Correspondence: (S.W.); (Y.Y.)
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25
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Volochnyuk DM, Gorlova AO, Grygorenko OO. Saturated Boronic Acids, Boronates, and Trifluoroborates: An Update on Their Synthetic and Medicinal Chemistry. Chemistry 2021; 27:15277-15326. [PMID: 34499378 DOI: 10.1002/chem.202102108] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Indexed: 12/13/2022]
Abstract
This review discusses recent advances in the chemistry of saturated boronic acids, boronates, and trifluoroborates. Applications of the title compounds in the design of boron-containing drugs are surveyed, with special emphasis on α-amino boronic derivatives. A general overview of saturated boronic compounds as modern tools to construct C(sp3 )-C and C(sp3 )-heteroatom bonds is given, including recent developments in the Suzuki-Miyaura and Chan-Lam cross-couplings, single-electron-transfer processes including metallo- and organocatalytic photoredox reactions, and transformations of boron "ate" complexes. Finally, an attempt to summarize the current state of the art in the synthesis of saturated boronic acids, boronates, and trifluoroborates is made, with a brief mention of the "classical" methods (transmetallation of organolithium/magnesium reagents with boron species, anti-Markovnikov hydroboration of alkenes, and the modification of alkenyl boron compounds) and a special focus on recent methodologies (boronation of alkyl (pseudo)halides, derivatives of carboxylic acids, alcohols, and primary amines, boronative C-H activation, novel approaches to alkene hydroboration, and 1,2-metallate-type rearrangements).
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Affiliation(s)
- Dmitriy M Volochnyuk
- Enamine Ltd. (www.enamine.net), Chervonotkatska 78, Kyiv, 02094, Ukraine.,Taras Shevchenko National University of Kyiv, Volodymyrska Street 60, Kyiv, 01601, Ukraine.,Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Murmanska Street 5, Kyiv, 02094, Ukraine
| | - Alina O Gorlova
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Murmanska Street 5, Kyiv, 02094, Ukraine
| | - Oleksandr O Grygorenko
- Enamine Ltd. (www.enamine.net), Chervonotkatska 78, Kyiv, 02094, Ukraine.,Taras Shevchenko National University of Kyiv, Volodymyrska Street 60, Kyiv, 01601, Ukraine
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26
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Sharma HA, Essman JZ, Jacobsen EN. Enantioselective catalytic 1,2-boronate rearrangements. Science 2021; 374:752-757. [PMID: 34735250 DOI: 10.1126/science.abm0386] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Hayden A Sharma
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA
| | - Jake Z Essman
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA
| | - Eric N Jacobsen
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA
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27
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Rao GBD, Anjaneyulu B, Kaushik MP, Prasad MR. β‐Ketoesters: An Overview and It's Applications via Transesterification. ChemistrySelect 2021. [DOI: 10.1002/slct.202102949] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
| | - Bendi Anjaneyulu
- Department of Chemistry Faculty of Sciences Shree Guru Gobind Singh Tricentenary University Haryana 122505, P.B India
| | - Mahabir. P. Kaushik
- Amity School of Applied Sciences Amity University Gwalior 474005 Madhya Pradesh India
| | - Mailavaram. R. Prasad
- Department of Pharmaceutical Chemistry Shri Vishnu College of Pharmacy Vishnupur, Bhimavaram 534202, A.P. India
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28
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Qin ZN, Ding J, Yu QW, Zhou P, Feng YQ. A boronic acid-modified C 60 derivatization reagent for the rapid detection of 3-monochloropropane-1,2-diol using matrix-assisted laser desorption/ionization-mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2021; 35:e9169. [PMID: 34293234 DOI: 10.1002/rcm.9169] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/20/2021] [Accepted: 07/21/2021] [Indexed: 06/13/2023]
Abstract
RATIONALE 3-Monochloropropane-1,2-diol (3-MCPD) is a well-known contaminant formed in food thermal processing, which could be found in a variety of foodstuffs. Due to its potential carcinogenicity, it was essential to quickly develop a rapid and high-throughput analytical method to monitor 3-MCPD in foodstuffs, which is described in this study. METHODS 3-MCPD was extracted from foodstuffs and then was derivatized with a boronic acid-modified C60 (B-C60 ) through the boronic acid-diol reaction. Microwave heating was used to accelerate the derivatization reaction. Mass spectrometry (MS) analysis was conducted using matrix-assisted laser desorption/ionization-MS (MALDI-MS). The application of the method was validated using various smoked food samples. RESULTS The chemical derivatization of 3-MCPD with B-C60 enabled the addition of a C60 -tag to 3-MCPD. High-throughput analysis of the sample within 0.5 h was realized. A good linear range from 0.02 to 1.5 μg mL-1 for 3-MCPD was obtained, with a detection limit of 0.005 μg mL-1 . The recoveries in spiked foodstuffs ranged from 85.4% to 115.1% with relative standard deviations of 2.0%-14.2%. This method was successfully applied to detect 3-MCPD in smoked foodstuffs. CONCLUSIONS A quantitative method was developed for the detection of 3-MCPD in foodstuffs using B-C60 derivatization combined with MALDI-MS strategy. This proposed method may serve as a potential platform for the rapid and high-throughput analysis of 3-MCPD in foodstuffs for the purpose of food safety control.
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Affiliation(s)
- Zhang-Na Qin
- Department of Chemistry, Wuhan University, Wuhan, China
| | - Jun Ding
- Department of Chemistry, Wuhan University, Wuhan, China
| | - Qiong-Wei Yu
- Department of Chemistry, Wuhan University, Wuhan, China
| | - Ping Zhou
- Department of Chemistry, Wuhan University, Wuhan, China
| | - Yu-Qi Feng
- Department of Chemistry, Wuhan University, Wuhan, China
- Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, China
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29
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Abstract
Chemical reactions of single molecules, caused by rapid formation or breaking of chemical bonds, are difficult to observe even with state-of-the-art instruments. A biological nanopore can be engineered into a single molecule reactor, capable of detecting the binding of a monatomic ion or the transient appearance of chemical intermediates. Pore engineering of this type is however technically challenging, which has significantly restricted further development of this technique. We propose a versatile strategy, "programmable nano-reactors for stochastic sensing" (PNRSS), by which a variety of single molecule reactions of hydrogen peroxide, metal ions, ethylene glycol, glycerol, lactic acid, vitamins, catecholamines or nucleoside analogues can be observed directly. PNRSS presents a refined sensing resolution which can be further enhanced by an artificial intelligence algorithm. Remdesivir, a nucleoside analogue and an investigational anti-viral drug used to treat COVID-19, can be distinguished from its active triphosphate form by PNRSS, suggesting applications in pharmacokinetics or drug screening.
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30
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Hamzehpoor E, Jonderian A, McCalla E, Perepichka DF. Synthesis of Boroxine and Dioxaborole Covalent Organic Frameworks via Transesterification and Metathesis of Pinacol Boronates. J Am Chem Soc 2021; 143:13274-13280. [PMID: 34428908 DOI: 10.1021/jacs.1c05987] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Boroxine and dioxaborole are the first and some of the most studied synthons of covalent organic frameworks (COFs). Despite their wide application in the design of functional COFs over the last 15 years, their synthesis still relies on the original Yaghi's condensation of boronic acids (with itself or with polyfunctional catechols), some of which are difficult to prepare, poorly soluble, or unstable in the presence of water. Here, we propose a new synthetic approach to boroxine COFs (on the basis of the transesterification of pinacol aryl boronates (aryl-Bpins) with methyl boronic acid (MBA) and dioxaborole COFs (through the metathesis of pinacol boronates with MBA-protected catechols). The aryl-Bpin and MBA-protected catechols are easy to purify, highly soluble, and bench-stable. Furthermore, the kinetic analysis of the two model reactions reveals high reversibility (Keq ∼ 1) and facile control over the equilibrium. Unlike the conventional condensation, which forms water as a byproduct, the byproduct of the metathesis (MBA pinacolate) allows for easy kinetic measurements of the COF formation by conventional 1H NMR. We show the generality of this approach by the synthesis of seven known boroxine/dioxaborole COFs whose crystallinity is better or equal to those reported by conventional condensation. We also apply metathesis polymerization to obtain two new COFs, Py4THB and B2HHTP, whose synthesis was previously precluded by the insolubility and hydrolytic instability, respectively, of the boronic acid precursors.
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Affiliation(s)
- Ehsan Hamzehpoor
- Department of Chemistry, McGill University, Montreal, Quebec H3A 0B8, Canada
| | - Antranik Jonderian
- Department of Chemistry, McGill University, Montreal, Quebec H3A 0B8, Canada
| | - Eric McCalla
- Department of Chemistry, McGill University, Montreal, Quebec H3A 0B8, Canada
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31
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Altarejos J, Sucunza D, Vaquero JJ, Carreras J. Enantioselective Copper-Catalyzed Synthesis of Trifluoromethyl-Cyclopropylboronates. Org Lett 2021; 23:6174-6178. [PMID: 34320310 PMCID: PMC8895459 DOI: 10.1021/acs.orglett.1c02420] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
A copper-catalyzed
enantioselective cyclopropanation involving
trifluorodiazoethane in the presence of alkenyl boronates has been
developed. This transformation enables the preparation of 2-substituted-3-(trifluoromethyl)cyclopropylboronates
with high levels of stereocontrol. The products are valuable synthetic
intermediates by transformation of the boronate group. This methodology
can be applied to the synthesis of novel trifluoromethylated analogues
of trans-2-arylcyclopropylamines, which are prevalent
motifs in biologically active compounds.
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Affiliation(s)
- Julia Altarejos
- Universidad de Alcalá, Departamento de Química Orgánica y Química Inorgánica,, Alcalá de Henares 28805, Spain.,Instituto de Investigación Química Andrés Manuel del Río (IQAR), Universidad de Alcalá, Alcalá de Henares 28805, Spain.,Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid 28034, Spain
| | - David Sucunza
- Universidad de Alcalá, Departamento de Química Orgánica y Química Inorgánica,, Alcalá de Henares 28805, Spain.,Instituto de Investigación Química Andrés Manuel del Río (IQAR), Universidad de Alcalá, Alcalá de Henares 28805, Spain.,Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid 28034, Spain
| | - Juan J Vaquero
- Universidad de Alcalá, Departamento de Química Orgánica y Química Inorgánica,, Alcalá de Henares 28805, Spain.,Instituto de Investigación Química Andrés Manuel del Río (IQAR), Universidad de Alcalá, Alcalá de Henares 28805, Spain.,Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid 28034, Spain
| | - Javier Carreras
- Universidad de Alcalá, Departamento de Química Orgánica y Química Inorgánica,, Alcalá de Henares 28805, Spain.,Instituto de Investigación Química Andrés Manuel del Río (IQAR), Universidad de Alcalá, Alcalá de Henares 28805, Spain.,Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid 28034, Spain
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32
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Minus MB, Moor SR, Pary FF, Nirmani LPT, Chwatko M, Okeke B, Singleton JE, Nelson TL, Lynd NA, Anslyn EV. "Benchtop" Biaryl Coupling Using Pd/Cu Cocatalysis: Application to the Synthesis of Conjugated Polymers. Org Lett 2021; 23:2873-2877. [PMID: 33784461 DOI: 10.1021/acs.orglett.1c00479] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Typically, Suzuki couplings used in polymerizations are performed at raised temperatures in inert atmospheres. As a result, the synthesis of aromatic materials that utilize this chemistry often demands expensive and specialized equipment on an industrial scale. Herein, we describe a bimetallic methodology that exploits the distinct reactivities of palladium and copper to perform high yielding aryl-aryl dimerizations and polymerizations that can be performed on a benchtop under ambient conditions. These couplings are facile and can be performed by simple mixing in the open vessel. To demonstrate the utility of this method in the context of polymer synthesis: polyfluorene, polycarbazole, polysilafluorene, and poly(6,12-dihydro-dithienoindacenodithiophene) were created at ambient temperature and open to air.
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Affiliation(s)
- Matthew B Minus
- Department of Chemistry, Prairie View A&M University, Prairie View, Texas 77446, United States.,Department of Chemistry, University of Texas at Austin, Austin, Texas 78712, United States
| | - Sarah R Moor
- Department of Chemistry, University of Texas at Austin, Austin, Texas 78712, United States
| | - Fathima F Pary
- Department of Chemistry, Oklahoma State University, Stillwater, Oklahoma74078, United States
| | - L P T Nirmani
- Department of Chemistry, Oklahoma State University, Stillwater, Oklahoma74078, United States
| | - Malgorzata Chwatko
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712, United States
| | - Brandon Okeke
- Department of Chemistry, University of Texas at Austin, Austin, Texas 78712, United States
| | - Josh E Singleton
- Department of Chemistry, Prairie View A&M University, Prairie View, Texas 77446, United States
| | - Toby L Nelson
- Department of Chemistry, Oklahoma State University, Stillwater, Oklahoma74078, United States
| | - Nathaniel A Lynd
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712, United States
| | - Eric V Anslyn
- Department of Chemistry, University of Texas at Austin, Austin, Texas 78712, United States
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33
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Budiman YP, Westcott SA, Radius U, Marder TB. Fluorinated Aryl Boronates as Building Blocks in Organic Synthesis. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001291] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Yudha P. Budiman
- Institute for Inorganic Chemistry Julius-Maximilians University Würzburg Am Hubland 97074 Würzburg Germany
- Institute for Sustainable Chemistry & Catalysis with Boron Julius-Maximilians University Würzburg Am Hubland 97074 Würzburg Germany
- Department of Chemistry Faculty of Mathematics and Natural Sciences Universitas Padjadjaran 45363 Jatinangor Indonesia
| | - Stephen A. Westcott
- Department of Chemistry and Biochemistry Mount Allison University Sackville NB E4 L 1G8 Canada
| | - Udo Radius
- Institute for Inorganic Chemistry Julius-Maximilians University Würzburg Am Hubland 97074 Würzburg Germany
| | - Todd B. Marder
- Institute for Inorganic Chemistry Julius-Maximilians University Würzburg Am Hubland 97074 Würzburg Germany
- Institute for Sustainable Chemistry & Catalysis with Boron Julius-Maximilians University Würzburg Am Hubland 97074 Würzburg Germany
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34
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Zheng K, Jiang L, Yu S, Xian M, Song Z, Liu S, Xu C. The design and synthesis of high efficiency adsorption materials for 1,3-propanediol: physical and chemical structure regulation. RSC Adv 2020; 10:38085-38096. [PMID: 35515184 PMCID: PMC9057242 DOI: 10.1039/d0ra06167k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 10/01/2020] [Indexed: 01/01/2023] Open
Abstract
In this study, a series of polystyrene-divinylbenzene resins with precise physical structure regulation and chemical modification were successfully synthesized. The regulation of Friedel–Crafts reaction conditions resulted in several physical resins with various BET surface areas and pore structures, while the adsorption of 1,3-propanediol revealed that the molecular size and other physical properties exhibited a moderate contribution to the adsorption of hydrophilic compounds. The adsorption processes between 1,3-propanediol and nitrogen, oxygen and boron functional group modified resins were further explored, and boronic acid modified resins named PS-3NB and PS-SBT exhibited higher adsorption capacities than commercial resin CHA-111. The adsorption capacity of PS-3NB and PS-SBT reached 17.54 mg g−1 and 17.23 mg g−1, respectively, which were 37% and 35% higher than that of commercial resin CHA-111. Furthermore, the adsorption mechanism demonstrated that the content of boronic acid, solution pH and adsorbate hydrophobicity were the primary adsorption driving forces. Herein, we provided a method to modify polystyrene-divinylbenzene materials with boronic acid to selectively adsorb hydrophilic polyols via the specific affinity between boronic acid and diol molecule. Chemically modified materials efficiently captured 1,3-propanediol via the specific affinity between boronic acid and diol.![]()
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Affiliation(s)
- Kexin Zheng
- Chemical Engineering and Technology, Qingdao University of Science & Technology Qingdao 266042 China +86-0532-8402-2782.,Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences Qingdao 266101 China +86-0532-5878-2981
| | - Long Jiang
- Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences Qingdao 266101 China +86-0532-5878-2981
| | - Shitao Yu
- Chemical Engineering and Technology, Qingdao University of Science & Technology Qingdao 266042 China +86-0532-8402-2782
| | - Mo Xian
- Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences Qingdao 266101 China +86-0532-5878-2981
| | - Zhanqian Song
- Chemical Engineering and Technology, Qingdao University of Science & Technology Qingdao 266042 China +86-0532-8402-2782.,National Engineering & Technology Research Center of Forest Chemical Industry, Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry Nanjing 210042 China
| | - Shiwei Liu
- Chemical Engineering and Technology, Qingdao University of Science & Technology Qingdao 266042 China +86-0532-8402-2782
| | - Chao Xu
- Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences Qingdao 266101 China +86-0532-5878-2981
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35
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Hinkes SPA, Kämmerer S, Klein CDP. Diversity-oriented synthesis of peptide-boronic acids by a versatile building-block approach. Chem Sci 2020; 11:9898-9903. [PMID: 34094250 PMCID: PMC8162117 DOI: 10.1039/d0sc03999c] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 08/20/2020] [Indexed: 12/25/2022] Open
Abstract
A new strategy for the synthesis of peptide-boronic acids (PBAs) is presented. 20 Fmoc-protected natural amino acids with orthogonal side-chain protection were straightforwardly converted into their corresponding boron analogues in three simple steps. Subsequent immobilisation on commercially available 1-glycerol polystyrene resin and on-resin transformations yielded a diversity of sequences in high purity. The strategy eliminates various synthetic obstacles such as multi-step routes, low yields, and inseparable impurities. The described method comprises great potential to be implemented in automated combinatorial approaches by markedly facilitating the access to a variety of PBAs. The coupling of amino acids or other building blocks with α-aminoboronates allows the creation of hybrid molecules with significant potential in various scientific disciplines, such as medicinal chemistry, structural biology, and materials science.
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Affiliation(s)
- Stefan P A Hinkes
- Department of Medicinal Chemistry, Institute of Pharmacy and Molecular Biotechnology (IPMB), Heidelberg University Im Neuenheimer Feld 364 69120 Heidelberg Germany
| | - Severin Kämmerer
- Department of Medicinal Chemistry, Institute of Pharmacy and Molecular Biotechnology (IPMB), Heidelberg University Im Neuenheimer Feld 364 69120 Heidelberg Germany
| | - Christian D P Klein
- Department of Medicinal Chemistry, Institute of Pharmacy and Molecular Biotechnology (IPMB), Heidelberg University Im Neuenheimer Feld 364 69120 Heidelberg Germany
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36
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Munteanu C, Spiller TE, Qiu J, DelMonte AJ, Wisniewski SR, Simmons EM, Frantz DE. Pd- and Ni-Based Systems for the Catalytic Borylation of Aryl (Pseudo)halides with B2(OH)4. J Org Chem 2020; 85:10334-10349. [DOI: 10.1021/acs.joc.0c00929] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Charissa Munteanu
- Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas 78249, United States
| | - Taylor E. Spiller
- Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas 78249, United States
| | - Jun Qiu
- Chemical and Synthetic Development, Bristol-Myers Squibb, 1 Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Albert J. DelMonte
- Chemical and Synthetic Development, Bristol-Myers Squibb, 1 Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Steven R. Wisniewski
- Chemical and Synthetic Development, Bristol-Myers Squibb, 1 Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Eric M. Simmons
- Chemical and Synthetic Development, Bristol-Myers Squibb, 1 Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Doug E. Frantz
- Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas 78249, United States
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Gao P, Szostak M. Highly Selective and Divergent Acyl and Aryl Cross-Couplings of Amides via Ir-Catalyzed C–H Borylation/N–C(O) Activation. Org Lett 2020; 22:6010-6015. [DOI: 10.1021/acs.orglett.0c02105] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Pengcheng Gao
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Michal Szostak
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
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38
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Smith CD, Thompson A. Facile deprotection of F-BODIPYs using methylboronic acid. RSC Adv 2020; 10:24273-24279. [PMID: 35516207 PMCID: PMC9055154 DOI: 10.1039/d0ra05151a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 06/12/2020] [Indexed: 11/21/2022] Open
Abstract
4,4-Difluoro-4-bora-3a,4a-diaza-s-indacenes (F-BODIPYs) are deprotected through removal of the -BF2 moiety upon treatment with methylboronic acid. The tolerance of various substitution patterns about the dipyrrinato core is demonstrated via the deprotection of thirteen F-BODIPYs and an F-aza-BODIPY. Work-up with aq. HBr affords the desired dipyrin HBr salt in quantitative yield without need for purification.
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Affiliation(s)
- Craig D Smith
- Department of Chemistry, Dalhousie University PO BOX 15000 Halifax NS B3H 4R2 Canada
| | - Alison Thompson
- Department of Chemistry, Dalhousie University PO BOX 15000 Halifax NS B3H 4R2 Canada
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39
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Fischer M, Schmidtmann M. B(C 6F 5) 3- and HB(C 6F 5) 2-mediated transformations of isothiocyanates. Chem Commun (Camb) 2020; 56:6205-6208. [PMID: 32364554 DOI: 10.1039/d0cc02626c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This contribution reports on the reactivity of isothiocyanates towards the boranes B(C6F5)3 and HB(C6F5)2. The reactions of alkyl-substituted isothiocyanates with B(C6F5)3 were found to result in rearrangement reactions to yield stable thiocyanate-B(C6F5)3 adducts. Treatment of isothiocyanates with HB(C6F5)2 leads to 1,2-hydroboration and thus, B,N,C,S heterocycles are formed, which react further under non-inert conditions. Hydrolysis of the hydroboration products leads to a new access to thioformamides.
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Affiliation(s)
- Malte Fischer
- Institute of Chemistry, Carl von Ossietzky University Oldenburg, Carl von Ossietzky Straße 9-11, D-26129 Oldenburg, Germany.
| | - Marc Schmidtmann
- Institute of Chemistry, Carl von Ossietzky University Oldenburg, Carl von Ossietzky Straße 9-11, D-26129 Oldenburg, Germany.
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