1
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Gwak S, Park JY, Cho M, Kwon HJ, Han H. Efficient and Inexpensive Synthesis of 15N-Labeled 2-Azido-1,3-dimethylimidazolinium Salts Using Na 15NO 2 Instead of Na 15NNN. ACS OMEGA 2024; 9:6556-6560. [PMID: 38371833 PMCID: PMC10870284 DOI: 10.1021/acsomega.3c07147] [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: 09/18/2023] [Revised: 11/09/2023] [Accepted: 11/17/2023] [Indexed: 02/20/2024]
Abstract
15N-Labeled azides are important probes for infrared and magnetic resonance spectroscopy and imaging. They can be synthesized by reaction of primary amines with a 15N-labeled diazo-transfer reagent. We present the synthesis of 15N-labeled 2-azido-1,3-dimethylimidazolinium salts 1 as a 15N-labeled diazo-transfer reagent. Nitrosation of 1,3-dimethylimidazolinium-2-yl hydrazine (2) with Na15NO2 under acidic conditions gave 1 as a 1:1 mixture of α- and γ-15N-labeled azides, α- and γ-1, rather than γ-1 alone. The isotopomeric mixture thus obtained was then subjected to the diazo-transfer reaction with primary amines 3 to afford azides 4 as a 1:1 mixture of β-15N-labeled azides β-4 and unlabeled ones 4'. The efficient and inexpensive synthesis of 1 as a 1:1 mixture of α- and γ-1 using Na15NO2 instead of Na15NNN facilitates their wide use as a 15N-labeled diazo-transfer reagent for preparing 15N-labeled azides as molecular probes.
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Affiliation(s)
- Sungduk Gwak
- Department
of Chemistry, Korea University, Seoul 02841, Korea
| | - Jun Young Park
- Department
of Chemistry, Korea University, Seoul 02841, Korea
- Center
for Molecular Spectroscopy and Dynamics, Institute for Basic Science (IBS), Seoul 02841, Korea
| | - Minhaeng Cho
- Department
of Chemistry, Korea University, Seoul 02841, Korea
- Center
for Molecular Spectroscopy and Dynamics, Institute for Basic Science (IBS), Seoul 02841, Korea
| | - Hyeok-Jun Kwon
- Department
of Chemistry, Korea University, Seoul 02841, Korea
| | - Hogyu Han
- Department
of Chemistry, Korea University, Seoul 02841, Korea
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2
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Kitamura M, Ohtsuka K, Eto T, Tsuzaki M, Wada M, Shimooka H, Okauchi T. Diazo-Transfer Reaction of Nonactivated Ketones with 2-Azido-1,3-bis(2,6-diisopropylphenyl)imidazolium Hexafluorophosphate (IPrAP). J Org Chem 2023; 88:15494-15500. [PMID: 37874046 DOI: 10.1021/acs.joc.3c01743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
The diazo-transfer reaction of nonactivated ketone under mild reaction conditions was developed. Various nonactivated ketones such as aryl methyl ketones, sec-alkyl methyl ketones, and cyclic ketones were transformed into their corresponding α-diazoketones in one step by treating 2-azido-1,3-bis(2,6-diisopropylphenyl)imidazolium hexafluorophosphate (IPrAP) in the presence of iPr2NH in ethylene glycol. In the reaction of IPrAP with prim-alkyl methyl ketone and prim-alkyl aryl ketones, migratory amidation proceeded under the reaction conditions to afford the corresponding amides.
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Affiliation(s)
- Mitsuru Kitamura
- Department of Applied Chemistry, Kyushu Institute of Technology, 1-1 Sensuicho, Tobata, Kitakyushu 804-8550, Japan
| | - Kazuki Ohtsuka
- Department of Applied Chemistry, Kyushu Institute of Technology, 1-1 Sensuicho, Tobata, Kitakyushu 804-8550, Japan
| | - Takashi Eto
- Department of Applied Chemistry, Kyushu Institute of Technology, 1-1 Sensuicho, Tobata, Kitakyushu 804-8550, Japan
| | - Masato Tsuzaki
- Department of Applied Chemistry, Kyushu Institute of Technology, 1-1 Sensuicho, Tobata, Kitakyushu 804-8550, Japan
| | - Mayuko Wada
- Department of Applied Chemistry, Kyushu Institute of Technology, 1-1 Sensuicho, Tobata, Kitakyushu 804-8550, Japan
| | - Hirokazu Shimooka
- Department of Applied Chemistry, Kyushu Institute of Technology, 1-1 Sensuicho, Tobata, Kitakyushu 804-8550, Japan
| | - Tatsuo Okauchi
- Department of Applied Chemistry, Kyushu Institute of Technology, 1-1 Sensuicho, Tobata, Kitakyushu 804-8550, Japan
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3
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Desiatkina O, Mösching M, Anghel N, Boubaker G, Amdouni Y, Hemphill A, Furrer J, Păunescu E. New Nucleic Base-Tethered Trithiolato-Bridged Dinuclear Ruthenium(II)-Arene Compounds: Synthesis and Antiparasitic Activity. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238173. [PMID: 36500266 PMCID: PMC9738179 DOI: 10.3390/molecules27238173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 11/18/2022] [Accepted: 11/22/2022] [Indexed: 11/25/2022]
Abstract
Aiming toward compounds with improved anti-Toxoplasma activity by exploiting the parasite auxotrophies, a library of nucleobase-tethered trithiolato-bridged dinuclear ruthenium(II)-arene conjugates was synthesized and evaluated. Structural features such as the type of nucleobase and linking unit were progressively modified. For comparison, diruthenium hybrids with other type of molecules were also synthesized and assessed. A total of 37 compounds (diruthenium conjugates and intermediates) were evaluated in a primary screening for in vitro activity against transgenic Toxoplasma gondii tachyzoites constitutively expressing β-galactosidase (T. gondii β-gal) at 0.1 and 1 µM. In parallel, the cytotoxicity in non-infected host cells (human foreskin fibroblasts, HFF) was determined by alamarBlue assay. Twenty compounds strongly impairing parasite proliferation with little effect on HFF viability were subjected to T. gondii β-gal half maximal inhibitory concentration determination (IC50) and their toxicity for HFF was assessed at 2.5 µM. Two promising compounds were identified: 14, ester conjugate with 9-(2-oxyethyl)adenine, and 36, a click conjugate bearing a 2-(4-(hydroxymethyl)-1H-1,2,3-triazol-1-yl)methyl substituent, with IC50 values of 0.059 and 0.111 µM respectively, significantly lower compared to pyrimethamine standard (IC50 = 0.326 µM). Both 14 and 36 exhibited low toxicity against HFF when applied at 2.5 µM and are candidates for potential treatment options in a suitable in vivo model.
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Affiliation(s)
- Oksana Desiatkina
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Martin Mösching
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Nicoleta Anghel
- Institute of Parasitology, Vetsuisse Faculty, University of Bern, Länggass-Strasse 122, 3012 Bern, Switzerland
| | - Ghalia Boubaker
- Institute of Parasitology, Vetsuisse Faculty, University of Bern, Länggass-Strasse 122, 3012 Bern, Switzerland
| | - Yosra Amdouni
- Institute of Parasitology, Vetsuisse Faculty, University of Bern, Länggass-Strasse 122, 3012 Bern, Switzerland
- Laboratoire de Parasitologie, Institution de la Recherche et de l'Enseignement Supérieur Agricoles, Université de la Manouba, École Nationale de Médecine Vétérinaire de Sidi Thabet, Sidi Thabet 2020, Tunisia
| | - Andrew Hemphill
- Institute of Parasitology, Vetsuisse Faculty, University of Bern, Länggass-Strasse 122, 3012 Bern, Switzerland
| | - Julien Furrer
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Emilia Păunescu
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
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4
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McGorman B, Fantoni NZ, O'Carroll S, Ziemele A, El-Sagheer AH, Brown T, Kellett A. Enzymatic Synthesis of Chemical Nuclease Triplex-Forming Oligonucleotides with Gene-Silencing Applications. Nucleic Acids Res 2022; 50:5467-5481. [PMID: 35640595 PMCID: PMC9177962 DOI: 10.1093/nar/gkac438] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 04/10/2022] [Accepted: 05/09/2022] [Indexed: 11/12/2022] Open
Abstract
Triplex-forming oligonucleotides (TFOs) are short, single-stranded oligomers that hybridise to a specific sequence of duplex DNA. TFOs can block transcription and thereby inhibit protein production, making them highly appealing in the field of antigene therapeutics. In this work, a primer extension protocol was developed to enzymatically prepare chemical nuclease TFO hybrid constructs, with gene-silencing applications. Click chemistry was employed to generate novel artificial metallo-nuclease (AMN)-dNTPs, which were selectively incorporated into the TFO strand by a DNA polymerase. This purely enzymatic protocol was then extended to facilitate the construction of 5-methylcytosine (5mC) modified TFOs that displayed increased thermal stability. The utility of the enzymatically synthesised di-(2-picolyl)amine (DPA)-TFOs was assessed and compared to a specifically prepared solid-phase synthesis counterpart through gel electrophoresis, quantitative PCR, and Sanger sequencing, which revealed similar recognition and damage properties to target genes. The specificity was then enhanced through coordinated designer intercalators-DPQ and DPPZ-and high-precision DNA cleavage was achieved. To our knowledge, this is the first example of the enzymatic production of an AMN-TFO hybrid and is the largest base modification incorporated using this method. These results indicate how chemical nuclease-TFOs may overcome limitations associated with non-molecularly targeted metallodrugs and open new avenues for artificial gene-editing technology.
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Affiliation(s)
- Bríonna McGorman
- School of Chemical Sciences and National Institute for Cellular Biotechnology, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Nicolò Zuin Fantoni
- Chemistry Research Laboratory, University of Oxford, South Parks Rd, Oxford, UK
| | - Sinéad O'Carroll
- School of Chemical Sciences and National Institute for Cellular Biotechnology, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Anna Ziemele
- School of Chemical Sciences and National Institute for Cellular Biotechnology, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Afaf H El-Sagheer
- Chemistry Research Laboratory, University of Oxford, South Parks Rd, Oxford, UK.,Department of Science and Mathematics, Suez University, Faculty of Petroleum and Mining, Engineering, Suez 43721, Egypt
| | - Tom Brown
- Chemistry Research Laboratory, University of Oxford, South Parks Rd, Oxford, UK
| | - Andrew Kellett
- School of Chemical Sciences and National Institute for Cellular Biotechnology, Dublin City University, Glasnevin, Dublin 9, Ireland.,SSPC, the Science Foundation Ireland Research Centre for Pharmaceuticals, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland
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5
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Maeng C, Ko GH, Yang H, Han SH, Han GU, Chan Noh H, Lee K, Kim D, Lee PH. Synthesis of o-Carborane-Fused Pyrazoles through Sequential C-N Bond Formation. Org Lett 2022; 24:3526-3531. [PMID: 35533400 DOI: 10.1021/acs.orglett.2c01232] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Transition-metal-free synthetic method for o-carborane-fused pyrazoles as a new scaffold has been developed from the reaction of B(4)-acylmethyl or B(3,5)-diacylmethyl o-carborane with 2-azido-1,3-dimethylimidazolinium hexafluorophosphate (ADMP) in the presence of DBU in acetonitrile through sequential diazotization and cyclization reaction in one pot, consequently allowing twofold C-N bond formation under extremely mild conditions and high functional group tolerance.
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Affiliation(s)
- Chanyoung Maeng
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Gi Hoon Ko
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Heejin Yang
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Sang Hoon Han
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Gi Uk Han
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Hee Chan Noh
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Kyungsup Lee
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Dongwook Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea.,Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Phil Ho Lee
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
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6
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Kupryushkin MS, Filatov AV, Mironova NL, Patutina OA, Chernikov IV, Chernolovskaya EL, Zenkova MA, Pyshnyi DV, Stetsenko DA, Altman S, Vlassov VV. Antisense oligonucleotide gapmers containing phosphoryl guanidine groups reverse MDR1-mediated multiple drug resistance of tumor cells. MOLECULAR THERAPY. NUCLEIC ACIDS 2022; 27:211-226. [PMID: 34976439 PMCID: PMC8693280 DOI: 10.1016/j.omtn.2021.11.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Accepted: 11/28/2021] [Indexed: 10/26/2022]
Abstract
Antisense gapmer oligonucleotides containing phosphoryl guanidine (PG) groups, e.g., 1,3-dimethylimidazolidin-2-imine, at three to five internucleotidic positions adjacent to the 3' and 5' ends were prepared via the Staudinger chemistry, which is compatible with conditions of standard automated solid-phase phosphoramidite synthesis for phosphodiester and, notably, phosphorothioate linkages, and allows one to design a variety of gapmeric structures with alternating linkages, and deoxyribose or 2'-O-methylribose backbone. PG modifications increased nuclease resistance in serum-containing medium for more than 21 days. Replacing two internucleotidic phosphates by PG groups in phosphorothioate-modified oligonucleotides did not decrease their cellular uptake in the absence of lipid carriers. Increasing the number of PG groups from two to seven per oligonucleotide reduced their ability to enter the cells in the carrier-free mode. Cationic liposomes provided similar delivery efficiency of both partially PG-modified and unmodified oligonucleotides. PG-gapmers were designed containing three to four PG groups at both wings and a central "window" of seven deoxynucleotides with either phosphodiester or phosphorothioate linkages targeted to MDR1 mRNA providing multiple drug resistance of tumor cells. Gapmers efficiently silenced MDR1 mRNA and restored the sensitivity of tumor cells to chemotherapeutics. Thus, PG-gapmers can be considered as novel, promising types of antisense oligonucleotides for targeting biologically relevant RNAs.
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Affiliation(s)
- Maxim S Kupryushkin
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev Ave., 8, Novosibirsk 630090, Russia
| | - Anton V Filatov
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev Ave., 8, Novosibirsk 630090, Russia
| | - Nadezhda L Mironova
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev Ave., 8, Novosibirsk 630090, Russia
| | - Olga A Patutina
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev Ave., 8, Novosibirsk 630090, Russia
| | - Ivan V Chernikov
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev Ave., 8, Novosibirsk 630090, Russia
| | - Elena L Chernolovskaya
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev Ave., 8, Novosibirsk 630090, Russia
| | - Marina A Zenkova
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev Ave., 8, Novosibirsk 630090, Russia
| | - Dmitrii V Pyshnyi
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev Ave., 8, Novosibirsk 630090, Russia
| | - Dmitry A Stetsenko
- Department of Physics, Novosibirsk State University, Pirogov Str. 2, Novosibirsk 630090, Russia.,Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Lavrentiev Ave. 10, Novosibirsk 630090, Russia
| | - Sidney Altman
- Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, CT 06520, USA.,Life Sciences, Arizona State University, Tempe, AZ 85281, USA.,Montreal Clinical Research Institute, Montreal QC H2W 1R7, Canada
| | - Valentin V Vlassov
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev Ave., 8, Novosibirsk 630090, Russia
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7
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Maryška M, Svobodová L, Dehaen W, Hrabinová M, Rumlová M, Soukup O, Kuchař M. Heterocyclic Cathinones as Inhibitors of Kynurenine Aminotransferase II-Design, Synthesis, and Evaluation. Pharmaceuticals (Basel) 2021; 14:ph14121291. [PMID: 34959692 PMCID: PMC8708382 DOI: 10.3390/ph14121291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 11/24/2021] [Accepted: 12/08/2021] [Indexed: 11/16/2022] Open
Abstract
Kynurenic acid is a neuroprotective metabolite of tryptophan formed by kynurenine aminotransferase (KAT) catalyzed transformation of kynurenine. However, its high brain levels are associated with cognitive deficit and with the pathophysiology of schizophrenia. Although several classes of KAT inhibitors have been published, the search for new inhibitor chemotypes is crucial for the process of finding suitable clinical candidates. Therefore, we used pharmacophore modeling and molecular docking, which predicted derivatives of heterocyclic amino ketones as new potential irreversible inhibitors of kynurenine aminotransferase II. Thiazole and triazole-based amino ketones were synthesized within a SAR study and their inhibitory activities were evaluated in vitro. The observed activities confirmed our computational model and, moreover, the best compounds showed sub-micromolar inhibitory activity with 2-alaninoyl-5-(4-fluorophenyl)thiazole having IC50 = 0.097 µM.
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Affiliation(s)
- Michal Maryška
- Forensic Laboratory of Biologically Active Substances, Department of Chemistry of Natural Compounds, Faculty of Food and Biochemical Technology, University of Chemistry and Technology Prague, Technická 5, 16628 Prague, Czech Republic; (M.M.); (L.S.)
- National Institute of Mental Health, Topolová 748, 250 67 Klecany, Czech Republic
| | - Lucie Svobodová
- Forensic Laboratory of Biologically Active Substances, Department of Chemistry of Natural Compounds, Faculty of Food and Biochemical Technology, University of Chemistry and Technology Prague, Technická 5, 16628 Prague, Czech Republic; (M.M.); (L.S.)
| | - Wim Dehaen
- CZ-OPENSCREEN: National Infrastructure for Chemical Biology, Department of Informatics and Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology Prague, Technická 5, 16628 Prague, Czech Republic;
| | - Martina Hrabinová
- Biomedical Research Center, University Hospital Hradec Králové, Sokolská 581, 50005 Hradec Kralové, Czech Republic; (M.H.); (O.S.)
- Department of Toxicology and Military Pharmacy, University of Defense, Třebešská 1575, 50005 Hradec Králové, Czech Republic
| | - Michaela Rumlová
- Department of Biotechnology, Faculty of Food and Biochemical Technology, University of Chemistry and Technology Prague, Technická 5, 16628 Prague, Czech Republic;
| | - Ondřej Soukup
- Biomedical Research Center, University Hospital Hradec Králové, Sokolská 581, 50005 Hradec Kralové, Czech Republic; (M.H.); (O.S.)
- Department of Toxicology and Military Pharmacy, University of Defense, Třebešská 1575, 50005 Hradec Králové, Czech Republic
| | - Martin Kuchař
- Forensic Laboratory of Biologically Active Substances, Department of Chemistry of Natural Compounds, Faculty of Food and Biochemical Technology, University of Chemistry and Technology Prague, Technická 5, 16628 Prague, Czech Republic; (M.M.); (L.S.)
- National Institute of Mental Health, Topolová 748, 250 67 Klecany, Czech Republic
- Correspondence: ; Tel.: +420-220-444-431
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8
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Singh T, Sahoo SC, Bharatam PV. Compound with possible N → N coordination bond: Synthesis, crystal structure and electronic structure analysis. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153246] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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9
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Fairbanks AJ. Applications of Shoda's reagent (DMC) and analogues for activation of the anomeric centre of unprotected carbohydrates. Carbohydr Res 2020; 499:108197. [PMID: 33256953 DOI: 10.1016/j.carres.2020.108197] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 11/10/2020] [Accepted: 11/11/2020] [Indexed: 10/23/2022]
Abstract
2-Chloro-1,3-dimethylimidazolinium chloride (DMC, herein also referred to as Shoda's reagent) and its derivatives are useful for numerous synthetic transformations in which the anomeric centre of unprotected reducing sugars is selectively activated in aqueous solution. As such unprotected sugars can undergo anomeric substitution with a range of added nucleophiles, providing highly efficient routes to a range of glycosides and glycoconjugates without the need for traditional protecting group manipulations. This mini-review summarizes the development of DMC and some of its derivatives/analogues, and highlights recent applications for protecting group-free synthesis.
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Affiliation(s)
- Antony J Fairbanks
- School of Physical and Chemical Sciences, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand.
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10
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Said Stålsmeden A, Paterson AJ, Szigyártó IC, Thunberg L, Johansson JR, Beke-Somfai T, Kann N. Chiral 1,5-disubstituted 1,2,3-triazoles - versatile tools for foldamers and peptidomimetic applications. Org Biomol Chem 2020; 18:1957-1967. [PMID: 32101244 DOI: 10.1039/d0ob00168f] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
1,4- and 1,5-Disubstituted triazole amino acid monomers have gained increasing interest among peptidic foldamers, as they are easily prepared via Cu- and Ru-catalyzed click reactions, with the potential for side chain variation. While the latter is key to their applicability, the synthesis and structural properties of the chiral mono- or disubstituted triazole amino acids have only been partially addressed. We here present the synthesis of all eight possible chiral derivatives of a triazole monomer prepared via a ruthenium-catalyzed azide alkyne cycloaddition (RuAAC). To evaluate the conformational properties of the individual building units, a systematic quantum chemical study was performed on all monomers, indicating their capacity to form several low energy conformers. This feature may be used to effect structural diversity when the monomers are inserted into various peptide sequences. We envisage that these results will facilitate new applications for these artificial oligomeric compounds in diverse areas, ranging from pharmaceutics to biotechnology.
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Affiliation(s)
- Anna Said Stålsmeden
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, SE-41296 Göteborg, Sweden.
| | - Andrew J Paterson
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, SE-41296 Göteborg, Sweden.
| | - Imola Cs Szigyártó
- Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok krt. 2, H-1117 Budapest, Hungary.
| | - Linda Thunberg
- Early Chemical Development, Pharmaceutical Sciences, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Johan R Johansson
- Medicinal Chemistry, Research and Early Development Cardiovascular, Renal and Metabolism, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden.
| | - Tamás Beke-Somfai
- Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok krt. 2, H-1117 Budapest, Hungary.
| | - Nina Kann
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, SE-41296 Göteborg, Sweden.
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11
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Green SP, Wheelhouse KM, Payne AD, Hallett JP, Miller PW, Bull JA. Thermal Stability and Explosive Hazard Assessment of Diazo Compounds and Diazo Transfer Reagents. Org Process Res Dev 2019; 24:67-84. [PMID: 31983869 PMCID: PMC6972035 DOI: 10.1021/acs.oprd.9b00422] [Citation(s) in RCA: 109] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Indexed: 11/29/2022]
Abstract
Despite their wide use in academia as metal-carbene precursors, diazo compounds are often avoided in industry owing to concerns over their instability, exothermic decomposition, and potential explosive behavior. The stability of sulfonyl azides and other diazo transfer reagents is relatively well understood, but there is little reliable data available for diazo compounds. This work first collates available sensitivity and thermal analysis data for diazo transfer reagents and diazo compounds to act as an accessible reference resource. Thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), and accelerating rate calorimetry (ARC) data for the model donor/acceptor diazo compound ethyl (phenyl)diazoacetate are presented. We also present a rigorous DSC dataset with 43 other diazo compounds, enabling direct comparison to other energetic materials to provide a clear reference work to the academic and industrial chemistry communities. Interestingly, there is a wide range of onset temperatures (T onset) for this series of compounds, which varied between 75 and 160 °C. The thermal stability variation depends on the electronic effect of substituents and the amount of charge delocalization. A statistical model is demonstrated to predict the thermal stability of differently substituted phenyl diazoacetates. A maximum recommended process temperature (T D24) to avoid decomposition is estimated for selected diazo compounds. The average enthalpy of decomposition (ΔH D) for diazo compounds without other energetic functional groups is -102 kJ mol-1. Several diazo transfer reagents are analyzed using the same DSC protocol and found to have higher thermal stability, which is in general agreement with the reported values. For sulfonyl azide reagents, an average ΔH D of -201 kJ mol-1 is observed. High-quality thermal data from ARC experiments shows the initiation of decomposition for ethyl (phenyl)diazoacetate to be 60 °C, compared to that of 100 °C for the common diazo transfer reagent p-acetamidobenzenesulfonyl azide (p-ABSA). The Yoshida correlation is applied to DSC data for each diazo compound to provide an indication of both their impact sensitivity (IS) and explosivity. As a neat substance, none of the diazo compounds tested are predicted to be explosive, but many (particularly donor/acceptor diazo compounds) are predicted to be impact-sensitive. It is therefore recommended that manipulation, agitation, and other processing of neat diazo compounds are conducted with due care to avoid impacts, particularly in large quantities. The full dataset is presented to inform chemists of the nature and magnitude of hazards when using diazo compounds and diazo transfer reagents. Given the demonstrated potential for rapid heat generation and gas evolution, adequate temperature control and cautious addition of reagents that begin a reaction are strongly recommended when conducting reactions with diazo compounds.
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Affiliation(s)
- Sebastian P Green
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, 80 Wood Lane, London W12 0BZ, U.K.,Department of Chemical Engineering, Imperial College London, South Kensington Campus, Exhibition Road, London SW7 2AZ, U.K
| | - Katherine M Wheelhouse
- API Chemistry, Product Development & Supply and Process Safety, Pilot Plant Operations, GlaxoSmithKline, GSK Medicines Research Centre, Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, U.K
| | - Andrew D Payne
- API Chemistry, Product Development & Supply and Process Safety, Pilot Plant Operations, GlaxoSmithKline, GSK Medicines Research Centre, Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, U.K
| | - Jason P Hallett
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, Exhibition Road, London SW7 2AZ, U.K
| | - Philip W Miller
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, 80 Wood Lane, London W12 0BZ, U.K
| | - James A Bull
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, 80 Wood Lane, London W12 0BZ, U.K
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12
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Kitamura M, Murakami K, Koga T, Eto T, Ishikawa A, Shimooka H, Okauchi T. Direct Azidation of Phenols. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900967] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Mitsuru Kitamura
- Kyushu Institute of Technology; Department Applied Chemistry; 1-1 Sensuicho 804-8550 Tobata, Kitakyushu Japan
| | - Kento Murakami
- Kyushu Institute of Technology; Department Applied Chemistry; 1-1 Sensuicho 804-8550 Tobata, Kitakyushu Japan
| | - Tatsuya Koga
- Kyushu Institute of Technology; Department Applied Chemistry; 1-1 Sensuicho 804-8550 Tobata, Kitakyushu Japan
| | - Takashi Eto
- Kyushu Institute of Technology; Department Applied Chemistry; 1-1 Sensuicho 804-8550 Tobata, Kitakyushu Japan
| | - Akihiro Ishikawa
- Kyushu Institute of Technology; Department Applied Chemistry; 1-1 Sensuicho 804-8550 Tobata, Kitakyushu Japan
| | - Hirokazu Shimooka
- Kyushu Institute of Technology; Department Applied Chemistry; 1-1 Sensuicho 804-8550 Tobata, Kitakyushu Japan
| | - Tatsuo Okauchi
- Kyushu Institute of Technology; Department Applied Chemistry; 1-1 Sensuicho 804-8550 Tobata, Kitakyushu Japan
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13
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Arunachalam PN, Kuppusamy P, Ganesan S, Krishnamoorthy S, Nimje RY, Jarugu LB, Kanikahalli Chikkananjaiah N, Anki Reddy C, Anjanappa P, Botlagunta M, Vanteru S, Maddala N, Shankar M, Nair S, Hynes J, Santella JB, Carter PH, Rampulla R, Vetrichelvan M, Gupta A, Gupta AK, Mathur A. Development of a Scalable Synthesis for the Potent Kinase Inhibitor BMS-986236; 1-(5-(4-(3-Hydroxy-3-methylbutyl)-1H-1,2,3-triazol-1-yl)-4-(isopropylamino)pyridin-2-yl)-1H-pyrazolo[3,4-b]pyridine-5-carbonitrile. Org Process Res Dev 2019. [DOI: 10.1021/acs.oprd.9b00023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Pirama Nayagam Arunachalam
- Department of Discovery Synthesis, Biocon Bristol-Myers Squibb Research Center, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore-560 099, India
| | - Prakasam Kuppusamy
- Department of Discovery Synthesis, Biocon Bristol-Myers Squibb Research Center, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore-560 099, India
| | - Sivakumar Ganesan
- Department of Discovery Synthesis, Biocon Bristol-Myers Squibb Research Center, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore-560 099, India
| | - Suresh Krishnamoorthy
- Department of Discovery Synthesis, Biocon Bristol-Myers Squibb Research Center, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore-560 099, India
| | - Roshan Y. Nimje
- Department of Discovery Synthesis, Biocon Bristol-Myers Squibb Research Center, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore-560 099, India
| | - Lokesh Babu Jarugu
- Department of Discovery Synthesis, Biocon Bristol-Myers Squibb Research Center, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore-560 099, India
| | | | - China Anki Reddy
- Department of Discovery Synthesis, Biocon Bristol-Myers Squibb Research Center, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore-560 099, India
| | - Prakash Anjanappa
- Department of Discovery Synthesis, Biocon Bristol-Myers Squibb Research Center, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore-560 099, India
| | - Murali Botlagunta
- Department of Discovery Synthesis, Biocon Bristol-Myers Squibb Research Center, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore-560 099, India
| | - Sridhar Vanteru
- Department of Discovery Synthesis, Biocon Bristol-Myers Squibb Research Center, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore-560 099, India
| | - Nageswararao Maddala
- Department of Discovery Synthesis, Biocon Bristol-Myers Squibb Research Center, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore-560 099, India
| | - Muniyappa Shankar
- Department of Discovery Synthesis, Biocon Bristol-Myers Squibb Research Center, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore-560 099, India
| | - Satheesh Nair
- Department of Discovery Synthesis, Biocon Bristol-Myers Squibb Research Center, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore-560 099, India
| | - John Hynes
- Discovery Chemistry, Bristol-Myers Squibb, P.O. Box 5400, Princeton, New Jersey 08543-4000, United States
| | - Joseph B. Santella
- Discovery Chemistry, Bristol-Myers Squibb, P.O. Box 5400, Princeton, New Jersey 08543-4000, United States
| | - Percy H. Carter
- Discovery Chemistry, Bristol-Myers Squibb, P.O. Box 5400, Princeton, New Jersey 08543-4000, United States
| | - Richard Rampulla
- Discovery Chemistry, Bristol-Myers Squibb, P.O. Box 5400, Princeton, New Jersey 08543-4000, United States
| | - Muthalagu Vetrichelvan
- Department of Discovery Synthesis, Biocon Bristol-Myers Squibb Research Center, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore-560 099, India
| | - Anuradha Gupta
- Department of Discovery Synthesis, Biocon Bristol-Myers Squibb Research Center, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore-560 099, India
| | - Arun Kumar Gupta
- Department of Discovery Synthesis, Biocon Bristol-Myers Squibb Research Center, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore-560 099, India
| | - Arvind Mathur
- Discovery Chemistry, Bristol-Myers Squibb, P.O. Box 5400, Princeton, New Jersey 08543-4000, United States
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14
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Jinks MA, de Juan A, Denis M, Fletcher CJ, Galli M, Jamieson EMG, Modicom F, Zhang Z, Goldup SM. Stereoselective Synthesis of Mechanically Planar Chiral Rotaxanes. Angew Chem Int Ed Engl 2018; 57:14806-14810. [PMID: 30253008 PMCID: PMC6220991 DOI: 10.1002/anie.201808990] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Indexed: 01/14/2023]
Abstract
Chiral interlocked molecules in which the mechanical bond provides the sole stereogenic unit are typically produced with no control over the mechanical stereochemistry. Here we report a stereoselective approach to mechanically planar chiral rotaxanes in up to 98:2 d.r. using a readily available α-amino acid-derived azide. Symmetrization of the covalent stereocenter yields a rotaxane in which the mechanical bond provides the only stereogenic element.
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Affiliation(s)
- Michael A. Jinks
- ChemistryUniversity of Southampton, HighfieldSouthamptonSO17 1BJUK
| | - Alberto de Juan
- ChemistryUniversity of Southampton, HighfieldSouthamptonSO17 1BJUK
| | - Mathieu Denis
- ChemistryUniversity of Southampton, HighfieldSouthamptonSO17 1BJUK
| | | | - Marzia Galli
- ChemistryUniversity of Southampton, HighfieldSouthamptonSO17 1BJUK
| | | | - Florian Modicom
- ChemistryUniversity of Southampton, HighfieldSouthamptonSO17 1BJUK
| | - Zhihui Zhang
- ChemistryUniversity of Southampton, HighfieldSouthamptonSO17 1BJUK
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15
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Jinks MA, de Juan A, Denis M, Fletcher CJ, Galli M, Jamieson EMG, Modicom F, Zhang Z, Goldup SM. Stereoselective Synthesis of Mechanically Planar Chiral Rotaxanes. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201808990] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Michael A. Jinks
- Chemistry; University of Southampton, Highfield; Southampton SO17 1BJ UK
| | - Alberto de Juan
- Chemistry; University of Southampton, Highfield; Southampton SO17 1BJ UK
| | - Mathieu Denis
- Chemistry; University of Southampton, Highfield; Southampton SO17 1BJ UK
| | | | - Marzia Galli
- Chemistry; University of Southampton, Highfield; Southampton SO17 1BJ UK
| | | | - Florian Modicom
- Chemistry; University of Southampton, Highfield; Southampton SO17 1BJ UK
| | - Zhihui Zhang
- Chemistry; University of Southampton, Highfield; Southampton SO17 1BJ UK
| | - Stephen M. Goldup
- Chemistry; University of Southampton, Highfield; Southampton SO17 1BJ UK
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16
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Zeng C, Hu F, Long R, Min W. A ratiometric Raman probe for live-cell imaging of hydrogen sulfide in mitochondria by stimulated Raman scattering. Analyst 2018; 143:4844-4848. [PMID: 30246812 PMCID: PMC6249677 DOI: 10.1039/c8an00910d] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Stimulated Raman Scattering (SRS) coupled with alkyne tags has been an emerging imaging technique to visualize small-molecule species with high sensitivity and specificity. Here we describe the development of a ratiometric Raman probe for visualizing hydrogen sulfide (H2S) species in living cells as the first alkyne-based sensor for SRS microscopy. This probe uses an azide unit as a selective reactive site, and it targets mitochondria with high specificity. The SRS ratiometric images show a strong response to H2S level changes in living cells.
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Affiliation(s)
- Chen Zeng
- Department of chemistry, Columbia University, 3000 Broadway, New York, NY 10027, USA.
| | - Fanghao Hu
- Department of chemistry, Columbia University, 3000 Broadway, New York, NY 10027, USA.
| | - Rong Long
- Department of chemistry, Columbia University, 3000 Broadway, New York, NY 10027, USA.
| | - Wei Min
- Department of chemistry, Columbia University, 3000 Broadway, New York, NY 10027, USA.
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17
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Dou Y, Yin B, Zhang P, Zhu Q. Copper-Catalyzed Regioselective Nitration and Azidation of 1-Naphthylamine Derivatives via Remote C-H Activation. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800912] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yandong Dou
- College of Biotechnology and Bioengineering; Zhejiang University of Technology; 310014 Hangzhou China
- Collaborative Innovation Center of Yangtze River Delta Region GreenPharmaceuticals; Zhejiang University of Technology; 310014 Hangzhou China
| | - Biao Yin
- Collaborative Innovation Center of Yangtze River Delta Region GreenPharmaceuticals; Zhejiang University of Technology; 310014 Hangzhou China
| | - Pengfei Zhang
- College of Material; Chemistry and Chemical Engineering; Hangzhou Normal University; Hangzhou China
| | - Qing Zhu
- College of Biotechnology and Bioengineering; Zhejiang University of Technology; 310014 Hangzhou China
- Collaborative Innovation Center of Yangtze River Delta Region GreenPharmaceuticals; Zhejiang University of Technology; 310014 Hangzhou China
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18
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BURTOLOSO ANTONIOC, MOMO PATRÍCIAB, NOVAIS GRAZIELEL. Traditional and New methods for the Preparation of Diazocarbonyl Compounds. ACTA ACUST UNITED AC 2018; 90:859-893. [DOI: 10.1590/0001-3765201820170768] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 11/16/2017] [Indexed: 12/14/2022]
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19
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Yu Y, Sha Q, Cui H, Chandler KS, Doyle MP. Displacement of Dinitrogen by Oxygen: A Methodology for the Catalytic Conversion of Diazocarbonyl Compounds to Ketocarbonyl Compounds by 2,6-Dichloropyridine-N-oxide. Org Lett 2018; 20:776-779. [DOI: 10.1021/acs.orglett.7b03912] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yang Yu
- Department
of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Qiang Sha
- Department
of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing, China 210095
| | - Hui Cui
- Department
of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Kory S. Chandler
- Department
of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Michael P. Doyle
- Department
of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
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20
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Alexander SR, Williams GM, Brimble MA, Fairbanks AJ. A double-click approach to the protecting group free synthesis of glycoconjugates. Org Biomol Chem 2018; 16:1258-1262. [DOI: 10.1039/c8ob00072g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The use of a bi-functional linker, containing an alkyne and an alkene, allows the protecting group free conjugation of reducing sugars to thiols via a double click process.
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Affiliation(s)
- S. R. Alexander
- Department of Chemistry
- University of Canterbury
- Christchurch 8140
- New Zealand
| | - G. M. Williams
- School of Chemical Sciences
- The University of Auckland
- Auckland 1142
- New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery
| | - M. A. Brimble
- School of Chemical Sciences
- The University of Auckland
- Auckland 1142
- New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery
| | - A. J. Fairbanks
- Department of Chemistry
- University of Canterbury
- Christchurch 8140
- New Zealand
- Biomolecular Interaction Centre
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21
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Klaehn JR, Rollins HW, McNally JS, Arulsamy N, Dufek EJ. Phosphoranimines containing cationic N-imidazolinium moieties. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.05.075] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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22
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Depaix A, Peyrottes S, Roy B. Water-Medium Synthesis of Nucleoside 5'-Polyphosphates. ACTA ACUST UNITED AC 2017. [PMID: 28628206 DOI: 10.1002/cpnc.30] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
This unit describes a one-pot, two step synthesis of ribonucleoside 5'-di- and 5'-triphosphates, as well as their purification. The first step of the synthesis involves the activation of an unprotected ribonucleoside 5'-monophosphate with 2-chloro-1,3-dimethylimidazolinium hexafluorophosphate and imidazole, in a mixture of water/acetonitrile. The resulting phosphorimidazolate intermediate is then treated with inorganic phosphate or pyrophosphate to afford the corresponding nucleoside 5'-di- or 5'-triphosphates. The attractive features of this strategy include the absence of protecting groups on the starting material and convenient set up (i.e., use of water, non-dry solvents and reagents, commercially available sodium salts). © 2017 by John Wiley & Sons, Inc.
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Affiliation(s)
- Anaïs Depaix
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247 CNRS, Université de Montpellier, ENSCM, Campus Triolet, Montpellier, France
| | - Suzanne Peyrottes
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247 CNRS, Université de Montpellier, ENSCM, Campus Triolet, Montpellier, France
| | - Béatrice Roy
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247 CNRS, Université de Montpellier, ENSCM, Campus Triolet, Montpellier, France
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23
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McCaw PG, Buckley NM, Eccles KS, Lawrence SE, Maguire AR, Collins SG. Synthesis of Cyclic α-Diazo-β-keto Sulfoxides in Batch and Continuous Flow. J Org Chem 2017; 82:3666-3679. [PMID: 28272889 DOI: 10.1021/acs.joc.7b00172] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Diazo transfer to β-keto sulfoxides to form stable isolable α-diazo-β-keto sulfoxides has been achieved for the first time. Both monocyclic and benzofused ketone derived β-keto sulfoxides were successfully explored as substrates for diazo transfer. Use of continuous flow leads to isolation of the desired compounds in enhanced yields relative to standard batch conditions, with short reaction times, increased safety profile, and potential to scale up.
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Affiliation(s)
- Patrick G McCaw
- Department of Chemistry, Analytical and Biological Chemistry Research Facility, Synthesis and Solid State Pharmaceutical Centre, University College Cork , Cork, Ireland
| | - Naomi M Buckley
- Department of Chemistry, Analytical and Biological Chemistry Research Facility, Synthesis and Solid State Pharmaceutical Centre, University College Cork , Cork, Ireland
| | - Kevin S Eccles
- Department of Chemistry, Analytical and Biological Chemistry Research Facility, Synthesis and Solid State Pharmaceutical Centre, University College Cork , Cork, Ireland
| | - Simon E Lawrence
- Department of Chemistry, Analytical and Biological Chemistry Research Facility, Synthesis and Solid State Pharmaceutical Centre, University College Cork , Cork, Ireland
| | - Anita R Maguire
- Department of Chemistry and School of Pharmacy, Analytical and Biological Chemistry Research Facility, Synthesis and Solid State Pharmaceutical Centre, University College Cork , Cork, Ireland
| | - Stuart G Collins
- Department of Chemistry, Analytical and Biological Chemistry Research Facility, Synthesis and Solid State Pharmaceutical Centre, University College Cork , Cork, Ireland
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24
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Godoy Prieto L, Lo Fiego MJ, Chopa AB, Lockhart MT. A reliable one-pot synthesis of aryl azides from aryl amines using organotin azides as effective and recoverable reagents. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2016.11.037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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25
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Alexander SR, Lim D, Amso Z, Brimble MA, Fairbanks AJ. Protecting group free synthesis of glycosyl thiols from reducing sugars in water; application to the production of N-glycan glycoconjugates. Org Biomol Chem 2017; 15:2152-2156. [DOI: 10.1039/c7ob00112f] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Un-protected 2-acetamido terminated reducing sugars may be converted into the corresponding glycosyl thiols in water, and conjugated to peptides using the thiol–ene click reaction without recourse to any protecting groups.
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Affiliation(s)
- S. R. Alexander
- Department of Chemistry
- University of Canterbury
- Christchurch 8140
- New Zealand
| | - D. Lim
- Department of Chemistry
- University of Canterbury
- Christchurch 8140
- New Zealand
| | - Z. Amso
- School of Chemical Sciences
- The University of Auckland
- Auckland 1142
- New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery
| | - M. A. Brimble
- School of Chemical Sciences
- The University of Auckland
- Auckland 1142
- New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery
| | - A. J. Fairbanks
- Department of Chemistry
- University of Canterbury
- Christchurch 8140
- New Zealand
- Biomolecular Interaction Centre
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26
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Kitamura M. Azidoimidazolinium Salts: Safe and Efficient Diazo-transfer Reagents and Unique Azido-donors. CHEM REC 2016; 17:653-666. [PMID: 28000372 DOI: 10.1002/tcr.201600118] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Indexed: 11/06/2022]
Abstract
2-Azido-1,3-dimethylimidazolinium chloride (ADMC) and its corresponding hexafluorophosphate (ADMP) were found to be efficient diazo-transfer reagents to various organic compounds. ADMC was prepared by the reaction of 2-chloro-1,3-dimethylimidazolinium chloride (DMC) and sodium azide. ADMP was isolated as a crystal having good thermal stability and low explosibility. ADMC and ADMP reacted with 1,3-dicarbonyl compounds under mild basic conditions to give 2-diazo-1,3-dicarbonyl compounds in high yields, which were easily isolated in virtue of the high water solubility of the by-products. ADMP showed high diazo-transfer ability to primary amines even in the absence of metal salt such as Cu(II). Using this diazotization approach, various alkyl/aryl azides were directly obtained from their corresponding primary amines in high yields. Furthermore, naphthols reacted with ADMC to give the corresponding diazonaphthoquinones in good to high yields. In addition, 2-azido-1,3-dimethylimidazolinium salts were employed as azide-transfer and migratory amidation reagents.
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Affiliation(s)
- Mitsuru Kitamura
- Department Applied Chemistry, Kyushu Institute of Technology, 1-1 Sensuicho, Tobata, Kitakyushu, 804-8550, Japan
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27
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Junker AKR, Tropiano M, Faulkner S, Sørensen TJ. Kinetically Inert Lanthanide Complexes as Reporter Groups for Binding of Potassium by 18-crown-6. Inorg Chem 2016; 55:12299-12308. [DOI: 10.1021/acs.inorgchem.6b02063] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Anne Kathrine R Junker
- Nano-Science Center & Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 København Ø, Copenhagen, Denmark
- Chemistry
Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, U. K
| | - Manuel Tropiano
- Chemistry
Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, U. K
| | - Stephen Faulkner
- Chemistry
Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, U. K
| | - Thomas Just Sørensen
- Nano-Science Center & Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 København Ø, Copenhagen, Denmark
- Chemistry
Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, U. K
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28
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Laus G, Kostner ME, Kahlenberg V, Schottenberger H. Synthesis and reactions of 2-azido-1,3-di(benzyloxy)imidazolium hexafluoridophosphate. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2016. [DOI: 10.1515/znb-2016-0104] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
2-Azido-1,3-di(benzyloxy)imidazolium hexafluoridophosphate was obtained from the corresponding 2-bromo compound by reaction with sodium azide. Cycloaddition of the 2-azido compound with norbornene and norbornadiene gave the respective tricyclic aziridine and bicyclic azaoctadiene. Addition of triphenylphosphane yielded the phosphazide which upon heating eliminated dinitrogen to afford the phosphazene. The crystal structures of five compounds were determined by X-ray diffraction.
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Affiliation(s)
- Gerhard Laus
- Faculty of Chemistry and Pharmacy, University of Innsbruck, 6020 Innsbruck, Austria , Fax: +43 512 507 57099
| | - Mirco E. Kostner
- Faculty of Chemistry and Pharmacy, University of Innsbruck, 6020 Innsbruck, Austria
| | - Volker Kahlenberg
- Institute of Mineralogy and Petrography, University of Innsbruck, 6020 Innsbruck, Austria
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29
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2-Azidoimidazolium Ions Captured by N-Heterocyclic Carbenes: Azole-Substituted Triazatrimethine Cyanines. CRYSTALS 2016. [DOI: 10.3390/cryst6040040] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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30
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Synthesis, structure, and reaction of chiral 2-azidoimidazolinium salts: (7aS)-3-azido-5,6,7,7a-tetrahydro-2-[(1R)-1-phenylethyl]-1H-pyrrolo[1,2-c]imidazolium hexafluorophosphate and 2-azido-1,3-bis[(S)-1-phenylethyl]imidazolinium hexafluorophosphate. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.03.036] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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31
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Potter GT, Jayson GC, Miller GJ, Gardiner JM. An Updated Synthesis of the Diazo-Transfer Reagent Imidazole-1-sulfonyl Azide Hydrogen Sulfate. J Org Chem 2016; 81:3443-6. [DOI: 10.1021/acs.joc.6b00177] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Garrett T. Potter
- Manchester
Institute of Biotechnology and School of Chemistry, The University of Manchester, 131 Princess Street, Manchester M1 7DN, U.K
| | - Gordon C. Jayson
- Institute
of Cancer Sciences, Faculty of Medical and Human Sciences, The University of Manchester, Manchester M20 4BX, U.K
| | - Gavin J. Miller
- Manchester
Institute of Biotechnology and School of Chemistry, The University of Manchester, 131 Princess Street, Manchester M1 7DN, U.K
| | - John M. Gardiner
- Manchester
Institute of Biotechnology and School of Chemistry, The University of Manchester, 131 Princess Street, Manchester M1 7DN, U.K
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5-Azido-4-dimethylamino-1-methyl-1,2,4-triazolium Hexafluoridophosphate and Derivatives. CRYSTALS 2016. [DOI: 10.3390/cryst6020020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Ford A, Miel H, Ring A, Slattery CN, Maguire AR, McKervey MA. Modern Organic Synthesis with α-Diazocarbonyl Compounds. Chem Rev 2015; 115:9981-10080. [PMID: 26284754 DOI: 10.1021/acs.chemrev.5b00121] [Citation(s) in RCA: 1087] [Impact Index Per Article: 120.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
| | - Hugues Miel
- Almac Discovery Ltd. , David Keir Building, Stranmillis Road, Belfast BT9 5AG, United Kingdom
| | | | | | | | - M Anthony McKervey
- Almac Sciences Ltd. , Almac House, 20 Seagoe Industrial Estate, Craigavon BT63 5QD, United Kingdom
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Kitamura M, Takahashi S, Okauchi T. Rh-Catalyzed Cyclization of 3-Aryloxycarbonyldiazonaphthoquinones for the Synthesis of β-Phenylnaphthalene Lactones and Formal Synthesis of Pradimicinone. J Org Chem 2015; 80:8406-16. [DOI: 10.1021/acs.joc.5b01251] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mitsuru Kitamura
- Department of Applied Chemistry, Kyushu Institute of Technology, 1-1 Sensuicho, Tobata, Kitakyushu 804-8550 Japan
| | - Shuhei Takahashi
- Department of Applied Chemistry, Kyushu Institute of Technology, 1-1 Sensuicho, Tobata, Kitakyushu 804-8550 Japan
| | - Tatsuo Okauchi
- Department of Applied Chemistry, Kyushu Institute of Technology, 1-1 Sensuicho, Tobata, Kitakyushu 804-8550 Japan
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Kitamura M, Sakata R, Tashiro N, Ikegami A, Okauchi T. Synthesis of Diazonaphthoquinones from Naphthols by Diazo-Transfer Reaction. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2015. [DOI: 10.1246/bcsj.20150021] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | - Rie Sakata
- Department of Applied Chemistry, Kyushu Institute of Technology
| | | | - Azusa Ikegami
- Department of Applied Chemistry, Kyushu Institute of Technology
| | - Tatsuo Okauchi
- Department of Applied Chemistry, Kyushu Institute of Technology
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Suárez JR, Collado-Sanz D, Cárdenas DJ, Chiara JL. Nonafluorobutanesulfonyl Azide as a Shelf-Stable Highly Reactive Oxidant for the Copper-Catalyzed Synthesis of 1,3-Diynes from Terminal Alkynes. J Org Chem 2014; 80:1098-106. [DOI: 10.1021/jo5025909] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- José Ramón Suárez
- Instituto de Química Orgánica General (IQOG-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
| | - Daniel Collado-Sanz
- Departamento
de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Campus de Cantoblanco, 28049 Madrid, Spain
| | - Diego J. Cárdenas
- Departamento
de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Campus de Cantoblanco, 28049 Madrid, Spain
| | - Jose Luis Chiara
- Instituto de Química Orgánica General (IQOG-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
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Lim D, Brimble MA, Kowalczyk R, Watson AJA, Fairbanks AJ. Protecting-Group-Free One-Pot Synthesis of Glycoconjugates Directly from Reducing Sugars. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201406694] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Lim D, Brimble MA, Kowalczyk R, Watson AJA, Fairbanks AJ. Protecting-group-free one-pot synthesis of glycoconjugates directly from reducing sugars. Angew Chem Int Ed Engl 2014; 53:11907-11. [PMID: 25199905 DOI: 10.1002/anie.201406694] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Indexed: 11/09/2022]
Abstract
The conversion of sugars into glycomimetics typically involves multiple protecting-group manipulations. The development of methodology allowing the direct aqueous conversion of free sugars into glycosides, and mimics of oligosaccharides and glycoconjugates in a high-yielding and stereoselective process is highly desirable. The combined use of 2-azido-1,3-dimethylimidazolinium hexafluorophosphate and the Cu-catalyzed Huisgen cycloaddition allowed the synthesis of a range of glycoconjugates in a one-step reaction directly from reducing sugars under aqueous conditions. The reaction, which is completely stereoselective, may be applied to the convergent synthesis of triazole-linked glycosides, oligosaccharides, and glycopeptides. The procedure provides a method for the one-pot aqueous ligation of oligosaccharides and peptides bearing alkyne side chains.
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Affiliation(s)
- David Lim
- Department of Chemistry, University of Canterbury, Private Bag 4800, Christchurch 8140 (New Zealand)
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