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Nowicki K, Krajewska J, Stępniewski TM, Wielechowska M, Wińska P, Kaczmarczyk A, Korpowska J, Selent J, Marek-Urban PH, Durka K, Woźniak K, Laudy AE, Luliński S. Exploiting thiol-functionalized benzosiloxaboroles for achieving diverse substitution patterns - synthesis, characterization and biological evaluation of promising antibacterial agents. RSC Med Chem 2024; 15:1751-1772. [PMID: 38784477 PMCID: PMC11110727 DOI: 10.1039/d4md00061g] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 03/18/2024] [Indexed: 05/25/2024] Open
Abstract
Benzosiloxaboroles are an emerging class of medicinal agents possessing promising antimicrobial activity. Herein, the expedient synthesis of two novel thiol-functionalized benzosiloxaboroles 1e and 2e is reported. The presence of the SH group allowed for diverse structural modifications involving the thiol-Michael addition, oxidation, as well as nucleophilic substitution giving rise to a series of 27 new benzosiloxaboroles containing various polar functional groups, e.g., carbonyl, ester, amide, imide, nitrile, sulfonyl and sulfonamide, and pendant heterocyclic rings. The activity of the obtained compounds against selected bacterial and yeast strains, including multidrug-resistant clinical strains, was investigated. Compounds 6, 12, 20 and 22-24 show high activity against Staphylococcus aureus, including both methicillin-sensitive (MSSA) and methicillin-resistant (MRSA) strains, with MIC values in the range of 1.56-12.5 μg mL-1, while their cytotoxicity is relatively low. The in vitro assay performed with 2-(phenylsulfonyl)ethylthio derivative 20 revealed that, in contrast to the majority of known antibacterial oxaboroles, the plausible mechanism of antibacterial action, involving inhibition of the leucyl-tRNA synthetase enzyme, is not responsible for the antibacterial activity. Structural bioinformatic analysis involving molecular dynamics simulations provided a possible explanation for this finding.
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Affiliation(s)
- Krzysztof Nowicki
- Faculty of Chemistry, Warsaw University of Technology Noakowskiego 3 00-664 Warsaw Poland
| | - Joanna Krajewska
- Department of Pharmaceutical Microbiology and Bioanalysis, Medical University of Warsaw Banacha 1b 02-097 Warsaw Poland
| | - Tomasz M Stępniewski
- GPCR Drug Discovery Lab, Research Programme on Biomedical Informatics (GRIB), Hospital del Mar Medical Research Institute (IMIM) - Department of Medicine and Life Sciences, Pompeu Fabra University (UPF) Carrer del Dr. Aiguader, 88 08003 Barcelona Spain
| | - Monika Wielechowska
- Faculty of Chemistry, Warsaw University of Technology Noakowskiego 3 00-664 Warsaw Poland
| | - Patrycja Wińska
- Faculty of Chemistry, Warsaw University of Technology Noakowskiego 3 00-664 Warsaw Poland
| | - Anna Kaczmarczyk
- Faculty of Chemistry, Warsaw University of Technology Noakowskiego 3 00-664 Warsaw Poland
| | - Julia Korpowska
- Faculty of Chemistry, Warsaw University of Technology Noakowskiego 3 00-664 Warsaw Poland
| | - Jana Selent
- GPCR Drug Discovery Lab, Research Programme on Biomedical Informatics (GRIB), Hospital del Mar Medical Research Institute (IMIM) - Department of Medicine and Life Sciences, Pompeu Fabra University (UPF) Carrer del Dr. Aiguader, 88 08003 Barcelona Spain
| | - Paulina H Marek-Urban
- Faculty of Chemistry, Warsaw University of Technology Noakowskiego 3 00-664 Warsaw Poland
| | - Krzysztof Durka
- Faculty of Chemistry, Warsaw University of Technology Noakowskiego 3 00-664 Warsaw Poland
| | - Krzysztof Woźniak
- Faculty of Chemistry, University of Warsaw Pasteura 1 00-093 Warsaw Poland
| | - Agnieszka E Laudy
- Department of Pharmaceutical Microbiology and Bioanalysis, Medical University of Warsaw Banacha 1b 02-097 Warsaw Poland
| | - Sergiusz Luliński
- Faculty of Chemistry, Warsaw University of Technology Noakowskiego 3 00-664 Warsaw Poland
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Pacholak P, Krajewska J, Wińska P, Dunikowska J, Gogowska U, Mierzejewska J, Durka K, Woźniak K, Laudy AE, Luliński S. Development of structurally extended benzosiloxaboroles - synthesis and in vitro biological evaluation. RSC Adv 2021; 11:25104-25121. [PMID: 35478884 PMCID: PMC9037100 DOI: 10.1039/d1ra04127d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 07/09/2021] [Indexed: 12/26/2022] Open
Abstract
The synthesis of potassium 6-hydroxy-7-chloro-1,1-dimethyl-3,3-difluorobenzo-1,2,3-siloxaborolate 5b from readily available 4-bromo-2-chlorophenol was developed. This compound proved useful in various derivatizations resulting in a wide range of O-functionalized benzosiloxaboroles. Reactions of 5b with selected substituted benzoyl chlorides gave rise to a series of respective derivatives with 6-benzoate side groups attached to the benzosiloxaborole core. Furthermore, treatment of 5b with substituted benzenesufonyl chlorides afforded several benzosiloxaboroles bearing functionalized benzenesulfonate moieties at the 6 position. The synthesis of related chloropyridine-2-yloxy substituted benzosiloxaboroles was accomplished by a standard approach involving silylation/boronation of appropriate heterodiaryl ethers. Investigation of biological activity of obtained compounds revealed that some benzoate and most benzenesulfonate derivatives exhibit high activity against Gram-positive cocci such as methicillin-sensitive Staphylococcus aureus ATCC 6538P as well as methicillin-resistant S. aureus ATCC 43300 with the MIC values in the range of 0.39–3.12 mg L−1. Some benzenesulfonate derivatives showed also potent activity against Enterococcus faecalis ATCC 29212 and E. faecium ATCC 6057 with MIC = 6.25 mg L−1. Importantly, for the most promising cocci-active benzenesulfonate derivatives the obtained MIC values were far below the cytotoxicity limit determined with respect to human normal lung fibroblasts (MRC-5). For those derivatives, the obtained IC50 values were higher than 12.3 mg L−1. The results of antimicrobial activity and cytotoxicity indicate that the tested compounds can be considered as potential antibacterial agents. The synthesis of potassium 6-hydroxy-7-chloro-1,1-dimethyl-3,3-difluorobenzo-1,2,3-siloxaborolate 5b from readily available 4-bromo-2-chlorophenol was developed.![]()
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Affiliation(s)
- P Pacholak
- Faculty of Chemistry, Warsaw University of Technology Noakowskiego 3 00-664 Warsaw Poland .,University of Warsaw, Faculty of Chemistry Pasteura 1 02-093 Warsaw Poland
| | - J Krajewska
- Department of Pharmaceutical Microbiology, Medical University of Warsaw Oczki 3 02-007 Warsaw Poland
| | - P Wińska
- Faculty of Chemistry, Warsaw University of Technology Noakowskiego 3 00-664 Warsaw Poland
| | - J Dunikowska
- Faculty of Chemistry, Warsaw University of Technology Noakowskiego 3 00-664 Warsaw Poland
| | - U Gogowska
- Faculty of Chemistry, Warsaw University of Technology Noakowskiego 3 00-664 Warsaw Poland
| | - J Mierzejewska
- Faculty of Chemistry, Warsaw University of Technology Noakowskiego 3 00-664 Warsaw Poland
| | - K Durka
- Faculty of Chemistry, Warsaw University of Technology Noakowskiego 3 00-664 Warsaw Poland
| | - K Woźniak
- University of Warsaw, Faculty of Chemistry Pasteura 1 02-093 Warsaw Poland
| | - A E Laudy
- Department of Pharmaceutical Microbiology, Medical University of Warsaw Oczki 3 02-007 Warsaw Poland
| | - S Luliński
- Faculty of Chemistry, Warsaw University of Technology Noakowskiego 3 00-664 Warsaw Poland
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Leaver DJ, Cleary B, Nguyen N, Priebbenow DL, Lagiakos HR, Sanchez J, Xue L, Huang F, Sun Y, Mujumdar P, Mudududdla R, Varghese S, Teguh S, Charman SA, White KL, Katneni K, Cuellar M, Strasser JM, Dahlin JL, Walters MA, Street IP, Monahan BJ, Jarman KE, Sabroux HJ, Falk H, Chung MC, Hermans SJ, Parker MW, Thomas T, Baell JB. Discovery of Benzoylsulfonohydrazides as Potent Inhibitors of the Histone Acetyltransferase KAT6A. J Med Chem 2019; 62:7146-7159. [DOI: 10.1021/acs.jmedchem.9b00665] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
| | | | | | | | - H. Rachel Lagiakos
- Cancer Therapeutics CRC, 343 Royal Parade, Parkville, Victoria 3052, Australia
| | - Julie Sanchez
- Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, Victoria 3052, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Victoria 3050, Australia
| | - Lian Xue
- School of Pharmaceutical Sciences, Nanjing Tech University, No. 30 South Puzhu Road, Nanjing 211816, People’s Republic of China
| | - Fei Huang
- School of Pharmaceutical Sciences, Nanjing Tech University, No. 30 South Puzhu Road, Nanjing 211816, People’s Republic of China
| | | | | | | | | | | | | | | | | | - Matthew Cuellar
- Institute for Therapeutics Discovery and Development, University of Minnesota, 717 Delaware Street SE, Minneapolis, Minnesota 55455, United States
| | - Jessica M. Strasser
- Institute for Therapeutics Discovery and Development, University of Minnesota, 717 Delaware Street SE, Minneapolis, Minnesota 55455, United States
| | - Jayme L. Dahlin
- Department of Pathology, Brigham and Women’s Hospital, Boston, 75 Francis Street, Boston, Massachusetts 02115, United States
| | - Michael A. Walters
- Institute for Therapeutics Discovery and Development, University of Minnesota, 717 Delaware Street SE, Minneapolis, Minnesota 55455, United States
| | - Ian P. Street
- Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, Victoria 3052, Australia
- Cancer Therapeutics CRC, 343 Royal Parade, Parkville, Victoria 3052, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Victoria 3050, Australia
| | - Brendon J. Monahan
- Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, Victoria 3052, Australia
- Cancer Therapeutics CRC, 343 Royal Parade, Parkville, Victoria 3052, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Victoria 3050, Australia
| | - Kate E. Jarman
- Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, Victoria 3052, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Victoria 3050, Australia
| | - Helene Jousset Sabroux
- Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, Victoria 3052, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Victoria 3050, Australia
| | - Hendrik Falk
- Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, Victoria 3052, Australia
- Cancer Therapeutics CRC, 343 Royal Parade, Parkville, Victoria 3052, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Victoria 3050, Australia
| | - Matthew C. Chung
- ACRF Rational Drug Discovery Centre, St. Vincent’s Institute of Medical Research, Fitzroy, Victoria 3065, Australia
| | - Stefan J. Hermans
- ACRF Rational Drug Discovery Centre, St. Vincent’s Institute of Medical Research, Fitzroy, Victoria 3065, Australia
| | - Michael W. Parker
- ACRF Rational Drug Discovery Centre, St. Vincent’s Institute of Medical Research, Fitzroy, Victoria 3065, Australia
| | - Tim Thomas
- Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, Victoria 3052, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Victoria 3050, Australia
| | - Jonathan B. Baell
- School of Pharmaceutical Sciences, Nanjing Tech University, No. 30 South Puzhu Road, Nanjing 211816, People’s Republic of China
- ARC Centre for Fragment-Based Design, Monash University, Parkville, Victoria 3052, Australia
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Czub M, Durka K, Luliński S, Łosiewicz J, Serwatowski J, Urban M, Woźniak K. Synthesis and Transformations of Functionalized Benzosiloxaboroles. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601328] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Maja Czub
- Warsaw University of Technology; Faculty of Chemistry; Department of Physical Chemistry 00-664 Warsaw Poland
| | - Krzysztof Durka
- Warsaw University of Technology; Faculty of Chemistry; Department of Physical Chemistry 00-664 Warsaw Poland
| | - Sergiusz Luliński
- Warsaw University of Technology; Faculty of Chemistry; Department of Physical Chemistry 00-664 Warsaw Poland
| | - Justyna Łosiewicz
- Warsaw University of Technology; Faculty of Chemistry; Department of Physical Chemistry 00-664 Warsaw Poland
| | - Janusz Serwatowski
- Warsaw University of Technology; Faculty of Chemistry; Department of Physical Chemistry 00-664 Warsaw Poland
| | - Mateusz Urban
- Warsaw University of Technology; Faculty of Chemistry; Department of Physical Chemistry 00-664 Warsaw Poland
| | - Krzysztof Woźniak
- Chemistry Department; Biological and Chemical Research Centre; University of Warsaw 02-089 Warszawa Poland
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Morrison CF, Stamp CT, Burnell DJ. Anionic cyclizations of aromatic ester dithioacetals with facially biased α,β-unsaturated ketones. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.09.162] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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7
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Onda K, Shiraki R, Ogiyama T, Yokoyama K, Momose K, Katayama N, Orita M, Yamaguchi T, Furutani M, Hamada N, Takeuchi M, Okada M, Ohta M, Tsukamoto SI. Design, synthesis, and pharmacological evaluation of N-bicyclo-5-chloro-1H-indole-2-carboxamide derivatives as potent glycogen phosphorylase inhibitors. Bioorg Med Chem 2008; 16:10001-12. [DOI: 10.1016/j.bmc.2008.10.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2008] [Revised: 10/08/2008] [Accepted: 10/09/2008] [Indexed: 11/29/2022]
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Luliński S, Serwatowski J, Szczerbińska M. Regioselective Generation of Aryllithiums from Substituted Bromobenzenes XC6H4Br (X = 4-Br, 4-I, 4-CN, 2-CN). European J Org Chem 2008. [DOI: 10.1002/ejoc.200701126] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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9
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Porcs-Makkay M, Komáromi A, Lukács G, Simig G. Lithiation of 2-(chloroaryl)-2-aryl-1,3-dioxolanes with butyllithium activated by N,N,N′,N″,N″-pentamethyldiethylenetriamine. Tetrahedron 2008. [DOI: 10.1016/j.tet.2007.08.086] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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10
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Gohier F, Castanet A, Mortier J. Ortholithiation of Unprotected Benzoic Acids: Application for Novel 2‐Chloro‐6‐Substituted Benzoic Acid Syntheses. SYNTHETIC COMMUN 2005. [DOI: 10.1081/scc-200050946] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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11
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Gohier F, Castanet AS, Mortier J. The First Regioselective Metalation and Functionalization of Unprotected 4-Halobenzoic Acids. J Org Chem 2005; 70:1501-4. [PMID: 15704996 DOI: 10.1021/jo0483365] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[reaction: see text] By treatment with s-BuLi, s-BuLi/TMEDA, or t-BuLi at approximately -78 degrees C, 4-fluoro- and 4-chlorobenzoic acids (1a,b) are metalated preferentially in the position adjacent to the carboxylate. A complete reversal in regioselectivity is observed for 1a when treated with LTMP; a sequential process involving a rapid intraaggregate lithiation through a quasi dianion complex "QUADAC" is postulated to explain the unusual reactivity of Me(2)S(2) and I(2).
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Affiliation(s)
- Frédéric Gohier
- Université du Maine and CNRS, Unité de chimie organique moléculaire et macromoléculaire (UMR 6011), Faculté des sciences, avenue Olivier Messiaen, 72085 Le Mans Cedex 9, France
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12
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Luliński S, Serwatowski J. Bromine as the Ortho-Directing Group in the Aromatic Metalation/Silylation of Substituted Bromobenzenes. J Org Chem 2003; 68:9384-8. [PMID: 14629161 DOI: 10.1021/jo034790h] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The one-pot metalation/disilylation of selected bromobenzenes bearing electron-withdrawing substituents p-, m-, o-XC6H4Br (X = F, Cl, I, CN, CF3) using 2 equiv of lithium diisopropylamide (LDA) and 2 equiv of chlorotrimethylsilane (TMSCl) was investigated. The best results of disilylation were obtained for para-substituted bromobenzenes, but the regioselectivity of the reaction is strongly influenced by the ortho-directing power of the substituent. On the contrary, the disilylation of meta-substituted bromobenzenes was not efficient or even failed in some cases and hence monosilylated derivatives were isolated as major or sole products. Diverse reactivity was observed for ortho-substituted bromobenzenes, e.g., 2-bromobenzonitrile and 2-bromochlorobenzene, were converted into corresponding disilylated derivatives in a high and moderate yield, respectively, whereas 1-bromo-2-(trifluoromethyl)benzene underwent only monosilylation.
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Affiliation(s)
- Sergiusz Luliński
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
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Toudic F, Turck A, Plé N, Quéguiner G, Darabantu M, Lequeux T, Pommelet JC. Relativeortho-directing power of fluorine, chlorine and methoxy group for the metalation reaction in the diazine series. Diazines XXXV. J Heterocycl Chem 2003. [DOI: 10.1002/jhet.5570400517] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Abstract
The metalation of selected oligobromobenzenes with lithium diisopropylamide (LDA) was investigated. 1,3-Dibromo-substituted benzenes were metalated without special precautions since the resultant 2,6-dibromophenyllithium intermediates are relatively stable under reaction conditions: corresponding benzaldehydes were obtained in good or moderate yields after subsequent quench with N,N-dimethylformamide (DMF). Aryllithium compounds derived from 1,4- and 1,2-dibromobenzene are much less stable, but they could be trapped by the in situ use of chlorotrimethylsilane. The one-pot metalation/disilylation of 1,4-dibromo- and 1,2-dibromobenzene afforded 1,4-dibromo-2,5-bis(trimethylsilyl)benzene and 2,3-dibromo-1,4-bis(trimethylsilyl)benzene, respectively.
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Affiliation(s)
- Sergiusz Luliński
- Warsaw University of Technology, Faculty of Chemistry, Noakowskiego 3, 00-664 Warsaw, Poland
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Gohier F, Castanet AS, Mortier J. Selectivities in reactions of organolithium reagents with unprotected 2-halobenzoic acids. Org Lett 2003; 5:1919-22. [PMID: 12762686 DOI: 10.1021/ol034491e] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[reaction: see text] Exposing 2-fluorobenzoic acid (1a) to 2.2 equiv of LTMP at ca. -78 degrees C leads to deprotonation at the 3-position whereas 2-chloro/bromobenzoic acids (1b,c) are lithiated adjacent to the carboxylate. The resulting dianions 3Li-1a and 6Li-1b,c are trapped as such by chlorotrimethylsilane. In the absence of internal quench, 6Li-1b,c isomerize to the more stable 3Li-1b,c. The latter eliminate lithium halide and set free benzyne-3-carboxylate (2) that reacts regioselectively with LTMP to give 3-tetramethylpiperidinobenzoic acid (3).
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Affiliation(s)
- Frédéric Gohier
- Université du Maine and CNRS, Unité de chimie organique moléculaire et macromoléculaire (UMR 6011), Faculté des sciences, avenue Olivier Messiaen, 72085 Le Mans Cedex 9, France
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Gohier F, Mortier J. ortho-metalation of unprotected 3-bromo and 3-chlorobenzoic acids with hindered lithium dialkylamides. J Org Chem 2003; 68:2030-3. [PMID: 12608831 DOI: 10.1021/jo026514t] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Upon treatment of 3-chloro/bromobenzoic acids with hindered lithium dialkylamides (LDA or LTMP) at -50 degrees C, lithium 3-chloro/bromo-2-lithiobenzoates are generated. These dianions can be trapped as such to afford after electrophilic quenching a variety of simple 2-substituted-3-chloro/bromobenzoic acids. The 3-bromo-2-lithiobenzoate is less stable than the corresponding 3-chloro derivative and partly eliminates lithium bromide, thus setting free lithium 2,3- and 3,4-dehydrobenzoates that can be intercepted in situ with the hindered base.
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Affiliation(s)
- Frédéric Gohier
- Université du Maine and CNRS, Unité de chimie organique moléculaire et macromoléculaire (UMR 6011), Faculté des sciences, avenue Olivier Messiaen, 72085 Le Mans Cedex 9, France
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Pirrung MC, Park K, Tumey LN. (19)F-encoded combinatorial libraries: discovery of selective metal binding and catalytic peptoids. JOURNAL OF COMBINATORIAL CHEMISTRY 2002; 4:329-44. [PMID: 12099851 DOI: 10.1021/cc010083v] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A (19)F NMR method for encoding of combinatorial libraries has been developed. Aryl fluorides whose chemical shifts are modified by aromatic substituents were prepared and attached to resin support beads that were used in the split-pool synthesis of peptoids. The detection of the (19)F NMR signal of tags derived from a single "big bead" was demonstrated. The library diversity arises from peptoid amines and the cyclic anhydrides used in their acylation. The resulting 90-compound library was examined for metal ion binding, and novel ligands for iron and copper were discovered. Their binding constants were determined to be in the low micromolar range using conventional methods. The library was also examined for autocatalysis of acylation, and a molecule possessing the catalytic triad of serine proteases was deduced.
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Affiliation(s)
- Michael C Pirrung
- Department of Chemistry, Levine Science Research Center, Box 90317, Duke University, Durham, North Carolina 27708-0317, USA
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Metallinos C, Nerdinger S, Snieckus V. N-Cumyl Benzamide, Sulfonamide, and Aryl O-Carbamate Directed Metalation Groups. Mild Hydrolytic Lability for Facile Manipulation of Directed Ortho Metalation Derived Aromatics. Org Lett 1999. [DOI: 10.1021/ol990846b] [Citation(s) in RCA: 63] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Costa Metallinos
- Guelph-Waterloo Centre for Graduate Work in Chemistry, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada, and Department of Chemistry, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - Sven Nerdinger
- Guelph-Waterloo Centre for Graduate Work in Chemistry, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada, and Department of Chemistry, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - Victor Snieckus
- Guelph-Waterloo Centre for Graduate Work in Chemistry, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada, and Department of Chemistry, Queen's University, Kingston, Ontario K7L 3N6, Canada
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Ameline G, Vaultier M, Mortier J. Directed metalation reactions. Intermolecular competition of the carboxylic acid group and various substituents. Tetrahedron Lett 1996. [DOI: 10.1016/0040-4039(96)01864-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Plunian B, Mortier J, Vaultier M, Toupet L. Stereospecific 1,4-Addition of Organolithium Reagents to Unprotected 1- and 2-Naphthalenecarboxylic Acids. A Facile Route to 1,1,2- and -1,2,2-Trisubstituted 1,2-Dihydronaphthalenes. J Org Chem 1996. [DOI: 10.1021/jo960934z] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Barbara Plunian
- Université Rennes-I, Groupe de recherches de physicochimie structurale, unité associée au CNRS no. 704, avenue du Général Leclerc, 35042 Rennes Cedex, France
| | - Jacques Mortier
- Université Rennes-I, Groupe de recherches de physicochimie structurale, unité associée au CNRS no. 704, avenue du Général Leclerc, 35042 Rennes Cedex, France
| | - Michel Vaultier
- Université Rennes-I, Groupe de recherches de physicochimie structurale, unité associée au CNRS no. 704, avenue du Général Leclerc, 35042 Rennes Cedex, France
| | - Loïc Toupet
- Université Rennes-I, Groupe de physique cristalline, unité associée au CNRS no. 15, avenue du Général Leclerc, 35042 Rennes Cedex, France
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