1
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Prendes DS, Papp F, Sankaran N, Sivendran N, Beyer F, Merten C, Gooßen LJ. Enantioselective Synthesis of Arylglycines via Pd-Catalyzed Coupling of Schöllkopf Bis-Lactim Ethers with Aryl Chlorides. Angew Chem Int Ed Engl 2023; 62:e202309868. [PMID: 37671802 DOI: 10.1002/anie.202309868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 08/22/2023] [Accepted: 09/06/2023] [Indexed: 09/07/2023]
Abstract
Arylglycines are important pharmacophores present in several top-selling drugs. This compound class has now been made accessible from abundant aryl chlorides by a Pd-catalyzed Schöllkopf-type amino acid synthesis. In the presence of the catalyst methylnaphthyl(XPhos)-palladium bromide, the base lithium 2,2,6,6-tetramethylpyrrolidide and the additive ZnCl2 , tert-leucine-derived bis-lactim ethers were efficiently arylated at room temperature, reaching yields of 95 % and diastereoselectivities of 98 : 2. Hydrolysis gave the corresponding arylglycines in high enantiomeric excess.
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Affiliation(s)
- Daniel Sowa Prendes
- Faculty for Chemistry and Biochemistry, Chair of Organic Chemistry I, Ruhr-Universität Bochum, Universitätsstr. 150, 44801, Bochum, Germany
| | - Florian Papp
- Faculty for Chemistry and Biochemistry, Chair of Organic Chemistry I, Ruhr-Universität Bochum, Universitätsstr. 150, 44801, Bochum, Germany
| | - Nagesh Sankaran
- Faculty for Chemistry and Biochemistry, Chair of Organic Chemistry I, Ruhr-Universität Bochum, Universitätsstr. 150, 44801, Bochum, Germany
| | - Nardana Sivendran
- Faculty for Chemistry and Biochemistry, Chair of Organic Chemistry I, Ruhr-Universität Bochum, Universitätsstr. 150, 44801, Bochum, Germany
| | - Frederike Beyer
- Faculty for Chemistry and Biochemistry, Organic Chemistry II, Ruhr-Universität Bochum Universitätsstr. 150, 44801 Bochum (Germany)
| | - Christian Merten
- Faculty for Chemistry and Biochemistry, Organic Chemistry II, Ruhr-Universität Bochum Universitätsstr. 150, 44801 Bochum (Germany)
| | - Lukas J Gooßen
- Faculty for Chemistry and Biochemistry, Chair of Organic Chemistry I, Ruhr-Universität Bochum, Universitätsstr. 150, 44801, Bochum, Germany
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2
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Wales SM, Saunthwal RK, Clayden J. C(sp 3)-Arylation by Conformationally Accelerated Intramolecular Nucleophilic Aromatic Substitution (S NAr). Acc Chem Res 2022; 55:1731-1747. [PMID: 35620846 PMCID: PMC9219115 DOI: 10.1021/acs.accounts.2c00184] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
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The asymmetric synthesis of heavily substituted benzylic stereogenic
centers, prevalent in natural products, therapeutics, agrochemicals,
and catalysts, is an ongoing challenge. In this Account, we outline
our contribution to this endeavor, describing our discovery of a series
of new reactions that not only have synthetic applicability but also
present significant mechanistic intrigue. The story originated from
our longstanding interest in the stereochemistry and reactivity of
functionalized organolithiums. While investigating the lithiation
chemistry of ureas (a “Cinderella” sister of the more
established amides and carbamates), we noted an unexpected Truce–Smiles
(T-S) rearrangement involving the 1,4-N → C transposition of
a urea N′-aryl group to the α-carbanion
of an adjacent N-benzyl group. Despite this reaction
formally constituting an SNAr substitution, we found it
to be remarkably tolerant of the electronic properties of the migrating
aryl substituent and the degree of substitution at the carbanion.
Moreover, in contrast to classical SNAr reactions, the
rearrangement was sufficiently rapid that it took place under conditions
compatible with configurational stability in an organolithium intermediate,
enabling enantiospecific arylation at benzylic stereogenic centers.
Experimental and computational studies confirmed a low kinetic barrier
to the aryl migration arising from the strong preference for a trans arrangement of the urea N′-aryl
and carbonyl groups, populating a reactive conformer in which spatial
proximity was enforced between the carbanion and N′-aryl group, hugely accelerating ipso-substitution. This discovery led us to uncover a whole series of conformationally
accelerated intramolecular N → C aryl transfers using different
anilide-based functional groups, including a diverse range of urea,
carbamate, and thiocarbamate-substituted anions. Products included
enantioenriched α-tertiary amines (including α-arylated
N-heterocycles) and alcohols, as well as rare α-tertiary thiols.
Synthetically challenging diarylated centers with differentiated aryl
groups featured heavily in all product sets. The absolute enantiospecificity
(retention versus inversion) of the reaction was dependent on the
heteroatom α to the lithiation site: the origin of this stereodivergence
was probed both experimentally and computationally. Asymmetric variants
of the rearrangement were realized by enantioselective deprotonation,
and connective strategies were developed in which an intermolecular
C–C bond-forming event preceded the anionic rearrangement.
Substrates where the N′-nucleofuge (at the
aryl ipso position) was tethered to the migrating
arene allowed us to use the rearrangement as a ring expansion method
to generate 8- to 12-membered medium-ring N-heterocycles from very
simple precursors. Stabilized carbon nucleophiles such as alkali metal
enolates also readily promoted intramolecular N → C aryl transfer
in N′-arylureas, opening up access to biologically
relevant hydantoins, and enabling a “chiral memory”
approach for the (hetero)arylation of chiral α-amino acids with
programmable retention or inversion of configuration. Collectively,
our studies of electronically versatile T-S rearrangements in anilide-based
systems have culminated in a practical and general strategy for transition
metal-free C(sp3)-arylation. More broadly, our results
highlight the power of conformational activation to achieve unprecedented
reactivity in the construction of challenging C–C bonds.
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Affiliation(s)
- Steven M. Wales
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
| | - Rakesh K. Saunthwal
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
| | - Jonathan Clayden
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
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3
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Sharma S, Singh J, Sharma A. Visible Light Assisted Radical‐Polar/Polar‐Radical Crossover Reactions in Organic Synthesis. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100205] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Shivani Sharma
- Department of Chemistry Indian Institute of Technology Roorkee Roorkee 247667 India
| | - Jitender Singh
- Department of Chemistry Indian Institute of Technology Roorkee Roorkee 247667 India
| | - Anuj Sharma
- Department of Chemistry Indian Institute of Technology Roorkee Roorkee 247667 India
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4
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Millward MJ, Ellis E, Ward JW, Clayden J. Hydantoin-bridged medium ring scaffolds by migratory insertion of urea-tethered nitrile anions into aromatic C-N bonds. Chem Sci 2020; 12:2091-2096. [PMID: 34163972 PMCID: PMC8179327 DOI: 10.1039/d0sc06188c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Bicyclic or tricyclic nitrogen-containing heterocyclic scaffolds were constructed rapidly by intramolecular nucleophilic aromatic substitution of metallated nitriles tethered by a urea linkage to a series of electronically unactivated heterocyclic precursors. The substitution reaction constitutes a ring expansion, enabled by the conformationally constrained tether between the nitrile and the heterocycle. Attack of the metallated urea leaving group on the nitrile generates a hydantoin that bridges the polycyclic products. X-ray crystallography reveals ring-dependant strain within the hydantoin.
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Affiliation(s)
- Makenzie J Millward
- School of Chemistry, University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Emily Ellis
- School of Chemistry, University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - John W Ward
- School of Chemistry, University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Jonathan Clayden
- School of Chemistry, University of Bristol Cantock's Close Bristol BS8 1TS UK
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5
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Abrams R, Clayden J. Photocatalytic Difunctionalization of Vinyl Ureas by Radical Addition Polar Truce–Smiles Rearrangement Cascades. Angew Chem Int Ed Engl 2020; 59:11600-11606. [DOI: 10.1002/anie.202003632] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Indexed: 02/03/2023]
Affiliation(s)
- Roman Abrams
- School of Chemistry University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Jonathan Clayden
- School of Chemistry University of Bristol Cantock's Close Bristol BS8 1TS UK
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6
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Abrams R, Clayden J. Photocatalytic Difunctionalization of Vinyl Ureas by Radical Addition Polar Truce–Smiles Rearrangement Cascades. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202003632] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Roman Abrams
- School of Chemistry University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Jonathan Clayden
- School of Chemistry University of Bristol Cantock's Close Bristol BS8 1TS UK
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7
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Rohrbach S, Smith AJ, Pang JH, Poole DL, Tuttle T, Chiba S, Murphy JA. Concerted Nucleophilic Aromatic Substitution Reactions. Angew Chem Int Ed Engl 2019; 58:16368-16388. [PMID: 30990931 PMCID: PMC6899550 DOI: 10.1002/anie.201902216] [Citation(s) in RCA: 127] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 04/11/2019] [Indexed: 12/31/2022]
Abstract
Recent developments in experimental and computational chemistry have identified a rapidly growing class of nucleophilic aromatic substitutions that proceed by concerted (cSN Ar) rather than classical, two-step, SN Ar mechanisms. Whereas traditional SN Ar reactions require substantial activation of the aromatic ring by electron-withdrawing substituents, such activating groups are not mandatory in the concerted pathways.
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Affiliation(s)
- Simon Rohrbach
- Department of Pure and Applied ChemistryUniversity of Strathclyde295 Cathedral StreetGlasgowG1 1XLUK
| | - Andrew J. Smith
- Department of Pure and Applied ChemistryUniversity of Strathclyde295 Cathedral StreetGlasgowG1 1XLUK
| | - Jia Hao Pang
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological UniversitySingapore637371Singapore
| | - Darren L. Poole
- GlaxoSmithKline Medicines Research CentreGunnels Wood RoadStevenageSG1 2NYUK
| | - Tell Tuttle
- Department of Pure and Applied ChemistryUniversity of Strathclyde295 Cathedral StreetGlasgowG1 1XLUK
| | - Shunsuke Chiba
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological UniversitySingapore637371Singapore
| | - John A. Murphy
- Department of Pure and Applied ChemistryUniversity of Strathclyde295 Cathedral StreetGlasgowG1 1XLUK
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8
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Rohrbach S, Smith AJ, Pang JH, Poole DL, Tuttle T, Chiba S, Murphy JA. Konzertierte nukleophile aromatische Substitutionen. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201902216] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Simon Rohrbach
- Department of Pure and Applied ChemistryUniversity of Strathclyde 295 Cathedral Street Glasgow G1 1XL Großbritannien
| | - Andrew J. Smith
- Department of Pure and Applied ChemistryUniversity of Strathclyde 295 Cathedral Street Glasgow G1 1XL Großbritannien
| | - Jia Hao Pang
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapur
| | - Darren L. Poole
- GlaxoSmithKline Medicines Research Centre Gunnels Wood Road Stevenage SG1 2NY Großbritannien
| | - Tell Tuttle
- Department of Pure and Applied ChemistryUniversity of Strathclyde 295 Cathedral Street Glasgow G1 1XL Großbritannien
| | - Shunsuke Chiba
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapur
| | - John A. Murphy
- Department of Pure and Applied ChemistryUniversity of Strathclyde 295 Cathedral Street Glasgow G1 1XL Großbritannien
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9
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Saunthwal RK, Cornall MT, Abrams R, Ward JW, Clayden J. Connective synthesis of 5,5-disubstituted hydantoins by tandem α-amination and α-arylation of silyl ketene acetals. Chem Sci 2019; 10:3408-3412. [PMID: 30996929 PMCID: PMC6429467 DOI: 10.1039/c8sc05263h] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 02/03/2019] [Indexed: 11/21/2022] Open
Abstract
Amination of a silylated ester generates an intermediate urea that transfers an aryl ring to the aminated centre and cyclises to a hydantoin.
5,5-Disubstituted hydantoins, formally the cyclisation products of quaternary amino acids, were formed connectively from simple ester-derived starting materials by a one-pot tandem method. Amination of the silyl ketene acetal derivative of a methyl ester takes place by silver-catalysed addition to the N
Created by potrace 1.16, written by Peter Selinger 2001-2019
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N bond of an azocarboxamide, generating a N-amino-N′-aryl urea derivative of a substituted aminoester. Treatment with a base forms an ester enolate which undergoes arylation by intramolecular migration of an aryl ring to the α-position of the ester. The product undergoes ring closure to a hydantoin, which may itself be deprotected and functionalised. Aryl migration is successful with rings of various electronic character and with esters bearing functionalised and unfunctionalised chains, and the products have features in common with several bioactive compounds.
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Affiliation(s)
- Rakesh K Saunthwal
- School of Chemistry , University of Bristol , Cantock's Close , Bristol BS8 1TS , UK . ;
| | - Matthew T Cornall
- School of Chemistry , University of Bristol , Cantock's Close , Bristol BS8 1TS , UK . ;
| | - Roman Abrams
- School of Chemistry , University of Bristol , Cantock's Close , Bristol BS8 1TS , UK . ;
| | - John W Ward
- School of Chemistry , University of Bristol , Cantock's Close , Bristol BS8 1TS , UK . ;
| | - Jonathan Clayden
- School of Chemistry , University of Bristol , Cantock's Close , Bristol BS8 1TS , UK . ;
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10
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Costil R, Fernández-Nieto F, Atkinson RC, Clayden J. α-Methyl phenylglycines by asymmetric α-arylation of alanine and their effect on the conformational preference of helical Aib foldamers. Org Biomol Chem 2019; 16:2757-2761. [PMID: 29595846 DOI: 10.1039/c8ob00551f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
α-Arylated alanine derivatives were made enantioselectively by migratory rearrangement of a urea derivative using (R,R)-pseudoephedrine as a chiral auxiliary. Incorporation of a single residue of the product α-methyl phenylglycine into an otherwise achiral oligomer of aminoisobutyric acid oligomer induced a preferred screw sense, detectable by a NMR reporter located at the remote terminus of the oligomer. The magnitude of the screw sense induction was greater when the chiral residue was located at the N-terminus of the foldamer, and in some cases the sense of induction was opposite to that of related α-methylated amino acids with α-substituents other than aryl.
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Affiliation(s)
- Romain Costil
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, UK.
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11
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Leonard DJ, Ward JW, Clayden J. Asymmetric α-arylation of amino acids. Nature 2018; 562:105-109. [PMID: 30283103 DOI: 10.1038/s41586-018-0553-9] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 08/17/2018] [Indexed: 11/09/2022]
Abstract
Quaternary amino acids, in which the α-carbon that bears the amino and carboxyl groups also carries two carbon substituents, have an important role as modifiers of peptide conformation and bioactivity and as precursors of medicinally important compounds1,2. In contrast to enantioselective alkylation at this α-carbon, for which there are several methods3-8, general enantioselective introduction of an aryl substituent at the α-carbon is synthetically challenging9. Nonetheless, the resultant α-aryl amino acids and their derivatives are valuable precursors to bioactive molecules10,11. Here we describe the synthesis of quaternary α-aryl amino acids from enantiopure amino acid precursors by α-arylation without loss of stereochemical integrity. Our approach relies on the temporary formation of a second stereogenic centre in an N'-arylurea adduct12 of an imidazolidinone derivative6 of the precursor amino acid, and uses readily available enantiopure amino acids both as a precursor and as a source of asymmetry. It avoids the use of valuable transition metals, and enables arylation with electron-rich, electron-poor and heterocyclic substituents. Either enantiomer of the product can be formed from a single amino acid precursor. The method is practical and scalable, and provides the opportunity to produce α-arylated quaternary amino acids in multi-gram quantities.
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Affiliation(s)
| | - John W Ward
- School of Chemistry, University of Bristol, Bristol, UK
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12
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Mas-Roselló J, Okoh M, Clayden J. Enantioselectively functionalised phenytoin derivatives by auxiliary-directed N to C aryl migration in lithiated α-amino nitriles. Chem Commun (Camb) 2018; 54:10985-10988. [PMID: 30211399 DOI: 10.1039/c8cc06833j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lithiation of N'-arylureas derived from amino nitriles incorporating a (1R,2R)-2-aminocyclohexanol chiral auxiliary leads to diastereoselective migration of the aryl ring to the position α to the nitrile. The resulting N'-lithiated ureas undergo spontaneous cyclisation to iminohydantoins, which may be hydrolysed to give chiral 5,5-diarylhydantoins related to phenytoin, in enantioenriched form.
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Affiliation(s)
- Josep Mas-Roselló
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, UK.
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13
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Hill JE, Lefebvre Q, Fraser LA, Clayden J. Polycyclic Indoline Derivatives by Dearomatizing Anionic Cyclization of Indole and Tryptamine-Derived Ureas. Org Lett 2018; 20:5770-5773. [DOI: 10.1021/acs.orglett.8b02468] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jessica E. Hill
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
| | - Quentin Lefebvre
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
| | - Laura A. Fraser
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
| | - Jonathan Clayden
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
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14
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Mas-Roselló J, Hachisu S, Clayden J. Geometry-Retentive C-Alkenylation of Lithiated α-Aminonitriles: Quaternary α-Alkenyl Amino Acids and Hydantoins. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201704908] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Josep Mas-Roselló
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
| | - Shuji Hachisu
- Syngenta Agrochemicals; Jealotts Hill Research Station Bracknell, Berks RG42 6EY UK
| | - Jonathan Clayden
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
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15
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Mas-Roselló J, Hachisu S, Clayden J. Geometry-Retentive C-Alkenylation of Lithiated α-Aminonitriles: Quaternary α-Alkenyl Amino Acids and Hydantoins. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/anie.201704908] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Josep Mas-Roselló
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
| | - Shuji Hachisu
- Syngenta Agrochemicals; Jealotts Hill Research Station Bracknell, Berks RG42 6EY UK
| | - Jonathan Clayden
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
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16
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Konnert L, Lamaty F, Martinez J, Colacino E. Recent Advances in the Synthesis of Hydantoins: The State of the Art of a Valuable Scaffold. Chem Rev 2017. [PMID: 28644621 DOI: 10.1021/acs.chemrev.7b00067] [Citation(s) in RCA: 117] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The review highlights the hydantoin syntheses presented from the point of view of the preparation methods. Novel synthetic routes to various hydantoin structures, the advances brought to the classical methods in the aim of producing more sustainable and environmentally friendly procedures for the preparation of these biomolecules, and a critical comparison of the different synthetic approaches developed in the last twelve years are also described. The review is composed of 95 schemes, 8 figures and 528 references for the last 12 years and includes the description of the hydantoin-based marketed drugs and clinical candidates.
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Affiliation(s)
- Laure Konnert
- Université de Montpellier, Institut des Biomolécules Max Mousseron UMR 5247 CNRS - Universités Montpellier - ENSCM , Place E. Bataillon, Campus Triolet, cc 1703, 34095 Montpellier, France
| | - Frédéric Lamaty
- Université de Montpellier, Institut des Biomolécules Max Mousseron UMR 5247 CNRS - Universités Montpellier - ENSCM , Place E. Bataillon, Campus Triolet, cc 1703, 34095 Montpellier, France
| | - Jean Martinez
- Université de Montpellier, Institut des Biomolécules Max Mousseron UMR 5247 CNRS - Universités Montpellier - ENSCM , Place E. Bataillon, Campus Triolet, cc 1703, 34095 Montpellier, France
| | - Evelina Colacino
- Université de Montpellier, Institut des Biomolécules Max Mousseron UMR 5247 CNRS - Universités Montpellier - ENSCM , Place E. Bataillon, Campus Triolet, cc 1703, 34095 Montpellier, France
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17
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Intramolecular vinylation of carbanions using N -acyl benzomorpholines as masked vinylureas and vinylcarbamates. CR CHIM 2017. [DOI: 10.1016/j.crci.2017.01.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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18
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Holden CM, Greaney MF. Modern Aspects of the Smiles Rearrangement. Chemistry 2017; 23:8992-9008. [DOI: 10.1002/chem.201700353] [Citation(s) in RCA: 114] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 04/07/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Catherine M. Holden
- School of Chemistry; University of Manchester; Oxford Rd Manchester M13 9PL UK
| | - Michael F. Greaney
- School of Chemistry; University of Manchester; Oxford Rd Manchester M13 9PL UK
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19
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Maury J, Zawodny W, Clayden J. Stereospecific Intramolecular Arylation of 2- and 3-Pyridyl Substituted Alkylamines via Configurationally Stable α-Pyridyl Organolithiums. Org Lett 2017; 19:472-475. [DOI: 10.1021/acs.orglett.6b03603] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Julien Maury
- School
of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
| | - Wojciech Zawodny
- School
of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - Jonathan Clayden
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
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20
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Hall JE, Matlock JV, Ward JW, Gray KV, Clayden J. Medium-Ring Nitrogen Heterocycles through Migratory Ring Expansion of Metalated Ureas. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201605714] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Jessica E. Hall
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
| | | | - John W. Ward
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
| | - Katharine V. Gray
- School of Chemistry; University of Manchester; Oxford Road Manchester M13 9PL UK
| | - Jonathan Clayden
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
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21
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Hall JE, Matlock JV, Ward JW, Gray KV, Clayden J. Medium-Ring Nitrogen Heterocycles through Migratory Ring Expansion of Metalated Ureas. Angew Chem Int Ed Engl 2016; 55:11153-7. [DOI: 10.1002/anie.201605714] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Jessica E. Hall
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
| | | | - John W. Ward
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
| | - Katharine V. Gray
- School of Chemistry; University of Manchester; Oxford Road Manchester M13 9PL UK
| | - Jonathan Clayden
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
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22
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Maury J, Clayden J. α-Quaternary Proline Derivatives by Intramolecular Diastereoselective Arylation of N-Carboxamido Proline Ester Enolates. J Org Chem 2015; 80:10757-68. [DOI: 10.1021/acs.joc.5b01912] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Julien Maury
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - Jonathan Clayden
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K
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23
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Fernández-Nieto F, Mas Roselló J, Lenoir S, Hardy S, Clayden J. Palladium Catalyzed C-Arylation of Amino Acid Derived Hydantoins. Org Lett 2015. [DOI: 10.1021/acs.orglett.5b01803] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
| | - Josep Mas Roselló
- School
of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - Simone Lenoir
- School
of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - Simon Hardy
- Syngenta
Ltd.,
Jealott’s Hill Research Centre, Bracknell,
Berkshire, RG42 6EY, U.K
| | - Jonathan Clayden
- School
of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K
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24
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Atkinson RC, Fernández-Nieto F, Mas Roselló J, Clayden J. Pseudoephedrine-Directed Asymmetric α-Arylation of α-Amino Acid Derivatives. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201502569] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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25
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Atkinson RC, Fernández-Nieto F, Mas Roselló J, Clayden J. Pseudoephedrine-Directed Asymmetric α-Arylation of α-Amino Acid Derivatives. Angew Chem Int Ed Engl 2015; 54:8961-5. [DOI: 10.1002/anie.201502569] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Revised: 05/06/2015] [Indexed: 11/10/2022]
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26
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Zhang F, Sun H, Song Z, Zhou S, Wen X, Xu QL, Sun H. Stereoselective Synthesis of Arylglycine Derivatives via Palladium-Catalyzed α-Arylation of a Chiral Nickel(II) Glycinate. J Org Chem 2015; 80:4459-64. [DOI: 10.1021/acs.joc.5b00314] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fan Zhang
- Jiangsu Key Laboratory of
Drug Discovery for Metabolic Diseases and State Key Laboratory of
Natural Medicines, China Pharmaceutical University, 24 Tongjia
Xiang, Nanjing 210009, China
| | - Hengzhi Sun
- Jiangsu Key Laboratory of
Drug Discovery for Metabolic Diseases and State Key Laboratory of
Natural Medicines, China Pharmaceutical University, 24 Tongjia
Xiang, Nanjing 210009, China
| | - Zhuang Song
- Jiangsu Key Laboratory of
Drug Discovery for Metabolic Diseases and State Key Laboratory of
Natural Medicines, China Pharmaceutical University, 24 Tongjia
Xiang, Nanjing 210009, China
| | - Shuxi Zhou
- Jiangsu Key Laboratory of
Drug Discovery for Metabolic Diseases and State Key Laboratory of
Natural Medicines, China Pharmaceutical University, 24 Tongjia
Xiang, Nanjing 210009, China
| | - Xiaoan Wen
- Jiangsu Key Laboratory of
Drug Discovery for Metabolic Diseases and State Key Laboratory of
Natural Medicines, China Pharmaceutical University, 24 Tongjia
Xiang, Nanjing 210009, China
| | - Qing-Long Xu
- Jiangsu Key Laboratory of
Drug Discovery for Metabolic Diseases and State Key Laboratory of
Natural Medicines, China Pharmaceutical University, 24 Tongjia
Xiang, Nanjing 210009, China
| | - Hongbin Sun
- Jiangsu Key Laboratory of
Drug Discovery for Metabolic Diseases and State Key Laboratory of
Natural Medicines, China Pharmaceutical University, 24 Tongjia
Xiang, Nanjing 210009, China
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27
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Vincent MA, Maury J, Hillier IH, Clayden J. Lithium Choreography Determines Contrasting Stereochemical Outcomes of Aryl Migrations in Benzylic Carbamates, Ureas and Thiocarbamates. European J Org Chem 2014. [DOI: 10.1002/ejoc.201403572] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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28
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Tait MB, Ottersbach PA, Tetlow DJ, Clayden J. Synthesis of 1-Arylcycloalkenamines by Intramolecular Arylation of Lithiated Ureas. Org Process Res Dev 2014. [DOI: 10.1021/op500173q] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Michael B. Tait
- School
of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | | | - Daniel J. Tetlow
- School
of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - Jonathan Clayden
- School
of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K
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29
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Shirakawa S, Yamamoto K, Tokuda T, Maruoka K. Phase-Transfer-Catalyzed Asymmetric α-Arylation of α-Amino Acid Derivatives. ASIAN J ORG CHEM 2014. [DOI: 10.1002/ajoc.201400004] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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30
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Mingat G, MacLellan P, Laars M, Clayden J. Tertiary Thiols from Allylic Thiocarbamates by Tandem Enantioselective [3,3]-Sigmatropic Rearrangement and Stereospecific Arylation. Org Lett 2014; 16:1252-5. [DOI: 10.1021/ol5002522] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Gaëlle Mingat
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - Paul MacLellan
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - Marju Laars
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - Jonathan Clayden
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K
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