1
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Yin D, Guo Y, Xu T, Ma J. Investigation of thia-Diels-Alder Reactions by Ultrafast Transient Absorption Spectroscopy and DFT Calculations. ACS OMEGA 2024; 9:14436-14441. [PMID: 38559932 PMCID: PMC10976361 DOI: 10.1021/acsomega.4c00235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 01/31/2024] [Accepted: 02/23/2024] [Indexed: 04/04/2024]
Abstract
The thia-Diels-Alder reaction represents a versatile synthetic method for the preparation of six-membered sulfur-containing compounds. However, the mechanism of the thia-Diels-Alder reactions remains unclear. In this work, time-resolved spectroscopic experiments and DFT calculations demonstrate that phenacyl sulfide undergoes Norrish II cleavage to produce thioaldehyde, and ortho-hydroxy benzhydryl alcohol occurs in a dehydration reaction to generate o-QMs using diphenylphosphate as the catalyst. Then, the thia-Diels-Alder reaction takes place between thioaldehyde and o-QMs by an asynchronous concerted mechanism. The illustration of the thia-Diels-Alder reaction mechanism not only provides important support for organic synthesis and drug design but also enhances fundamental insights into reaction pathways and catalytic processes in the field of chemical synthesis.
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Affiliation(s)
- Dandan Yin
- Key
Laboratory of Synthetic and Natural Functional Molecule Chemistry
of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, China
| | - Yan Guo
- Key
Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education,
School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China
| | - Tongyu Xu
- Key
Laboratory of Synthetic and Natural Functional Molecule Chemistry
of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, China
| | - Jiani Ma
- Key
Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education,
School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China
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2
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Tehami M, Imam HT, Abdullah I, Hosford J, Wong XJ, Rahman NA, Wong LS. Biocatalytic Generation of o-Quinone Imines in the Synthesis of 1,4-Benzoxazines and Its Comparative Green Chemistry Metrics. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2024; 12:2678-2685. [PMID: 38389905 PMCID: PMC10880089 DOI: 10.1021/acssuschemeng.3c06758] [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: 10/19/2023] [Revised: 01/09/2024] [Accepted: 01/10/2024] [Indexed: 02/24/2024]
Abstract
1,4-Benzoxazines are important motifs in many pharmaceuticals and can be formed by a reaction sequence involving the oxidation of o-aminophenols to their corresponding quinone imine followed by an in situ inverse electron demand Diels-Alder (IEDDA) cycloaddition with a suitable dienophile. Reported herein is the development of a reaction sequence that employs horseradish peroxidase to catalyze the oxidation of the aminophenols prior to the IEDDA as a more sustainable alternative to the use of conventional stoichiometric oxidants. The synthesis of 10 example benzoxazines is demonstrated in this "one-pot, two-step" procedure with yields between 42% and 92%. The green chemistry metrics, including the E-factor and generalized reaction mass efficiency, for this biocatalytic reaction were compared against the conventional chemical approach. It was found that the reported biocatalytic route was approximately twice as green by these measures.
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Affiliation(s)
- Maryam Tehami
- Manchester
Institute of Biotechnology, University of
Manchester, 131 Princess Street, M1 7DN Manchester, United Kingdom
- Department
of Chemistry, University of Manchester, Oxford Road, M13 9PL Manchester, United Kingdom
| | - Hasan Tanvir Imam
- Manchester
Institute of Biotechnology, University of
Manchester, 131 Princess Street, M1 7DN Manchester, United Kingdom
- Department
of Chemistry, University of Manchester, Oxford Road, M13 9PL Manchester, United Kingdom
| | - Iskandar Abdullah
- Manchester
Institute of Biotechnology, University of
Manchester, 131 Princess Street, M1 7DN Manchester, United Kingdom
- Department
of Chemistry, University of Manchester, Oxford Road, M13 9PL Manchester, United Kingdom
- Department
of Chemistry, Faculty of Science, Universiti
Malaya, 50603 Kuala Lumpur, Malaysia
| | - Joseph Hosford
- Manchester
Institute of Biotechnology, University of
Manchester, 131 Princess Street, M1 7DN Manchester, United Kingdom
- Department
of Chemistry, University of Manchester, Oxford Road, M13 9PL Manchester, United Kingdom
| | - Xiao Juie Wong
- Department
of Chemistry, University of Manchester, Oxford Road, M13 9PL Manchester, United Kingdom
| | | | - Lu Shin Wong
- Manchester
Institute of Biotechnology, University of
Manchester, 131 Princess Street, M1 7DN Manchester, United Kingdom
- Department
of Chemistry, University of Manchester, Oxford Road, M13 9PL Manchester, United Kingdom
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3
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Valduga AT, Gonçalves IL, Saorin Puton BM, de Lima Hennig B, Sousa de Brito E. Anthraquinone as emerging contaminant: technological, toxicological, regulatory and analytical aspects. Toxicol Res 2024; 40:11-21. [PMID: 38223676 PMCID: PMC10786786 DOI: 10.1007/s43188-023-00202-3] [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: 04/03/2023] [Revised: 06/23/2023] [Accepted: 07/12/2023] [Indexed: 01/16/2024] Open
Abstract
Anthraquinone (anthracene-9,10-dione) is a multifaceted chemical used in the paper industry, in the production of synthetic dyes, in crop protection against birds and is released from fossil fuels. Additionally, the anthraquinone scaffold, when substituted with sugars and hydroxyl groups is found in plants as metabolites. Because of these multiple applications, it is produced on a large scale worldwide. However, its toxicological aspects have gained interest, due to the low limits in the foods defined by legislation. Worrying levels of anthracene-9,10-dione have been detected in wastewater, atmospheric air, soil, food packaging and more recently, in actual foodstuffs. Recent investigations aiming to identify the anthracene-9,10-dione contamination sources in teas highlighted the packaging, leaves processing, anthracene metabolism, reactions between tea constituents and deposition from the environment. In this context, this review seeks to highlight the uses, sources, biological effects, analytical and regulatory aspects of anthracene-9,10-dione. Graphical Abstract
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Affiliation(s)
- Alice Teresa Valduga
- Graduate Program in Ecology, Universidade Regional Integrada do Alto Uruguai e das Missões-Erechim, Avenida Sete de Setembro, Erechim, RS 1621 Brazil
- Graduate Program in Food Engineerng, Universidade Regional Integrada do Alto Uruguai e das Missões-Erechim, Avenida Sete de Setembro, Erechim, RS 1621 Brazil
| | - Itamar Luís Gonçalves
- Faculty of Medicine, Universidade Regional Integrada do Alto Uruguai e das Missões-Erechim, Avenida Sete de Setembro, Erechim, RS 1621 Brazil
| | - Bruna Maria Saorin Puton
- Graduate Program in Food Engineerng, Universidade Regional Integrada do Alto Uruguai e das Missões-Erechim, Avenida Sete de Setembro, Erechim, RS 1621 Brazil
| | - Bruna de Lima Hennig
- Graduate Program in Ecology, Universidade Regional Integrada do Alto Uruguai e das Missões-Erechim, Avenida Sete de Setembro, Erechim, RS 1621 Brazil
| | - Edy Sousa de Brito
- Embrapa Agroindústria Tropical, Rua Dra. Sara Mesquita 2270, Fortaleza, CE Brazil
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4
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Jütte M, Wilbert JA, Reusing M, Abdighahroudi MS, Schüth C, Lutze HV. Reaction Mechanisms of Chlorine Dioxide with Phenolic Compounds─Influence of Different Substituents on Stoichiometric Ratios and Intrinsic Formation of Free Available Chlorine. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:18846-18855. [PMID: 37276343 DOI: 10.1021/acs.est.2c09496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Chlorine dioxide (ClO2) is an oxidant applied in water treatment processes that is very effective for disinfection and abatement of inorganic and organic pollutants. Thereby phenol is the most important reaction partner of ClO2 in reactions of natural organic matter (NOM) and in pollutant degradation. It was previously reported that with specific reaction partners (e.g., phenol), free available chlorine (FAC) could form as another byproduct next to chlorite (ClO2-). This study investigates the impact of different functional groups attached to the aromatic ring of phenol on the formation of inorganic byproducts (i.e., FAC, ClO2-, chloride, and chlorate) and the overall reaction mechanism. The majority of the investigated compounds reacted with a 2:1 stoichiometry and formed 50% ClO2- and 50% FAC, regardless of the position and kind of the groups attached to the aromatic ring. The only functional groups strongly influencing the FAC formation in the ClO2 reaction with phenols were hydroxyl- and amino-substituents in ortho- and para-positions, causing 100% ClO2- and 0% FAC formation. Additionally, this class of compounds showed a pH-dependent stoichiometric ratio due to pH-dependent autoxidation. Overall, FAC is an important secondary oxidant in ClO2 based treatment processes. Synergetic effects in pollutant control and disinfection might be observable; however, the formation of halogenated byproducts needs to be considered as well.
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Affiliation(s)
- Mischa Jütte
- Technical University of Darmstadt, Institute IWAR, Chair of Environmental Analytics and Pollutants, Franziska-Braun-Straße 7, 64287 Darmstadt, Germany
| | - Janis A Wilbert
- Technical University of Darmstadt, Institute IWAR, Chair of Environmental Analytics and Pollutants, Franziska-Braun-Straße 7, 64287 Darmstadt, Germany
| | - Marcel Reusing
- Technical University of Darmstadt, Institute IWAR, Chair of Environmental Analytics and Pollutants, Franziska-Braun-Straße 7, 64287 Darmstadt, Germany
| | - Mohammad Sajjad Abdighahroudi
- Technical University of Darmstadt, Institute IWAR, Chair of Environmental Analytics and Pollutants, Franziska-Braun-Straße 7, 64287 Darmstadt, Germany
| | - Christoph Schüth
- Technical University of Darmstadt, Institute of Applied Geosciences, Schnittspahnstr. 9, 64287 Darmstadt, Germany
- IWW Water Centre, Moritzstraße 26, D-45476 Mülheim an der Ruhr, Germany
| | - Holger V Lutze
- Technical University of Darmstadt, Institute IWAR, Chair of Environmental Analytics and Pollutants, Franziska-Braun-Straße 7, 64287 Darmstadt, Germany
- IWW Water Centre, Moritzstraße 26, D-45476 Mülheim an der Ruhr, Germany
- Centre for Water and Environmental Research (ZWU), Universitätsstraße 5, D-45141 Essen, Germany
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5
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Zhang S, De Leon Rodriguez LM, Li FF, Brimble MA. Recent developments in the cleavage, functionalization, and conjugation of proteins and peptides at tyrosine residues. Chem Sci 2023; 14:7782-7817. [PMID: 37502317 PMCID: PMC10370606 DOI: 10.1039/d3sc02543h] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 06/26/2023] [Indexed: 07/29/2023] Open
Abstract
Peptide and protein selective modification at tyrosine residues has become an exploding field of research as tyrosine constitutes a robust alternative to lysine and cysteine-targeted traditional peptide/protein modification protocols. This review offers a comprehensive summary of the latest advances in tyrosine-selective cleavage, functionalization, and conjugation of peptides and proteins from the past three years. This updated overview complements the extensive body of work on site-selective modification of peptides and proteins, which holds significant relevance across various disciplines, including chemical, biological, medical, and material sciences.
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Affiliation(s)
- Shengping Zhang
- Center for Translational Medicine, Shenzhen Bay Laboratory New Zealand
- School of Chemical Sciences, The University of Auckland 23 Symonds St Auckland 1010 New Zealand
- School of Biological Sciences, The University of Auckland 3A Symonds St Auckland 1010 New Zealand
| | | | - Freda F Li
- School of Chemical Sciences, The University of Auckland 23 Symonds St Auckland 1010 New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland 1142 New Zealand
| | - Margaret A Brimble
- School of Chemical Sciences, The University of Auckland 23 Symonds St Auckland 1010 New Zealand
- School of Biological Sciences, The University of Auckland 3A Symonds St Auckland 1010 New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland 1142 New Zealand
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6
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Tuo X, Yu Z, Li J, Qi Y, Peng G, Huang SX, Huang X, Huang JP. Characterization of two putative norlaudanosoline methyltransferases from Aristolochia debilis. JOURNAL OF PLANT PHYSIOLOGY 2023; 285:153983. [PMID: 37116390 DOI: 10.1016/j.jplph.2023.153983] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 03/27/2023] [Accepted: 04/15/2023] [Indexed: 05/22/2023]
Abstract
In view of the nephrotoxicity, hepatotoxicity, and carcinogenicity of aristolochic acids (AAs), the removal of AAs from plants becomes an urgent priority for ensuring the safety of Aristolochia herbal materials. In this study, based on the root-predominant distribution of aristolochic acid I (AAI) in Aristolochia debilis, transcriptome sequencing, in combination with phylogenetic analyses, and gene expression pattern analysis together provided five candidate genes for investigating AAI biosynthesis. Comprehensive in vitro and in vivo enzymatic assays revealed that Ab6OMT1 (6-O-methyltransferase) and AbNMT1 (N-methyltransferase) exhibit promiscuity in substrate recognition, and they could act in a cooperative fashion to achieve conversion of norlaudanosoline, a predicted intermediate in AAI biosynthetic route, into 3'-hydroxy-N-methylcoclaurine through two different methylation reaction sequences. These results shed light on the molecular basis for AAI biosynthesis in Aristolochia herbs. More importantly, Ab6OMT1 and AbNMT1 may be employed as targets for the metabolic engineering of AAI biosynthesis to produce AAs-free Aristolochia herbal materials.
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Affiliation(s)
- Xiaotao Tuo
- State Key Laboratory of Southwestern Chinese Medicine Resources and School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; State Key Laboratory of Phytochemistry and Plant Resources in West China, and CAS Center for Excellence in Molecular Plant Sciences, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
| | - Zhiyin Yu
- State Key Laboratory of Southwestern Chinese Medicine Resources and School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Junheng Li
- State Key Laboratory of Southwestern Chinese Medicine Resources and School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; State Key Laboratory of Phytochemistry and Plant Resources in West China, and CAS Center for Excellence in Molecular Plant Sciences, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
| | - Yuxin Qi
- Hunan Provincial Key Laboratory for Synthetic Biology of Traditional Chinese Medicine, Hunan University of Medicine, Huaihua 418000, China.
| | - Guoqing Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources and School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; State Key Laboratory of Phytochemistry and Plant Resources in West China, and CAS Center for Excellence in Molecular Plant Sciences, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
| | - Sheng-Xiong Huang
- State Key Laboratory of Southwestern Chinese Medicine Resources and School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; State Key Laboratory of Phytochemistry and Plant Resources in West China, and CAS Center for Excellence in Molecular Plant Sciences, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
| | - Xueshuang Huang
- Hunan Provincial Key Laboratory for Synthetic Biology of Traditional Chinese Medicine, Hunan University of Medicine, Huaihua 418000, China.
| | - Jian-Ping Huang
- State Key Laboratory of Southwestern Chinese Medicine Resources and School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; State Key Laboratory of Phytochemistry and Plant Resources in West China, and CAS Center for Excellence in Molecular Plant Sciences, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
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7
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Ndreu L, Hurben AK, Nyman GSA, Tretyakova NY, Karlsson I, Hagvall L. Investigation into Propolis Components Responsible for Inducing Skin Allergy: Air Oxidation of Caffeic Acid and Its Esters Contribute to Hapten Formation. Chem Res Toxicol 2023. [PMID: 37184291 DOI: 10.1021/acs.chemrestox.2c00386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Propolis is a resin-like material produced by bees from the buds of poplar and cone-bearing trees and is used in beehive construction. Propolis is a common additive in various biocosmetics and health-related products, despite the fact that it is a well-known cause of contact allergy. Caffeic acid and its esters have been the primary suspects behind the sensitization potency of propolis-induced contact allergy. However, the chemical structures of the protein adducts formed between these haptens and skin proteins during the process of skin sensitization remain unknown. In this study, the reactivity of three main contact allergens found in propolis, namely, caffeic acid (CA), caffeic acid 1,1-dimethylallyl ester (CAAE), and caffeic acid phenethyl ester (CAPE), was investigated. These compounds were initially subjected to the kinetic direct peptide reactivity assay to categorize the sensitization potency of CA, CAAE, and CAPE, but the data obtained was deemed too unreliable to confidently classify their skin sensitization potential based on this assay alone. To further investigate the chemistry involved in generating possible skin allergy-inducing protein adducts, model peptide reactions with CA, CAAE, and CAPE were conducted and analyzed via liquid chromatography-high-resolution mass spectrometry. Reactions between CA, CAAE, and CAPE and a cysteine-containing peptide in the presence of oxygen, both in closed and open systems, were monitored at specific time points. These studies revealed the formation of two different adducts, one corresponding to thiol addition to the α,β-unsaturated carbonyl region of the caffeic structure and the second corresponding to thiol addition to the catechol, after air oxidation to o-quinone. Observation of these peptide adducts classifies these compounds as prehaptens. Interestingly, no adduct formation was observed when the same reactions were performed under oxygen-free conditions, highlighting the importance of air oxidation processes in CA, CAAE, and CAPE adduct formation. Additionally, through NMR analysis, we found that thiol addition occurs at the C-2 position in the aromatic ring of the CA derivatives. Our results emphasize the importance of air oxidation in the sensitization potency of propolis and shed light on the chemical structures of the resultant haptens which could trigger allergic reactions in vivo.
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Affiliation(s)
- Lorena Ndreu
- Department of Environmental Science, Stockholm University, Stockholm 114 19, Sweden
| | - Alexander K Hurben
- Department of Medicinal Chemistry and the Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Gunnar S A Nyman
- Department of Dermatology and Venereology, Sahlgrenska University Hospital, Region Västra Götaland, Gothenburg 413 45, Sweden
- Department of Dermatology and Venereology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg 405 30, Sweden
| | - Natalia Y Tretyakova
- Department of Medicinal Chemistry and the Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Isabella Karlsson
- Department of Environmental Science, Stockholm University, Stockholm 114 19, Sweden
| | - Lina Hagvall
- Department of Dermatology and Venereology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg 405 30, Sweden
- Department of Occupational and Environmental Medicine, Lund University, Lund 22363, Sweden
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8
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Rosenberger JE, Xie Y, Fang Y, Lyu X, Trout WS, Dmitrenko O, Fox JM. Ligand-Directed Photocatalysts and Far-Red Light Enable Catalytic Bioorthogonal Uncaging inside Live Cells. J Am Chem Soc 2023; 145:6067-6078. [PMID: 36881718 PMCID: PMC10589873 DOI: 10.1021/jacs.2c10655] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
Described are ligand-directed catalysts for live-cell, photocatalytic activation of bioorthogonal chemistry. Catalytic groups are localized via a tethered ligand either to DNA or to tubulin, and red light (660 nm) photocatalysis is used to initiate a cascade of DHTz oxidation, intramolecular Diels-Alder reaction, and elimination to release phenolic compounds. Silarhodamine (SiR) dyes, more conventionally used as biological fluorophores, serve as photocatalysts that have high cytocompatibility and produce minimal singlet oxygen. Commercially available conjugates of Hoechst dye (SiR-H) and docetaxel (SiR-T) are used to localize SiR to the nucleus and microtubules, respectively. Computation was used to assist the design of a new class of redox-activated photocage to release either phenol or n-CA4, a microtubule-destabilizing agent. In model studies, uncaging is complete within 5 min using only 2 μM SiR and 40 μM photocage. In situ spectroscopic studies support a mechanism involving rapid intramolecular Diels-Alder reaction and a rate-determining elimination step. In cellular studies, this uncaging process is successful at low concentrations of both the photocage (25 nM) and the SiR-H dye (500 nM). Uncaging n-CA4 causes microtubule depolymerization and an accompanying reduction in cell area. Control studies demonstrate that SiR-H catalyzes uncaging inside the cell, and not in the extracellular environment. With SiR-T, the same dye serves as a photocatalyst and the fluorescent reporter for microtubule depolymerization, and with confocal microscopy, it was possible to visualize microtubule depolymerization in real time as the result of photocatalytic uncaging in live cells.
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Affiliation(s)
- Julia E. Rosenberger
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA
| | - Yixin Xie
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA
| | - Yinzhi Fang
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA
| | - Xinyi Lyu
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA
| | - William S. Trout
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA
| | - Olga Dmitrenko
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA
| | - Joseph M. Fox
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA
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9
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Ivakhnenko E, Malay V, Demidov O, Knyazev P, Makarova N, Minkin V. A new heteropentacyclic system via coupling sterically crowded o-benzoquinone with o-phenylenediamines. Org Biomol Chem 2023; 21:621-631. [PMID: 36562504 DOI: 10.1039/d2ob02165j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The reaction between 3,5-di(tert-butyl)-o-benzoquinone 1 and o-phenylenediamine performed under oxidative conditions that is highly sensitive to the reaction conditions (type of solvent, ratio of reactants, and duration of the reaction) gives rise to various derivatives of a new condensed 10H-quinoxalino[3,2,1-kl]phenoxazin-10-one heteropentacyclic system. The reaction of 1 with N-phenyl-o-phenylenediamine results in the formation of three phenazine-like compounds and, unexpectedly, a derivative of a new spiro[1,3]dioxole-2,2'-furanyl-1H-benzo[d]imidazole system. The molecular structures of the prepared compounds were authenticated by NMR, mass spectra and X-ray crystallography data.
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Affiliation(s)
- Eugeny Ivakhnenko
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachki St., Rostov-on-Don, 344091, Russian Federation.
| | - Vasily Malay
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachki St., Rostov-on-Don, 344091, Russian Federation.
| | - Oleg Demidov
- North Caucasus Federal University, 1 Pushkin St., Stavropol, 355017, Russian Federation
| | - Pavel Knyazev
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachki St., Rostov-on-Don, 344091, Russian Federation.
| | - Nadezhda Makarova
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachki St., Rostov-on-Don, 344091, Russian Federation.
| | - Vladimir Minkin
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachki St., Rostov-on-Don, 344091, Russian Federation.
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10
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Zhang H, Liu C, Zhu D, Zhang Q, Li J. Medicinal Chemistry Strategies for the Development of Inhibitors Disrupting β-Catenin's Interactions with Its Nuclear Partners. J Med Chem 2023; 66:1-31. [PMID: 36583662 DOI: 10.1021/acs.jmedchem.2c01016] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Dysregulation of the Wnt/β-catenin signaling pathway is strongly associated with various aspects of cancer, including tumor initiation, proliferation, and metastasis as well as antitumor immunity, and presents a promising opportunity for cancer therapy. Wnt/β-catenin signaling activation increases nuclear dephosphorylated β-catenin levels, resulting in β-catenin binding to TCF and additional cotranscription factors, such as BCL9, CBP, and p300. Therefore, directly disrupting β-catenin's interactions with these nuclear partners holds promise for the effective and selective suppression of the aberrant activation of Wnt/β-catenin signaling. Herein, we summarize recent advances in biochemical techniques and medicinal chemistry strategies used to identify potent peptide-based and small-molecule inhibitors that directly disrupt β-catenin's interactions with its nuclear binding partners. We discuss the challenges involved in developing drug-like inhibitors that target the interactions of β-catenin and its nuclear binding partner into therapeutic agents.
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Affiliation(s)
- Hao Zhang
- School of Pharmacy, Fudan University, Shanghai 201203, China.,Novel Technology Center of Pharmaceutical Chemistry, Shanghai Institute of Pharmaceutical Industry Co., Ltd., China State Institute of Pharmaceutical Industry, Shanghai 201203, China
| | - Chenglong Liu
- School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Di Zhu
- School of Pharmacy, Fudan University, Shanghai 201203, China.,Department of Pharmacology, School of Basic Medical Science, Fudan University, Shanghai 201100, China
| | - Qingwei Zhang
- Novel Technology Center of Pharmaceutical Chemistry, Shanghai Institute of Pharmaceutical Industry Co., Ltd., China State Institute of Pharmaceutical Industry, Shanghai 201203, China
| | - Jianqi Li
- Novel Technology Center of Pharmaceutical Chemistry, Shanghai Institute of Pharmaceutical Industry Co., Ltd., China State Institute of Pharmaceutical Industry, Shanghai 201203, China
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11
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Jayachandran B, Parvin TN, Alam MM, Chanda K, MM B. Insights on Chemical Crosslinking Strategies for Proteins. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238124. [PMID: 36500216 PMCID: PMC9738610 DOI: 10.3390/molecules27238124] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/08/2022] [Accepted: 11/09/2022] [Indexed: 11/23/2022]
Abstract
Crosslinking of proteins has gained immense significance in the fabrication of biomaterials for various health care applications. Various novel chemical-based strategies are being continuously developed for intra-/inter-molecular crosslinking of proteins to create a network/matrix with desired mechanical/functional properties without imparting toxicity to the host system. Many materials that are used in biomedical and food packaging industries are prepared by chemical means of crosslinking the proteins, besides the physical or enzymatic means of crosslinking. Such chemical methods utilize the chemical compounds or crosslinkers available from natural sources or synthetically generated with the ability to form covalent/non-covalent bonds with proteins. Such linkages are possible with chemicals like carbodiimides/epoxides, while photo-induced novel chemical crosslinkers are also available. In this review, we have discussed different protein crosslinking strategies under chemical methods, along with the corresponding crosslinking reactions/conditions, material properties and significant applications.
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Affiliation(s)
- Brindha Jayachandran
- Chemistry Division, School of Advanced Sciences, Vellore Institute of Technology, Chennai Campus, Vandalur-Kelambakkam Road, Chennai 600127, India
| | - Thansila N Parvin
- Chemistry Division, School of Advanced Sciences, Vellore Institute of Technology, Chennai Campus, Vandalur-Kelambakkam Road, Chennai 600127, India
| | - M Mujahid Alam
- Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Kaushik Chanda
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, India
- Correspondence: (K.C.); (B.M.)
| | - Balamurali MM
- Chemistry Division, School of Advanced Sciences, Vellore Institute of Technology, Chennai Campus, Vandalur-Kelambakkam Road, Chennai 600127, India
- Correspondence: (K.C.); (B.M.)
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12
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Chao Y, Krishna A, Subramaniam M, Liang D, Pujari SP, Sue AC, Li G, Miloserdov FM, Zuilhof H. Sulfur-Phenolate Exchange: SuFEx-Derived Dynamic Covalent Reactions and Degradation of SuFEx Polymers. Angew Chem Int Ed Engl 2022; 61:e202207456. [PMID: 35819248 PMCID: PMC9540147 DOI: 10.1002/anie.202207456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Indexed: 11/15/2022]
Abstract
The products of the SuFEx reaction between sulfonimidoyl fluorides and phenols, sulfonimidates, are shown to display dynamic covalent chemistry with other phenols. This reaction was shown to be enantiospecific, finished in minutes at room temperature in high yields, and useful for both asymmetric synthesis and sustainable polymer production. Its wide scope further extends the usefulness of SuFEx and related click chemistries.
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Affiliation(s)
- Yang Chao
- School of Pharmaceutical Science and TechnologyTianjin University92 Weijin RoadTianjin300072China
| | - Akash Krishna
- School of Pharmaceutical Science and TechnologyTianjin University92 Weijin RoadTianjin300072China
| | - Muthusamy Subramaniam
- School of Pharmaceutical Science and TechnologyTianjin University92 Weijin RoadTianjin300072China
- Laboratory of Organic ChemistryWageningen UniversityStippeneng 46708WEWageningenThe Netherlands
| | - Dong‐Dong Liang
- Laboratory of Organic ChemistryWageningen UniversityStippeneng 46708WEWageningenThe Netherlands
- Department of ChemistryCapital Normal UniversityBeijing100048China
| | - Sidharam P. Pujari
- Laboratory of Organic ChemistryWageningen UniversityStippeneng 46708WEWageningenThe Netherlands
| | | | - Guanna Li
- Laboratory of Organic ChemistryWageningen UniversityStippeneng 46708WEWageningenThe Netherlands
- Biobased Chemistry and TechnologyWageningen UniversityBornse Weilanden 96708WGWageningenThe Netherlands
| | - Fedor M. Miloserdov
- Laboratory of Organic ChemistryWageningen UniversityStippeneng 46708WEWageningenThe Netherlands
| | - Han Zuilhof
- School of Pharmaceutical Science and TechnologyTianjin University92 Weijin RoadTianjin300072China
- Laboratory of Organic ChemistryWageningen UniversityStippeneng 46708WEWageningenThe Netherlands
- Department of Chemical and Materials EngineeringFaculty of EngineeringKing Abdulaziz University21589JeddahSaudi Arabia
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13
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Chao Y, Krishna A, Subramaniam M, Liang D, Pujari SP, Sue AC, Li G, Miloserdov FM, Zuilhof H. Sulfur–Phenolate Exchange: SuFEx‐Derived Dynamic Covalent Reactions and Degradation of SuFEx Polymers. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202207456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yang Chao
- School of Pharmaceutical Science and Technology Tianjin University 92 Weijin Road Tianjin 300072 China
| | - Akash Krishna
- School of Pharmaceutical Science and Technology Tianjin University 92 Weijin Road Tianjin 300072 China
| | - Muthusamy Subramaniam
- School of Pharmaceutical Science and Technology Tianjin University 92 Weijin Road Tianjin 300072 China
- Laboratory of Organic Chemistry Wageningen University Stippeneng 4 6708WE Wageningen The Netherlands
| | - Dong‐Dong Liang
- Laboratory of Organic Chemistry Wageningen University Stippeneng 4 6708WE Wageningen The Netherlands
- Department of Chemistry Capital Normal University Beijing 100048 China
| | - Sidharam P. Pujari
- Laboratory of Organic Chemistry Wageningen University Stippeneng 4 6708WE Wageningen The Netherlands
| | | | - Guanna Li
- Laboratory of Organic Chemistry Wageningen University Stippeneng 4 6708WE Wageningen The Netherlands
- Biobased Chemistry and Technology Wageningen University Bornse Weilanden 9 6708WG Wageningen The Netherlands
| | - Fedor M. Miloserdov
- Laboratory of Organic Chemistry Wageningen University Stippeneng 4 6708WE Wageningen The Netherlands
| | - Han Zuilhof
- School of Pharmaceutical Science and Technology Tianjin University 92 Weijin Road Tianjin 300072 China
- Laboratory of Organic Chemistry Wageningen University Stippeneng 4 6708WE Wageningen The Netherlands
- Department of Chemical and Materials Engineering Faculty of Engineering King Abdulaziz University 21589 Jeddah Saudi Arabia
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14
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Yi MH, Jin HS, Wang RB, Zhao LM. Copper-Catalyzed Cascade Annulation of o-Hydroxyphenyl Propargylamines with Pyrazolin-5-ones to Access Pyrano[2,3- c]pyrazoles. J Org Chem 2022; 87:5795-5803. [PMID: 35442039 DOI: 10.1021/acs.joc.2c00122] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An efficient copper-catalyzed cascade annulation of o-hydroxyphenyl propargylamines and pyrazolin-5-ones is described. This methodology leads to the rapid assembly of a series of valuable pyrano[2,3-c]pyrazoles with good yields across a wide range of substrates in a simple fashion. This novel reaction involves the formation of alkynyl ortho-quinone methides, a 1,4-conjugate addition, and a subsequent 6-endo cyclization process. The mechanistic elucidation is well supported by control experiment and literature precedents.
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Affiliation(s)
- Meng-Hao Yi
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Hai-Shan Jin
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Ru-Bing Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Li-Ming Zhao
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China.,State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
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15
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Jang J, Kim DY. Synthesis of trifluoromethylated 4H‐1‐benzopyran derivatives via photocatalytic trifluoromethylation/oxidation/conjugate addition, and cyclization sequences of vinyl phenols. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jihoon Jang
- Soonchunhyang University Department of Chemistry and Department of ICT Environmental Health System KOREA, REPUBLIC OF
| | - Dae Young Kim
- Soonchunhyang University Department of Chemistry and Department of ICT Environmental Health Syntem Asan 336745 Chungnam KOREA, REPUBLIC OF
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16
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Zhang S, De Leon Rodriguez LM, Li FF, Huang R, Leung IKH, Harris PWR, Brimble MA. A novel tyrosine hyperoxidation enables selective peptide cleavage. Chem Sci 2022; 13:2753-2763. [PMID: 35356671 PMCID: PMC8890263 DOI: 10.1039/d1sc06216f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 02/10/2022] [Indexed: 11/21/2022] Open
Abstract
A novel tyrosine hyperoxidation enabling selective peptide cleavage is reported. The scission of the N-terminal amide bond of tyrosine was achieved with Dess-Martin periodinane under mild conditions, generating a C-terminal peptide fragment bearing the unprecedented hyperoxidized tyrosine motif, 4,5,6,7-tetraoxo-1H-indole-2-carboxamide, along with an intact N-terminal peptide fragment. This reaction proceeds with high site-selectivity for tyrosine and exhibits broad substrate scope for various peptides, including those containing post-translational modifications. More importantly, this oxidative cleavage was successfully applied to enable sequencing of three naturally occurring cyclic peptides, including one depsipeptide and one lipopeptide. The linearized peptides generated from the cleavage reaction significantly simplify cyclic peptide sequencing by MS/MS, thus providing a robust tool to facilitate rapid sequence determination of diverse cyclic peptides containing tyrosine. Furthermore, the highly electrophilic nature of the hyperoxidized tyrosine unit disclosed in this work renders it an important electrophilic target for the selective bioconjugation or synthetic manipulation of peptides containing this unit.
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Affiliation(s)
- Shengping Zhang
- School of Chemical Sciences, The University of Auckland 23 Symonds St Auckland 1010 New Zealand
- School of Biological Sciences, The University of Auckland 3A Symonds St Auckland 1010 New Zealand
| | | | - Freda F Li
- School of Chemical Sciences, The University of Auckland 23 Symonds St Auckland 1010 New Zealand
| | - Renjie Huang
- School of Chemical Sciences, The University of Auckland 23 Symonds St Auckland 1010 New Zealand
| | - Ivanhoe K H Leung
- School of Chemical Sciences, The University of Auckland 23 Symonds St Auckland 1010 New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland 1142 New Zealand
| | - Paul W R Harris
- School of Chemical Sciences, The University of Auckland 23 Symonds St Auckland 1010 New Zealand
- School of Biological Sciences, The University of Auckland 3A Symonds St Auckland 1010 New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland 1142 New Zealand
| | - Margaret A Brimble
- School of Chemical Sciences, The University of Auckland 23 Symonds St Auckland 1010 New Zealand
- School of Biological Sciences, The University of Auckland 3A Symonds St Auckland 1010 New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland 1142 New Zealand
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17
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Jemas A, Xie Y, Pigga JE, Caplan JL, am Ende CW, Fox JM. Catalytic Activation of Bioorthogonal Chemistry with Light (CABL) Enables Rapid, Spatiotemporally Controlled Labeling and No-Wash, Subcellular 3D-Patterning in Live Cells Using Long Wavelength Light. J Am Chem Soc 2022; 144:1647-1662. [PMID: 35072462 PMCID: PMC9364228 DOI: 10.1021/jacs.1c10390] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Described is the spatiotemporally controlled labeling and patterning of biomolecules in live cells through the catalytic activation of bioorthogonal chemistry with light, referred to as "CABL". Here, an unreactive dihydrotetrazine (DHTz) is photocatalytically oxidized in the intracellular environment by ambient O2 to produce a tetrazine that immediately reacts with a trans-cyclooctene (TCO) dienophile. 6-(2-Pyridyl)dihydrotetrazine-3-carboxamides were developed as stable, cell permeable DHTz reagents that upon oxidation produce the most reactive tetrazines ever used in live cells with Diels-Alder kinetics exceeding k2 of 106 M-1 s-1. CABL photocatalysts are based on fluorescein or silarhodamine dyes with activation at 470 or 660 nm. Strategies for limiting extracellular production of singlet oxygen are described that increase the cytocompatibility of photocatalysis. The HaloTag self-labeling platform was used to introduce DHTz tags to proteins localized in the nucleus, mitochondria, actin, or cytoplasm, and high-yielding subcellular activation and labeling with a TCO-fluorophore were demonstrated. CABL is light-dose dependent, and two-photon excitation promotes CABL at the suborganelle level to selectively pattern live cells under no-wash conditions. CABL was also applied to spatially resolved live-cell labeling of an endogenous protein target by using TIRF microscopy to selectively activate intracellular monoacylglycerol lipase tagged with DHTz-labeled small molecule covalent inhibitor. Beyond spatiotemporally controlled labeling, CABL also improves the efficiency of "ordinary" tetrazine ligations by rescuing the reactivity of commonly used 3-aryl-6-methyltetrazine reporters that become partially reduced to DHTzs inside cells. The spatiotemporal control and fast rates of photoactivation and labeling of CABL should enable a range of biomolecular labeling applications in living systems.
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Affiliation(s)
- Andrew Jemas
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA
| | - Yixin Xie
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA
| | - Jessica E. Pigga
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA
| | - Jeffrey L. Caplan
- Department of Plant and Soil Sciences and Delaware Biotechnology Institute, University of Delaware, Newark, DE 19716, USA
| | - Christopher W. am Ende
- Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Joseph M. Fox
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA
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18
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An access to 1H-cyclopenta[b]pyridine-4,5-diones via condensation of 6-nitro-1,2-o-quinone with arylamines and acetone. Tetrahedron 2022. [DOI: 10.1016/j.tet.2021.132575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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19
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Abstract
Colchicine (1) is a bioactive plant alkaloid from Colchicum and Gloriosa species that is used as a pharmaceutical treatment for inflammatory diseases, including gouty arthritis and familial Mediterranean fever. The activity of this alkaloid is attributed to its ability to bind tubulin dimers and inhibit microtubule assembly, which not only promotes anti-inflammatory effects, but also makes colchicine a potent mitotic poison. The biochemical origins of colchicine biosynthesis have been investigated for over 50 years, but only recently has the underlying enzymatic machinery become clear. Here, we report the discovery of multiple pathway enzymes from Gloriosa superba that allows for the reconstitution of a complete metabolic route to 1. This includes three enzymes that process a previously established tropolone-containing intermediate into 1 via tailoring of the nitrogen atom. We further demonstrate the total biosynthesis of enantiopure (-)-1 from primary metabolites via heterologous production in a model plant, thus enabling future efforts for the metabolic engineering of this medicinal alkaloid. Additionally, our results provide insight into the timing and tissue specificity for the late stage modifications required in colchicine biosynthesis, which are likely connected to the biological functions for this class of medicinal alkaloids in native producing plants.
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Affiliation(s)
- Ryan S. Nett
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA
- Howard Hughes Medical Institute, Stanford, CA 94305, USA
| | - Elizabeth S. Sattely
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA
- Howard Hughes Medical Institute, Stanford, CA 94305, USA
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20
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Bruins J, Damen JAM, Wijdeven MA, Lelieveldt LPWM, van Delft FL, Albada B. Non-Genetic Generation of Antibody Conjugates Based on Chemoenzymatic Tyrosine Click Chemistry. Bioconjug Chem 2021; 32:2167-2172. [PMID: 34519477 PMCID: PMC8532111 DOI: 10.1021/acs.bioconjchem.1c00351] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 08/30/2021] [Indexed: 12/01/2022]
Abstract
The availability of tools to generate homogeneous and stable antibody conjugates without recombinant DNA technology is a valuable asset in fields spanning from in vitro diagnostics to in vivo imaging and therapeutics. We present here a general approach for the conjugation to human IgG1 antibodies, by employing a straightforward two-stage protocol based on antibody deglycosylation followed by tyrosinase-mediated ortho-quinone strain-promoted click chemistry. The technology is validated by the efficient and clean generation of highly potent DAR2 and DAR4 antibody-drug conjugates (ADCs) with cytotoxic payloads MMAE or PBD dimer, and their in vitro evaluation.
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Affiliation(s)
- Jorick
J. Bruins
- Laboratory
of Organic Chemistry, Wageningen University
& Research, Stippeneng 4, 6708 WE, Wageningen, The Netherlands
| | - Johannes A. M. Damen
- Laboratory
of Organic Chemistry, Wageningen University
& Research, Stippeneng 4, 6708 WE, Wageningen, The Netherlands
| | | | | | - Floris L. van Delft
- Laboratory
of Organic Chemistry, Wageningen University
& Research, Stippeneng 4, 6708 WE, Wageningen, The Netherlands
- Synaffix
BV, Kloosterstraat 9, 5349 AB, Oss, The Netherlands
| | - Bauke Albada
- Laboratory
of Organic Chemistry, Wageningen University
& Research, Stippeneng 4, 6708 WE, Wageningen, The Netherlands
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21
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Thoppe Sivakumar P, Puthiyaparambath S, Suresh Varma S, Parameswaran S, Kokkuvayil Vasu R. Organic Brønsted acid‐catalyzed cycloadditions of
o
‐quinone
methides with 1,
3‐dicarbonlys
: Facile access to xanthenones and chromanones. J Heterocycl Chem 2021. [DOI: 10.1002/jhet.4323] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Priyadarshini Thoppe Sivakumar
- Chemical Sciences and Technology Division CSIR‐National Institute for Interdisciplinary Science and Technology (CSIR‐NIIST) Thiruvananthapuram India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad India
| | - Sharathna Puthiyaparambath
- Chemical Sciences and Technology Division CSIR‐National Institute for Interdisciplinary Science and Technology (CSIR‐NIIST) Thiruvananthapuram India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad India
| | - Sanjay Suresh Varma
- Chemical Sciences and Technology Division CSIR‐National Institute for Interdisciplinary Science and Technology (CSIR‐NIIST) Thiruvananthapuram India
| | - Sasikumar Parameswaran
- Chemical Sciences and Technology Division CSIR‐National Institute for Interdisciplinary Science and Technology (CSIR‐NIIST) Thiruvananthapuram India
| | - Radhakrishnan Kokkuvayil Vasu
- Chemical Sciences and Technology Division CSIR‐National Institute for Interdisciplinary Science and Technology (CSIR‐NIIST) Thiruvananthapuram India
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22
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Wang C, Zhang H, Zhang T, Zou X, Wang H, Rosenberger J, Vannam R, Trout WS, Grimm JB, Lavis LD, Thorpe C, Jia X, Li Z, Fox JM. Enabling In Vivo Photocatalytic Activation of Rapid Bioorthogonal Chemistry by Repurposing Silicon-Rhodamine Fluorophores as Cytocompatible Far-Red Photocatalysts. J Am Chem Soc 2021; 143:10793-10803. [PMID: 34250803 PMCID: PMC8765119 DOI: 10.1021/jacs.1c05547] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Chromophores that absorb in the tissue-penetrant far-red/near-infrared window have long served as photocatalysts to generate singlet oxygen for photodynamic therapy. However, the cytotoxicity and side reactions associated with singlet oxygen sensitization have posed a problem for using long-wavelength photocatalysis to initiate other types of chemical reactions in biological environments. Herein, silicon-Rhodamine compounds (SiRs) are described as photocatalysts for inducing rapid bioorthogonal chemistry using 660 nm light through the oxidation of a dihydrotetrazine to a tetrazine in the presence of trans-cyclooctene dienophiles. SiRs have been commonly used as fluorophores for bioimaging but have not been applied to catalyze chemical reactions. A series of SiR derivatives were evaluated, and the Janelia Fluor-SiR dyes were found to be especially effective in catalyzing photooxidation (typically 3%). A dihydrotetrazine/tetrazine pair is described that displays high stability in both oxidation states. A protein that was site-selectively modified by trans-cyclooctene was quantitatively conjugated upon exposure to 660 nm light and a dihydrotetrazine. By contrast, a previously described methylene blue catalyst was found to rapidly degrade the protein. SiR-red light photocatalysis was used to cross-link hyaluronic acid derivatives functionalized by dihydrotetrazine and trans-cyclooctenes, enabling 3D culture of human prostate cancer cells. Photoinducible hydrogel formation could also be carried out in live mice through subcutaneous injection of a Cy7-labeled hydrogel precursor solution, followed by brief irradiation to produce a stable hydrogel. This cytocompatible method for using red light photocatalysis to activate bioorthogonal chemistry is anticipated to find broad applications where spatiotemporal control is needed in biological environments.
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Affiliation(s)
- Chuanqi Wang
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA
| | - He Zhang
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, USA
| | - Tao Zhang
- Department of Radiology and Biomedical Research Imaging Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - Xiaoyu Zou
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, USA
| | - Hui Wang
- Department of Radiology and Biomedical Research Imaging Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - Julia Rosenberger
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA
| | - Raghu Vannam
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA
| | - William S. Trout
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA
| | - Jonathan B. Grimm
- Janelia Research Campus, Howard Hughes Medical Institute, Ashburn Virginia, 20147, USA
| | - Luke D. Lavis
- Janelia Research Campus, Howard Hughes Medical Institute, Ashburn Virginia, 20147, USA
| | - Colin Thorpe
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA
| | - Xinqiao Jia
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, USA
- Delaware Biotechnology Institute, Newark, Delaware 19711, USA
| | - Zibo Li
- Department of Radiology and Biomedical Research Imaging Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - Joseph M. Fox
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, USA
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23
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Mouithys-Mickalad A, Storms N, Franck T, Ceusters J, de la Rebière de Pouyade G, Deby-Dupont G, Serteyn D. Effects of Juglone on Neutrophil Degranulation and Myeloperoxidase Activity Related to Equine Laminitis. Front Vet Sci 2021; 8:677675. [PMID: 34336974 PMCID: PMC8322847 DOI: 10.3389/fvets.2021.677675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 06/08/2021] [Indexed: 11/13/2022] Open
Abstract
Experimental laminitis, characterized by a failure of the dermal-epidermal interface of the foot, can be induced in horses by the oral administration of a black walnut extract (BWE). In the early phase of this severe and painful disease, an activation of neutrophil occurs, with the release of myeloperoxidase (MPO), a pro-oxidant enzyme of neutrophils, in plasma, skin, and laminar tissue. Juglone, a naphthoquinone derivative endowed with redox properties, is found in walnuts and has been incriminated in this neutrophil activation. We report for the first time the inhibitory activity of juglone on the degranulation of neutrophils induced by cytochalasin B and formyl-methionyl-leucyl-phenylalanine as monitored by the MPO release (>90% inhibition for 25 and 50 μM). Moreover, it also acts on the peroxidase activity of MPO by interacting with the intermediate "π cation radical," as evidenced by the classical and specific immunological extraction followed by enzymatic detection (SIEFED) assays. These results are confirmed by a docking study showing the perfect positioning of juglone in the MPO enzyme active site and its interaction with one of the amino acids (Arg-239) of MPO apoprotein. By chemiluminescence and electron paramagnetic resonance techniques, we demonstrated that juglone inhibited reactive oxygen species (ROS) and superoxide anion free radical produced from phorbol myristate acetate (PMA)-activated polymorphonuclear neutrophils (PMNs). These results indicate that juglone is not the trigger for equine laminitis, at least if we focus on the modulation of neutrophil activation.
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Affiliation(s)
| | - Nazaré Storms
- Department of Clinical Sciences, Equine Surgery, University of Liège, Liège, Belgium
| | - Thierry Franck
- Centre for Oxygen R&D, Institute of Chemistry, B6a, University of Liège, Liège, Belgium
| | - Justine Ceusters
- Centre for Oxygen R&D, Institute of Chemistry, B6a, University of Liège, Liège, Belgium
| | | | - Ginette Deby-Dupont
- Centre for Oxygen R&D, Institute of Chemistry, B6a, University of Liège, Liège, Belgium
| | - Didier Serteyn
- Centre for Oxygen R&D, Institute of Chemistry, B6a, University of Liège, Liège, Belgium.,Department of Clinical Sciences, Equine Surgery, University of Liège, Liège, Belgium
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24
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Abstract
Click chemistry has been established rapidly as one of the most valuable methods for the chemical transformation of complex molecules. Due to the rapid rates, clean conversions to the products, and compatibility of the reagents and reaction conditions even in complex settings, it has found applications in many molecule-oriented disciplines. From the vast landscape of click reactions, approaches have emerged in the past decade centered around oxidative processes to generate in situ highly reactive synthons from dormant functionalities. These approaches have led to some of the fastest click reactions know to date. Here, we review the various methods that can be used for such oxidation-induced "one-pot" click chemistry for the transformation of small molecules, materials, and biomolecules. A comprehensive overview is provided of oxidation conditions that induce a click reaction, and oxidation conditions are orthogonal to other click reactions so that sequential "click-oxidation-click" derivatization of molecules can be performed in one pot. Our review of the relevant literature shows that this strategy is emerging as a powerful approach for the preparation of high-performance materials and the generation of complex biomolecules. As such, we expect that oxidation-induced "one-pot" click chemistry will widen in scope substantially in the forthcoming years.
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Affiliation(s)
- Bauke Albada
- Laboratory of Organic Chemistry, Wageningen University & Research, Stippeneng 4, 6807 WE Wageningen, The Netherlands
| | - Jordi F Keijzer
- Laboratory of Organic Chemistry, Wageningen University & Research, Stippeneng 4, 6807 WE Wageningen, The Netherlands
| | - Han Zuilhof
- Laboratory of Organic Chemistry, Wageningen University & Research, Stippeneng 4, 6807 WE Wageningen, The Netherlands.,School of Pharmaceutical Sciences and Technology, Tianjin University, Tianjin 300072, China.,Department of Chemical and Materials Engineering, Faculty of Engineering, King Abdulaziz University, 21589 Jeddah, Saudi Arabia
| | - Floris van Delft
- Laboratory of Organic Chemistry, Wageningen University & Research, Stippeneng 4, 6807 WE Wageningen, The Netherlands.,Synaffix BV, Industrielaan 63, 5349 AE, Oss, The Netherlands
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25
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China CR, Nyandoro SS, Munissi JJE, Maguta MM, Meyer M, Schroepfer M. Tanning capacity of Tessmannia burttii extracts: the potential eco-friendly tanning agents for the leather industry. JOURNAL OF LEATHER SCIENCE AND ENGINEERING 2021. [DOI: 10.1186/s42825-021-00055-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Abstract
In the present study, the tannins from stem and root barks of Tessmannia burttii Harms (Caesalpiniaceae), a plant species abundantly growing in Tanzania and other parts of Africa, were investigated for their suitability in hides tanning. Tannin powder was extracted at selected temperatures (30, 50 and 80 °C) and the influence of each temperature on the crosslinking capacity was evaluated. The interaction mechanism between hide powder collagen and the tannins was studied by Differential Scanning Calorimetry (DSC), trinitrobenzensulfonic (TNBS) acid assay and amino acid hydrolysis methods. Extraction temperatures showed low influence on crosslinking capacity of the tannins. However, extract obtained at 50 °C exhibited best performance in terms of gap size between Tonset and Tpeak. The stem bark extract yield was higher than that from the root bark, but both were within the recommended ranges. The tannin content (61%) of T. burttii stem bark extract was above recommended value (10%), whereas its total phenolic content and total flavonoic content were found to be above that of commercial Acacia mearnsii tannin. The study of cross-linking parameters as a function of pH showed cross-linking to occur via a covalent mechanism at the basic amino groups. However, the bonds were not resistant to acid hydrolysis. The observed interaction mechanism indicated that tannins from stem and root barks of T. burttii belong to the condensed tannin, similar to A. mearnsii (black wattle), a commercial tannin source that was used in this study as a reference. Findings from this study depict that T. burttii extracts are auspicious eco-friendly alternative source of vegetable tannins to overcome the use of chromium salts in the leather industry.
Graphical abstract
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26
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Click chemistry strategies for the accelerated synthesis of functional macromolecules. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210126] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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27
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Osyanin VA, Lukashenko AV, Osipov DV. Cycloaddition reactions of o-quinone methides with polarized olefins. RUSSIAN CHEMICAL REVIEWS 2021. [DOI: 10.1070/rcr4971] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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28
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Jang J, Kim DY. Visible Light Photocatalytic Trifluoromethylation/SET Oxidation/Cycloaddition Sequences of 2‐Vinyl Phenols: Multicomponent Synthesis of 4
H
‐Chromenes. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100118] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Jihoon Jang
- Department of Chemistry and Department of ICT Environmental Health System Soonchunhyang University Asan 31538, Chungnam Republic of Korea
| | - Dae Young Kim
- Department of Chemistry and Department of ICT Environmental Health System Soonchunhyang University Asan 31538, Chungnam Republic of Korea
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29
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Xiao X, Wengryniuk SE. Recent Advances in the Selective Oxidative Dearomatization of Phenols to o-Quinones and o-Quinols with Hypervalent Iodine Reagents. Synlett 2021; 32:752-762. [PMID: 34334960 PMCID: PMC8323659 DOI: 10.1055/s-0037-1610760] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
ortho-Quinones are valuable molecular frameworks with diverse applications across biology, materials, organic synthesis, catalysis, and coordination chemistry. Despite their broad utility, their synthesis remains challenging, in particular via the direct oxidation of readily accessible phenols, due to the need to affect regioselective ortho oxidation coupled with the sensitivity of the resulting o-quinone products. The perspective looks at the emergence of I(V) hypervalent iodine reagents as an effective class of oxidants for regioselective o-quinone synthesis. The application of these reagents in regioselective phenol oxidation to both o-quinones and o-quinols will be discussed, including a recent report from our laboratory on the first method for the oxidation of electron-deficient phenols using a novel nitrogen-ligated I(V) reagent. Also included are select examples of total syntheses utilizing this methodology as well as recent advancements in chiral I(V) reagent design for asymmetric phenol dearomatization.
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Affiliation(s)
- Xiao Xiao
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, P. R. of China
- Department of Chemistry, Temple University, 1901 North 13 Street, Philadelphia, PA, 19122, USA
| | - Sarah E Wengryniuk
- Department of Chemistry, Temple University, 1901 North 13 Street, Philadelphia, PA, 19122, USA
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30
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Ivakhnenko E, Malay V, Romanenko G, Demidov O, Knyazev P, Starikov A, Minkin V. Michael addition of amines to sterically crowded ortho-benzoquinone completed with unprecedented 1,2-shift of a tert-butyl group. Tetrahedron 2021. [DOI: 10.1016/j.tet.2020.131841] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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31
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Escorihuela J, Looijen WJE, Wang X, Aquino AJA, Lischka H, Zuilhof H. Cycloaddition of Strained Cyclic Alkenes and Ortho-Quinones: A Distortion/Interaction Analysis. J Org Chem 2020; 85:13557-13566. [PMID: 33105075 PMCID: PMC7656516 DOI: 10.1021/acs.joc.0c01674] [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] [Indexed: 01/03/2023]
Abstract
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The
chemistry of strained unsaturated cyclic compounds has experienced
remarkable growth in recent years via the development of metal–free
click reactions. Among these reactions, the cycloaddition of cyclopropenes
and their analogues to ortho-quinones has been established
as a highly promising click reaction. The present work investigates
the mechanism involved in the cycloaddition of strained dienes to ortho-quinones and structural factors that would influence
this reaction. For this purpose, we use B97D density functional theory
calculations throughout, and for relevant cases, we use spin component–scaled
MP2 calculations and single–point domain-based local pair natural
orbital coupled cluster (DLPNO-CCSD(T)) calculations. The outcomes
are analyzed in detail using the distortion/interaction model, and
suggestions for future experimental work are made.
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Affiliation(s)
- Jorge Escorihuela
- Departament de Quı́mica Orgànica, Universitat de València, Av. Vicent Andrés Estellés s/n, 46100 Burjassot, Valencia, Spain
| | - Wilhelmus J E Looijen
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Xiao Wang
- School of Pharmaceutical Sciences and Technology, Tianjin University, Tianjin 300072, China
| | - Adelia J A Aquino
- School of Pharmaceutical Sciences and Technology, Tianjin University, Tianjin 300072, China.,Institute for Soil Research, University of Natural Resources and Life Sciences, Peter-Jordan-Strasse 82, A-1190 Vienna, Austria.,Department of Mechanical Engineering, Texas Tech University, Lubbock, Texas 79409, United States
| | - Hans Lischka
- School of Pharmaceutical Sciences and Technology, Tianjin University, Tianjin 300072, China.,Institute for Theoretical Chemistry, University of Vienna, Waehringerstrasse 17, A-1090 Vienna, Austria.,Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, United States
| | - Han Zuilhof
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6708 WE Wageningen, The Netherlands.,School of Pharmaceutical Sciences and Technology, Tianjin University, Tianjin 300072, China.,Department of Chemical and Materials Engineering, Faculty of Engineering, King Abdulaziz University, 21589 Jeddah, Saudi Arabia
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32
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Alvarez Dorta D, Deniaud D, Mével M, Gouin SG. Tyrosine Conjugation Methods for Protein Labelling. Chemistry 2020; 26:14257-14269. [DOI: 10.1002/chem.202001992] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 06/09/2020] [Indexed: 12/23/2022]
Affiliation(s)
| | - David Deniaud
- CNRS, CEISAM UMR, 6230 Université de Nantes 44000 Nantes France
| | - Mathieu Mével
- CHU de Nantes, INSERM UMR 1089 Université de Nantes 44200 Nantes France
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33
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Prasad Raiguru B, Nayak S, Ranjan Mishra D, Das T, Mohapatra S, Priyadarsini Mishra N. Synthetic Applications of Cyclopropene and Cyclopropenone: Recent Progress and Developments. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000193] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
| | - Sabita Nayak
- Department of ChemistryRavenshaw University Cuttack Odisha India
| | | | - Tapaswini Das
- Department of ChemistryRavenshaw University Cuttack Odisha India
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34
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Nguyen SS, Prescher JA. Developing bioorthogonal probes to span a spectrum of reactivities. Nat Rev Chem 2020; 4:476-489. [PMID: 34291176 DOI: 10.1038/s41570-020-0205-0] [Citation(s) in RCA: 96] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Bioorthogonal chemistries enable researchers to interrogate biomolecules in living systems. These reactions are highly selective and biocompatible and can be performed in many complex environments. However, like any organic transformation, there is no perfect bioorthogonal reaction. Choosing the "best fit" for a desired application is critical. Correspondingly, there must be a variety of chemistries-spanning a spectrum of rates and other features-to choose from. Over the past few years, significant strides have been made towards not only expanding the number of bioorthogonal chemistries, but also fine-tuning existing reactions for particular applications. In this Review, we highlight recent advances in bioorthogonal reaction development, focusing on how physical organic chemistry principles have guided probe design. The continued expansion of this toolset will provide more precisely tuned reagents for manipulating bonds in distinct environments.
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Affiliation(s)
- Sean S Nguyen
- Departments of Chemistry, University of California, Irvine, California 92697, United States
| | - Jennifer A Prescher
- Departments of Chemistry, University of California, Irvine, California 92697, United States.,Molecular Biology & Biochemistry, University of California, Irvine, California 92697, United States.,Pharmaceutical Sciences, University of California, Irvine, California 92697, United States
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35
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Liang DD, Streefkerk DE, Jordaan D, Wagemakers J, Baggerman J, Zuilhof H. Silicon-Free SuFEx Reactions of Sulfonimidoyl Fluorides: Scope, Enantioselectivity, and Mechanism. Angew Chem Int Ed Engl 2020; 59:7494-7500. [PMID: 32157791 PMCID: PMC7216998 DOI: 10.1002/anie.201915519] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 01/30/2020] [Indexed: 12/20/2022]
Abstract
SuFEx reactions, in which an S−F moiety reacts with a silyl‐protected phenol, have been developed as powerful click reactions. In the current paper we open up the potential of SuFEx reactions as enantioselective reactions, analyze the role of Si and outline the mechanism of this reaction. As a result, fast, high‐yielding, “Si‐free” and enantiospecific SuFEx reactions of sulfonimidoyl fluorides have been developed, and their mechanism shown, by both experimental and theoretical methods, to yield chiral products.
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Affiliation(s)
- Dong-Dong Liang
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6708WE, Wageningen, The Netherlands
| | - Dieuwertje E Streefkerk
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6708WE, Wageningen, The Netherlands
| | - Daan Jordaan
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6708WE, Wageningen, The Netherlands
| | - Jorden Wagemakers
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6708WE, Wageningen, The Netherlands
| | - Jacob Baggerman
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6708WE, Wageningen, The Netherlands
| | - Han Zuilhof
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6708WE, Wageningen, The Netherlands.,School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Tianjin, China.,Department of Chemical and Materials Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah, Saudi Arabia
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36
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Liang D, Streefkerk DE, Jordaan D, Wagemakers J, Baggerman J, Zuilhof H. Silicon‐Free SuFEx Reactions of Sulfonimidoyl Fluorides: Scope, Enantioselectivity, and Mechanism. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915519] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Dong‐Dong Liang
- Laboratory of Organic ChemistryWageningen University Stippeneng 4 6708WE Wageningen The Netherlands
| | - Dieuwertje E. Streefkerk
- Laboratory of Organic ChemistryWageningen University Stippeneng 4 6708WE Wageningen The Netherlands
| | - Daan Jordaan
- Laboratory of Organic ChemistryWageningen University Stippeneng 4 6708WE Wageningen The Netherlands
| | - Jorden Wagemakers
- Laboratory of Organic ChemistryWageningen University Stippeneng 4 6708WE Wageningen The Netherlands
| | - Jacob Baggerman
- Laboratory of Organic ChemistryWageningen University Stippeneng 4 6708WE Wageningen The Netherlands
| | - Han Zuilhof
- Laboratory of Organic ChemistryWageningen University Stippeneng 4 6708WE Wageningen The Netherlands
- School of Pharmaceutical Science and TechnologyTianjin University 92 Weijin Road Tianjin China
- Department of Chemical and Materials EngineeringFaculty of EngineeringKing Abdulaziz University Jeddah Saudi Arabia
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37
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Liu J, Cai L, Sun W, Cheng R, Wang N, Jin L, Rozovsky S, Seiple IB, Wang L. Photocaged Quinone Methide Crosslinkers for Light‐Controlled Chemical Crosslinking of Protein–Protein and Protein–DNA Complexes. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201910135] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jun Liu
- University of California, San Francisco Department of Pharmaceutical Chemistry and the Cardiovascular Research Institute 555 Mission Bay Blvd. South San Francisco CA 94158 USA
| | - Lingchao Cai
- University of California, San Francisco Department of Pharmaceutical Chemistry and the Cardiovascular Research Institute 555 Mission Bay Blvd. South San Francisco CA 94158 USA
| | - Wei Sun
- University of California, San Francisco Department of Pharmaceutical Chemistry and the Cardiovascular Research Institute 555 Mission Bay Blvd. South San Francisco CA 94158 USA
| | - Rujin Cheng
- University of Delaware Department of Chemistry and Biochemistry Newark DE 19716 USA
| | - Nanxi Wang
- University of California, San Francisco Department of Pharmaceutical Chemistry and the Cardiovascular Research Institute 555 Mission Bay Blvd. South San Francisco CA 94158 USA
| | - Ling Jin
- University of Florida Department of Microbiology and Cell Science Gainesville FL 32611 USA
| | - Sharon Rozovsky
- University of Delaware Department of Chemistry and Biochemistry Newark DE 19716 USA
| | - Ian B. Seiple
- University of California, San Francisco Department of Pharmaceutical Chemistry and the Cardiovascular Research Institute 555 Mission Bay Blvd. South San Francisco CA 94158 USA
| | - Lei Wang
- University of California, San Francisco Department of Pharmaceutical Chemistry and the Cardiovascular Research Institute 555 Mission Bay Blvd. South San Francisco CA 94158 USA
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38
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Liu J, Cai L, Sun W, Cheng R, Wang N, Jin L, Rozovsky S, Seiple IB, Wang L. Photocaged Quinone Methide Crosslinkers for Light-Controlled Chemical Crosslinking of Protein-Protein and Protein-DNA Complexes. Angew Chem Int Ed Engl 2019; 58:18839-18843. [PMID: 31644827 DOI: 10.1002/anie.201910135] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 10/14/2019] [Indexed: 01/24/2023]
Abstract
Small-molecule crosslinkers are invaluable for probing biomolecular interactions and for crosslinking mass spectrometry. Existing chemical crosslinkers target only a small selection of amino acids, while conventional photo-crosslinkers target almost all residues non-specifically, complicating data analysis. Herein, we report photocaged quinone methide (PQM)-based crosslinkers that target nine nucleophilic residues through Michael addition, including Gln, Arg, and Asn, which are inaccessible to existing chemical crosslinkers. PQM crosslinkers were used in vitro, in Escherichia coli, and in mammalian cells to crosslink dimeric proteins and endogenous membrane receptors. The heterobifunctional crosslinker NHQM could crosslink proteins to DNA, for which few crosslinkers exist. The photoactivatable reactivity of these crosslinkers and their ability to target multiple amino acids will enhance the use of chemical crosslinking for studies of protein-protein and protein-DNA networks and for structural biology.
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Affiliation(s)
- Jun Liu
- University of California, San Francisco, Department of Pharmaceutical Chemistry and the Cardiovascular Research Institute, 555 Mission Bay Blvd. South, San Francisco, CA, 94158, USA
| | - Lingchao Cai
- University of California, San Francisco, Department of Pharmaceutical Chemistry and the Cardiovascular Research Institute, 555 Mission Bay Blvd. South, San Francisco, CA, 94158, USA
| | - Wei Sun
- University of California, San Francisco, Department of Pharmaceutical Chemistry and the Cardiovascular Research Institute, 555 Mission Bay Blvd. South, San Francisco, CA, 94158, USA
| | - Rujin Cheng
- University of Delaware, Department of Chemistry and Biochemistry, Newark, DE, 19716, USA
| | - Nanxi Wang
- University of California, San Francisco, Department of Pharmaceutical Chemistry and the Cardiovascular Research Institute, 555 Mission Bay Blvd. South, San Francisco, CA, 94158, USA
| | - Ling Jin
- University of Florida, Department of Microbiology and Cell Science, Gainesville, FL, 32611, USA
| | - Sharon Rozovsky
- University of Delaware, Department of Chemistry and Biochemistry, Newark, DE, 19716, USA
| | - Ian B Seiple
- University of California, San Francisco, Department of Pharmaceutical Chemistry and the Cardiovascular Research Institute, 555 Mission Bay Blvd. South, San Francisco, CA, 94158, USA
| | - Lei Wang
- University of California, San Francisco, Department of Pharmaceutical Chemistry and the Cardiovascular Research Institute, 555 Mission Bay Blvd. South, San Francisco, CA, 94158, USA
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39
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Xiao X, Greenwood NS, Wengryniuk SE. Dearomatization of Electron-Deficient Phenols to ortho-Quinones: Bidentate Nitrogen-Ligated Iodine(V) Reagents. Angew Chem Int Ed Engl 2019; 58:16181-16187. [PMID: 31430009 PMCID: PMC6814494 DOI: 10.1002/anie.201909868] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Indexed: 01/13/2023]
Abstract
Despite their broad utility, the synthesis of ortho-quinones remains a significant challenge, in particular, access to electron-deficient derivatives remains an unsolved problem. Reported here is the first general method for the synthesis of electron-deficient ortho-quinones by direct oxidation of phenols. The reaction is enabled by a novel bidentate nitrogen-ligated iodine(V) reagent, a previously unexplored class of compounds which we have termed Bi(N)-HVIs. The reaction is extremely general and proceeds with excellent regioselectivity for the ortho over para isomer. Functionalization of the ortho-quinone products was examined, resulting in a facile one-pot synthesis of catechols, as well as the incorporation of a variety of heteroatom nucleophiles. This method represents the first synthetic application of Bi(N)-HVIs and demonstrates their potential as a platform for the further development of highly reactive, but also highly tunable, I(V) reagents.
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Affiliation(s)
- Xiao Xiao
- Department of Chemistry, Temple University, 1901 N. 13th St., Philadelphia, PA, 19122, USA
| | - Nathaniel S Greenwood
- Department of Chemistry, Temple University, 1901 N. 13th St., Philadelphia, PA, 19122, USA
- Present address: Department of Chemistry, Yale University, 225 Prospect St., New Haven, CT, 06520, USA
| | - Sarah E Wengryniuk
- Department of Chemistry, Temple University, 1901 N. 13th St., Philadelphia, PA, 19122, USA
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40
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Wang CY, Han JB, Wang L, Tang XY. Lewis Acid Catalyzed [4 + 2] Cycloaddition of N-Tosylhydrazones with ortho-Quinone Methides. J Org Chem 2019; 84:14258-14269. [PMID: 31599153 DOI: 10.1021/acs.joc.9b02040] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A formal [4 + 2] cycloaddition of N-tosylhydrazones with ortho-quinone methides was developed, affording the facile synthesis of diverse 1,3-oxazine derivatives under mild conditions. In this transformation, N-tosylhydrazones are used as a 1,2-dipole synthon under base-free conditions. Moreover, the substrate scope is broad, and the products are formed with high diastereoselectivities in most of the cases.
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Affiliation(s)
- Chun-Ying Wang
- School of Chemistry and Chemical Engineering, Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, Key Laboratory of Material Chemistry for Energy Conversion and Storage , Huazhong University of Science and Technology , 1037 Luoyu Road , Wuhan 430074 , People's Republic of China
| | - Jia-Bin Han
- School of Chemistry and Chemical Engineering, Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, Key Laboratory of Material Chemistry for Energy Conversion and Storage , Huazhong University of Science and Technology , 1037 Luoyu Road , Wuhan 430074 , People's Republic of China
| | - Long Wang
- School of Chemistry and Chemical Engineering, Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, Key Laboratory of Material Chemistry for Energy Conversion and Storage , Huazhong University of Science and Technology , 1037 Luoyu Road , Wuhan 430074 , People's Republic of China
| | - Xiang-Ying Tang
- School of Chemistry and Chemical Engineering, Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, Key Laboratory of Material Chemistry for Energy Conversion and Storage , Huazhong University of Science and Technology , 1037 Luoyu Road , Wuhan 430074 , People's Republic of China
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41
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Xiao X, Greenwood NS, Wengryniuk SE. Dearomatization of Electron‐Deficient Phenols to
ortho
‐Quinones: Bidentate Nitrogen‐Ligated Iodine(V) Reagents. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201909868] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Xiao Xiao
- Department of ChemistryTemple University 1901 N. 13th St. Philadelphia PA 19122 USA
| | - Nathaniel S. Greenwood
- Department of ChemistryTemple University 1901 N. 13th St. Philadelphia PA 19122 USA
- Present address: Department of ChemistryYale University 225 Prospect St. New Haven CT 06520 USA
| | - Sarah E. Wengryniuk
- Department of ChemistryTemple University 1901 N. 13th St. Philadelphia PA 19122 USA
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42
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Bruins J, van de Wouw C, Wagner K, Bartels L, Albada B, van Delft FL. Highly Efficient Mono-Functionalization of Knob-in-Hole Antibodies with Strain-Promoted Click Chemistry. ACS OMEGA 2019; 4:11801-11807. [PMID: 31460288 PMCID: PMC6682001 DOI: 10.1021/acsomega.9b01727] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 06/25/2019] [Indexed: 05/03/2023]
Abstract
Knob-in-hole antibodies can be utilized to introduce a single tag for chemo-enzymatic functionalization. By either introducing a single C-terminal sortase tag (sortase-tag expressed protein ligation) or tyrosine tag (G4Y), mono-functionalization of the monoclonal antibody trastuzumab was achieved rapidly and in high yields. This method was applied to selectively and efficiently introduce a single fluorescent tag, cytokine or single-chain variable fragment, as well as produce clean homo dimers of trastuzumab.
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Affiliation(s)
- Jorick
J. Bruins
- Laboratory
of Organic Chemistry, Wageningen University
& Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Criss van de Wouw
- Laboratory
of Organic Chemistry, Wageningen University
& Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Koen Wagner
- AIMM
Therapeutics, Meibergdreef
59, 1105 BA Amsterdam, The Netherlands
| | - Lina Bartels
- AIMM
Therapeutics, Meibergdreef
59, 1105 BA Amsterdam, The Netherlands
| | - Bauke Albada
- Laboratory
of Organic Chemistry, Wageningen University
& Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Floris L. van Delft
- Laboratory
of Organic Chemistry, Wageningen University
& Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands
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43
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Rebelein JG, Cotelle Y, Garabedian B, Ward TR. Chemical Optimization of Whole-Cell Transfer Hydrogenation Using Carbonic Anhydrase as Host Protein. ACS Catal 2019; 9:4173-4178. [PMID: 31080690 PMCID: PMC6503580 DOI: 10.1021/acscatal.9b01006] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 04/03/2019] [Indexed: 12/12/2022]
Abstract
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Artificial
metalloenzymes combine a synthetic metallocofactor with
a protein scaffold and can catalyze abiotic reactions in vivo. Herein, we report on our efforts to valorize human carbonic anhydrase
II as a scaffold for whole-cell transfer hydrogenation. Two platforms
were tested: periplasmic compartmentalization and surface display
in Escherichia coli. A chemical optimization of an
IrCp* cofactor was performed. This led to 90 turnovers in the cell,
affording a 69-fold increase in periplasmic product formation over
the previously reported, sulfonamide-bearing IrCp* cofactor. These
findings highlight the versatility of carbonic anhydrase as a promising
scaffold for whole-cell catalysis with artificial metalloenzymes.
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Affiliation(s)
- Johannes G. Rebelein
- Department of Chemistry, University of Basel, BPR 1096, Mattenstrasse 24a, 4058 Basel, Switzerland
| | - Yoann Cotelle
- Department of Chemistry, University of Basel, BPR 1096, Mattenstrasse 24a, 4058 Basel, Switzerland
| | - Brett Garabedian
- Department of Chemistry, University of Basel, BPR 1096, Mattenstrasse 24a, 4058 Basel, Switzerland
| | - Thomas R. Ward
- Department of Chemistry, University of Basel, BPR 1096, Mattenstrasse 24a, 4058 Basel, Switzerland
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44
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Khasiyatullina NR, Mironov VF, Voloshina AD, Sapunova AS. Synthesis and Antimicrobial Properties of Novel Phosphonium Salts Bearing 1,4-Dihydroxyaryl Fragment. Chem Biodivers 2019; 16:e1900039. [PMID: 30817850 DOI: 10.1002/cbdv.201900039] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 02/26/2019] [Indexed: 01/23/2023]
Abstract
A versatile two-step pathway to the synthesis of triaryl(2,5-dihydroxy-6-methyl-3-(propan-2-yl)phenyl)- and triaryl(1,4-dihydroxynaphthyl)phosphonium salts from triarylphosphonium trifluoroacetates was developed. The reaction proceeds under mild conditions (20 °C, CH2 Cl2 ) with high yields (88-95 %). Some representatives of this series possess low hemolytic and high bactericidal activity against Gram-positive bacteria.
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Affiliation(s)
- Nadezhda R Khasiyatullina
- FRC Kazan Scientific Center of RAS, A.E. Arbuzov Institute of Organic and Physical Chemistry, Arbuzov str. 8, Kazan, 420088, Russia
| | - Vladimir F Mironov
- FRC Kazan Scientific Center of RAS, A.E. Arbuzov Institute of Organic and Physical Chemistry, Arbuzov str. 8, Kazan, 420088, Russia
| | - Alexandra D Voloshina
- FRC Kazan Scientific Center of RAS, A.E. Arbuzov Institute of Organic and Physical Chemistry, Arbuzov str. 8, Kazan, 420088, Russia
| | - Anastasiya S Sapunova
- FRC Kazan Scientific Center of RAS, A.E. Arbuzov Institute of Organic and Physical Chemistry, Arbuzov str. 8, Kazan, 420088, Russia
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45
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Ahmad T, Suzuki YJ. Juglone in Oxidative Stress and Cell Signaling. Antioxidants (Basel) 2019; 8:antiox8040091. [PMID: 30959841 PMCID: PMC6523217 DOI: 10.3390/antiox8040091] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 03/23/2019] [Accepted: 04/01/2019] [Indexed: 12/22/2022] Open
Abstract
Juglone (5-hydroxyl-1,4-naphthoquinone) is a phenolic compound found in walnuts. Because of the antioxidant capacities of phenolic compounds, juglone may serve to combat oxidative stress, thereby protecting against the development of various diseases and aging processes. However, being a quinone molecule, juglone could also act as a redox cycling agent and produce reactive oxygen species. Such prooxidant properties of juglone may confer health effects, such as by killing cancer cells. Further, recent studies revealed that juglone influences cell signaling. Notably, juglone is an inhibitor of Pin1 (peptidyl-prolyl cis/trans isomerase) that could regulate phosphorylation of Tau, implicating potential effects of juglone in Alzheimer’s disease. Juglone also activates mitogen-activated protein kinases that could promote cell survival, thereby protecting against conditions such as cardiac injury. This review describes recent advances in the understanding of the effects and roles of juglone in oxidative stress and cell signaling.
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Affiliation(s)
- Taseer Ahmad
- College of Pharmacy, University of Sargodha, Sargodha, Punjab 40100, Pakistan.
| | - Yuichiro J Suzuki
- Department of Pharmacology and Physiology, Georgetown University Medical Center, Washington, DC 20007, USA.
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46
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Du JY, Ma YH, Meng FX, Zhang RR, Wang RN, Shi HL, Wang Q, Fan YX, Huang HL, Cui JC, Ma CL. Lewis Base-Catalyzed [4 + 3] Annulation of ortho-Quinone Methides and MBH Carbonates: Synthesis of Functionalized Benzo[b]oxepines Bearing Oxindole Scaffolds. Org Lett 2019; 21:465-468. [DOI: 10.1021/acs.orglett.8b03709] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Ji-Yuan Du
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China
| | - Yan-Hua Ma
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China
| | - Fan-Xiao Meng
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China
| | - Rui-Rui Zhang
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China
| | - Ruo-Nan Wang
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China
| | - Hong-Liang Shi
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China
| | - Qi Wang
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China
| | - Ya-Xin Fan
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China
| | - Hong-Li Huang
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China
| | - Ji-Chun Cui
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China
| | - Chun-Lin Ma
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China
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47
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Bruins JJ, van de Wouw C, Keijzer JF, Albada B, van Delft FL. Inducible, Selective Labeling of Proteins via Enzymatic Oxidation of Tyrosine. Methods Mol Biol 2019; 2012:357-368. [PMID: 31161517 DOI: 10.1007/978-1-4939-9546-2_18] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Proteins can be labeled site-specifically and in inducible fashion by exposing a small peptide tag (G4Y) on any of its termini and activating the newly exposed tyrosine residue with the enzyme mushroom tyrosinase. The enzyme generates a quinone by oxidizing the tyrosine, which in turn can perform strain-promoted oxidation-controlled ortho-quinone cycloaddition (SPOCQ) with strained alkynes and alkenes, generating a stable conjugation product. Here, we describe a protocol to perform SPOCQ reaction on proteins, along with notes to optimize yield and reaction rates. Conjugation efficiencies of over 95% to antibodies have been reported using this protocol.
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Affiliation(s)
- Jorick J Bruins
- Laboratory of Organic Chemistry, Wageningen University & Research, Wageningen, The Netherlands
| | - Criss van de Wouw
- Laboratory of Organic Chemistry, Wageningen University & Research, Wageningen, The Netherlands
| | - Jordi F Keijzer
- Laboratory of Organic Chemistry, Wageningen University & Research, Wageningen, The Netherlands
| | - Bauke Albada
- Laboratory of Organic Chemistry, Wageningen University & Research, Wageningen, The Netherlands.
| | - Floris L van Delft
- Laboratory of Organic Chemistry, Wageningen University & Research, Wageningen, The Netherlands.
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48
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He X, Choy PY, Leung MP, Yuen OY, Liu T, Shang Y, Kwong FY. A ZnI2-catalyzed regioselective cascade 1,4-conjugate addition/5-exo-dig annulation pathway for one-pot access to heterobiaryl frameworks. Chem Commun (Camb) 2019; 55:15069-15072. [DOI: 10.1039/c9cc07054k] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Facile access to π-extended heterobiaryl compounds via a non-cross-coupling strategy has been achieved.
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Affiliation(s)
- Xinwei He
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry
- The Chinese University of Hong Kong
- Shatin
- P. R. China
- Key Laboratory of Functional Molecular Solids
| | - Pui Ying Choy
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry
- The Chinese University of Hong Kong
- Shatin
- P. R. China
| | - Man Pan Leung
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry
- The Chinese University of Hong Kong
- Shatin
- P. R. China
| | - On Ying Yuen
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry
- The Chinese University of Hong Kong
- Shatin
- P. R. China
| | - Tianyi Liu
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry
- The Chinese University of Hong Kong
- Shatin
- P. R. China
| | - Yongjia Shang
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241000
| | - Fuk Yee Kwong
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry
- The Chinese University of Hong Kong
- Shatin
- P. R. China
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49
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Rajesh M, Singam MKR, Gadi RK, Sridhar Reddy M. 3-Heterosubstituted Benzofurans from Hydroxyphenyl Propargyl Alcohols via ortho-Quinone Methide through a Metal-/Catalyst-Free Conjugate Addition/Oxy-Cyclization. ACS OMEGA 2018; 3:17155-17163. [PMID: 31458335 PMCID: PMC6644147 DOI: 10.1021/acsomega.8b02480] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Accepted: 11/29/2018] [Indexed: 06/10/2023]
Abstract
A facile route to 3-sulfonylated and 3-(1-benzotriazolyl)-benzofurans is achieved from readily available o-hydroxyphenyl propargyl alcohols (o-HPPAs) and bench-top sodium sulfonylates and benzotriazoles with no assistance of any reagent or catalyst. Bifunctional o-quinone methides (o-QMs) were the putative reaction intermediates ensued from dehydration of o-HPPA. Our study revealed that the o-QM was so choosy in selection of the nucleophiles for the key Michael addition reaction.
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Affiliation(s)
- Manda Rajesh
- CSIR-Indian
Institute of Chemical Technology—OSPC Division, Hyderabad, Telengana 500007, India
- Academy
of Scientific and Innovative Research, New Delhi 110001, India
| | - Maneesh Kumar Reddy Singam
- CSIR-Indian
Institute of Chemical Technology—OSPC Division, Hyderabad, Telengana 500007, India
- Academy
of Scientific and Innovative Research, New Delhi 110001, India
| | - Ranjith Kumar Gadi
- CSIR-Indian
Institute of Chemical Technology—OSPC Division, Hyderabad, Telengana 500007, India
- Academy
of Scientific and Innovative Research, New Delhi 110001, India
| | - Maddi Sridhar Reddy
- CSIR-Indian
Institute of Chemical Technology—OSPC Division, Hyderabad, Telengana 500007, India
- Academy
of Scientific and Innovative Research, New Delhi 110001, India
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50
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Zhao J, Rebelein JG, Mallin H, Trindler C, Pellizzoni MM, Ward TR. Genetic Engineering of an Artificial Metalloenzyme for Transfer Hydrogenation of a Self-Immolative Substrate in Escherichia coli's Periplasm. J Am Chem Soc 2018; 140:13171-13175. [PMID: 30272972 DOI: 10.1021/jacs.8b07189] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Artificial metalloenzymes (ArMs), which combine an abiotic metal cofactor with a protein scaffold, catalyze various synthetically useful transformations. To complement the natural enzymes' repertoire, effective optimization protocols to improve ArM's performance are required. Here we report on our efforts to optimize the activity of an artificial transfer hydrogenase (ATHase) using Escherichia coli whole cells. For this purpose, we rely on a self-immolative quinolinium substrate which, upon reduction, releases fluorescent umbelliferone, thus allowing efficient screening. Introduction of a loop in the immediate proximity of the Ir-cofactor afforded an ArM with up to 5-fold increase in transfer hydrogenation activity compared to the wild-type ATHase using purified mutants.
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Affiliation(s)
- Jingming Zhao
- Department of Chemistry , University of Basel , Mattenstrasse 24a, BPR 1096 , CH-4058 Basel , Switzerland
| | - Johannes G Rebelein
- Department of Chemistry , University of Basel , Mattenstrasse 24a, BPR 1096 , CH-4058 Basel , Switzerland
| | - Hendrik Mallin
- Department of Chemistry , University of Basel , Mattenstrasse 24a, BPR 1096 , CH-4058 Basel , Switzerland
| | - Christian Trindler
- Department of Chemistry , University of Basel , Mattenstrasse 24a, BPR 1096 , CH-4058 Basel , Switzerland
| | - Michela M Pellizzoni
- Department of Chemistry , University of Basel , Mattenstrasse 24a, BPR 1096 , CH-4058 Basel , Switzerland
| | - Thomas R Ward
- Department of Chemistry , University of Basel , Mattenstrasse 24a, BPR 1096 , CH-4058 Basel , Switzerland
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