1
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Liu D, Bardaud JX, Imani Z, Robin S, Gloaguen E, Brenner V, Aitken DJ, Mons M. Length-Dependent Transition from Extended to Folded Shapes in Short Oligomers of an Azetidine-Based α-Amino Acid: The Critical Role of NH···N H-Bonds. Molecules 2023; 28:5048. [PMID: 37446709 DOI: 10.3390/molecules28135048] [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: 05/30/2023] [Revised: 06/15/2023] [Accepted: 06/23/2023] [Indexed: 07/15/2023] Open
Abstract
Hydrogen bonds (H-bonds) are ubiquitous in peptides and proteins and are central to the stabilization of their structures. Inter-residue H-bonds between non-adjacent backbone amide NH and C=O motifs lead to the well-known secondary structures of helices, turns and sheets, but it is recognized that other H-bonding modes may be significant, including the weak intra-residue H-bond (called a C5 H-bond) that implicates the NH and C=O motifs of the same amino acid residue. Peptide model compounds that adopt stable C5 H-bonds are not readily available and the so-called 2.05-helix, formed by successive C5 H-bonds, is an elusive secondary structure. Using a combination of theoretical chemistry and spectroscopic studies in both the gas phase and solution phase, we have demonstrated that derivatives of 3-amino-1-methylazetidine-3-carboxylic acid, Aatc(Me) can form sidechain-backbone N-H···N C6γ H-bonds that accompany-and thereby stabilize-C5 H-bonds. In the capped trimer of Aatc(Me), extended C5/C6γ motifs are sufficiently robust to challenge classical 310-helix formation in solution and the fully-extended 2.05-helix conformer has been characterized in the gas phase. Concurrent H-bonding support for successive C5 motifs is a new axiom for stabilizing the extended backbone secondary structure in short peptides.
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Affiliation(s)
- Dayi Liu
- Université Paris-Saclay, CNRS, ICMMO, 91400 Orsay, France
| | | | - Zeynab Imani
- Université Paris-Saclay, CNRS, ICMMO, 91400 Orsay, France
| | - Sylvie Robin
- Université Paris-Saclay, CNRS, ICMMO, 91400 Orsay, France
- Université Paris Cité, Faculté de Pharmacie, 75006 Paris, France
| | - Eric Gloaguen
- Université Paris-Saclay, CEA, CNRS, LIDYL, 91191 Gif-sur-Yvette, France
| | - Valérie Brenner
- Université Paris-Saclay, CEA, CNRS, LIDYL, 91191 Gif-sur-Yvette, France
| | - David J Aitken
- Université Paris-Saclay, CNRS, ICMMO, 91400 Orsay, France
| | - Michel Mons
- Université Paris-Saclay, CEA, CNRS, LIDYL, 91191 Gif-sur-Yvette, France
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2
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Gudelis E, Krikštolaitytė S, Stančiauskaitė M, Šachlevičiūtė U, Bieliauskas A, Milišiūnaitė V, Jankauskas R, Kleizienė N, Sløk FA, Šačkus A. Synthesis of New Azetidine and Oxetane Amino Acid Derivatives through Aza-Michael Addition of NH-Heterocycles with Methyl 2-(Azetidin- or Oxetan-3-Ylidene)Acetates. Molecules 2023; 28:1091. [PMID: 36770762 PMCID: PMC9921373 DOI: 10.3390/molecules28031091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/11/2023] [Accepted: 01/17/2023] [Indexed: 01/24/2023] Open
Abstract
In this paper, a simple and efficient synthetic route for the preparation of new heterocyclic amino acid derivatives containing azetidine and oxetane rings was described. The starting (N-Boc-azetidin-3-ylidene)acetate was obtained from (N-Boc)azetidin-3-one by the DBU-catalysed Horner-Wadsworth-Emmons reaction, followed by aza-Michael addition with NH-heterocycles to yield the target functionalised 3-substituted 3-(acetoxymethyl)azetidines. Methyl 2-(oxetan-3-ylidene)acetate was obtained in a similar manner, which was further treated with various (N-Boc-cycloaminyl)amines to yield the target 3-substituted 3-(acetoxymethyl)oxetane compounds. The synthesis and diversification of novel heterocyclic amino acid derivatives were achieved through the Suzuki-Miyaura cross-coupling from the corresponding brominated pyrazole-azetidine hybrid with boronic acids. The structures of the novel heterocyclic compounds were confirmed via 1H-, 13C-, 15N-, and 19F-NMR spectroscopy, as well as HRMS investigations.
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Affiliation(s)
- Emilis Gudelis
- Institute of Synthetic Chemistry, Kaunas University of Technology, K. Baršausko g. 59, LT-51423 Kaunas, Lithuania
- Department of Organic Chemistry, Kaunas University of Technology, Radvilėnų pl. 19, LT-50254 Kaunas, Lithuania
| | - Sonata Krikštolaitytė
- Department of Organic Chemistry, Kaunas University of Technology, Radvilėnų pl. 19, LT-50254 Kaunas, Lithuania
| | - Monika Stančiauskaitė
- Department of Organic Chemistry, Kaunas University of Technology, Radvilėnų pl. 19, LT-50254 Kaunas, Lithuania
| | - Urtė Šachlevičiūtė
- Institute of Synthetic Chemistry, Kaunas University of Technology, K. Baršausko g. 59, LT-51423 Kaunas, Lithuania
| | - Aurimas Bieliauskas
- Institute of Synthetic Chemistry, Kaunas University of Technology, K. Baršausko g. 59, LT-51423 Kaunas, Lithuania
| | - Vaida Milišiūnaitė
- Institute of Synthetic Chemistry, Kaunas University of Technology, K. Baršausko g. 59, LT-51423 Kaunas, Lithuania
| | - Rokas Jankauskas
- Institute of Synthetic Chemistry, Kaunas University of Technology, K. Baršausko g. 59, LT-51423 Kaunas, Lithuania
| | - Neringa Kleizienė
- Institute of Synthetic Chemistry, Kaunas University of Technology, K. Baršausko g. 59, LT-51423 Kaunas, Lithuania
| | - Frank A. Sløk
- Vipergen ApS, Gammel Kongevej 23A, V DK-1610 Copenhagen, Denmark
| | - Algirdas Šačkus
- Institute of Synthetic Chemistry, Kaunas University of Technology, K. Baršausko g. 59, LT-51423 Kaunas, Lithuania
- Department of Organic Chemistry, Kaunas University of Technology, Radvilėnų pl. 19, LT-50254 Kaunas, Lithuania
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3
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Suraj, Swamy KCK. Ring-Expansion Reactions of Epoxy Amides and Enamides: Functionalized Azetidines, Dihydrofurans, Diazocanes, or Dioxa-3-azabicyclonon-4-enes? J Org Chem 2022; 87:6612-6629. [PMID: 35522603 DOI: 10.1021/acs.joc.2c00268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Functionalized azetidines, 2,3-dihydrofurans, or the unorthodox dioxa-3-azabicyclonone-4-ene motifs are the products from transition metal-free reaction between N-oxiranylmethyl benzenesulfonamide and β-chloro-cinnamaldehyde, depending on whether one uses either NaI/K2CO3 or LiBr/K2CO3. These ring expansion reactions involve enamide (X-ray evidence) derived from N-oxiranylmethyl benzenesulfonamide and β-chloro-cinnamaldehyde as an intermediate. The N-oxiranylmethyl benzenesulfonamide itself upon heating gives readily separable and crystalline isomeric diazocanes that can be characterized by X-ray crystallography.
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Affiliation(s)
- Suraj
- School of Chemistry, University of Hyderabad, Hyderabad, Telangana 500 046, India
| | - K C Kumara Swamy
- School of Chemistry, University of Hyderabad, Hyderabad, Telangana 500 046, India
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4
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Methyl 2-Amino-4-[1-(tert-butoxycarbonyl)azetidin-3-yl]-1,3-selenazole-5-carboxylate. MOLBANK 2021. [DOI: 10.3390/m1207] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Methyl 2-amino-4-[1-(tert-butoxycarbonyl)azetidin-3-yl]-1,3-selenazole-5-carboxylate as a newly functionalized heterocyclic amino acid was obtained via [3+2] cycloaddition. The structure of the novel 1,3-selenazole was unequivocally confirmed by detailed 1H, 13C, 15N, and 77Se NMR spectroscopic experiments, HRMS and elemental analysis.
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5
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Didier D, Reiners F. Uncommon Four-Membered Building Blocks - Cyclobutenes, Azetines and Thietes. CHEM REC 2021; 21:1144-1160. [PMID: 33734571 DOI: 10.1002/tcr.202100011] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 03/02/2021] [Accepted: 03/03/2021] [Indexed: 12/15/2022]
Abstract
Strained ring systems have gained considerable importance over the last few years for their implication in natural product syntheses or in drug discovery programs. We present herein a recollection of our work on the construction and functionalization of unsaturated four-membered carbo- and heterocycles in the context of the literature, as well as their applications in further reactions.
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Affiliation(s)
- Dorian Didier
- Department of Chemistry, Ludwig-Maximilians Universität, Butenandtstraße 5-13, 81377, Munich, Germany
| | - Felix Reiners
- Department of Chemistry, Ludwig-Maximilians Universität, Butenandtstraße 5-13, 81377, Munich, Germany
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6
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Abstract
Multiheteroatom-containing small-sized cyclic molecules such as 2-
iminothiazolidines are often found to possess beneficial pharmacological properties. In this
review article, the biological significance of 2-iminothiazolidines is discussed and the literature
reports published in the last 15 years spanning from 2006 to 2020 describing various
preparative routes to access 2-iminothiazolidine derivatives have been categorically and
chronologically described. The notable synthetic methods discussed here involve ringexpansion
transformations of nonactivated and activated aziridines, thiiranes, epoxides, and
other miscellaneous reactions.
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Affiliation(s)
- Aditya Bhattacharyya
- Department of Chemistry, Indian Institute of Technology Kanpur, 208016, Kanpur, Uttar Pradesh, India
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7
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Reiners F, Joseph E, Nißl B, Didier D. Stereoselective Access to Azetidine-Based α-Amino Acids and Applications to Small Peptide Synthesis. Org Lett 2020; 22:8533-8537. [PMID: 33052683 DOI: 10.1021/acs.orglett.0c03131] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Non-natural azetidine-based amino acids (Aze) present interesting features in protein engineering. A simple organometallic route toward unsaturated carboxylic acid precursors is presented. Subsequent metal-catalyzed asymmetric reduction allowed for the synthesis of a new library of 2-azetidinylcarboxylic acids, which were finally employed in the formation of small peptide chains.
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Affiliation(s)
- Felix Reiners
- Department of Chemistry and Pharmacy, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, 81377 Munich, Germany
| | - Emanuel Joseph
- Department of Chemistry and Pharmacy, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, 81377 Munich, Germany
| | - Benedikt Nißl
- Department of Chemistry and Pharmacy, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, 81377 Munich, Germany
| | - Dorian Didier
- Department of Chemistry and Pharmacy, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, 81377 Munich, Germany
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8
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Kovács E, Faigl F, Mucsi Z. Regio- and Diastereoselective Synthesis of 2-Arylazetidines: Quantum Chemical Explanation of Baldwin's Rules for the Ring-Formation Reactions of Oxiranes†. J Org Chem 2020; 85:11226-11239. [PMID: 32786621 PMCID: PMC7498157 DOI: 10.1021/acs.joc.0c01310] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
![]()
A general,
scalable two-step regio- and diastereoselective method
has been described for the synthesis of versatile alkaloid-type azetidines
from simple building blocks with excellent overall yields. In the
kinetically controlled reaction, only the formation of the strained
four-membered ring can be achieved instead of the thermodynamically
favorable five-membered rings under appropriate conditions. Remarkable
functional group tolerance has also been demonstrated. In this paper,
we give a new scope of Baldwin’s rules by density functional
theory (DFT) calculations with an explicit solvent model, confirming
the proposed reaction mechanisms and the role of kinetic controls
in the stereochemical outcome of the reported transition-metal-free
carbon–carbon bond formation reactions.
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Affiliation(s)
- Ervin Kovács
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest H-1117, Hungary.,MTA-BME Organic Chemical Technology Research Group, Budapest University of Technology and Economics, Budafoki út 8, H-1111 Budapest, Hungary.,Femtonics Ltd., Budapest H-1094, Hungary
| | - Ferenc Faigl
- MTA-BME Organic Chemical Technology Research Group, Budapest University of Technology and Economics, Budafoki út 8, H-1111 Budapest, Hungary
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9
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Andresini M, Degennaro L, Luisi R. The renaissance of strained 1-azabicyclo[1.1.0]butanes as useful reagents for the synthesis of functionalized azetidines. Org Biomol Chem 2020; 18:5798-5810. [DOI: 10.1039/d0ob01251c] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Since their discovery in the late 1960s, 1-azabicyclo[1.1.0]butanes have demonstrated to be interesting precursors of azetidines, because of the peculiar reactivity of the C3–N bond that allows double functionalization in the 1,3 positions.
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Affiliation(s)
- Michael Andresini
- Department of Pharmacy - Drug Sciences
- University of Bari “A. Moro” Via E. Orabona 4
- Bari 70125
- Italy
| | - Leonardo Degennaro
- Department of Pharmacy - Drug Sciences
- University of Bari “A. Moro” Via E. Orabona 4
- Bari 70125
- Italy
| | - Renzo Luisi
- Department of Pharmacy - Drug Sciences
- University of Bari “A. Moro” Via E. Orabona 4
- Bari 70125
- Italy
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10
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Liu J, Wang C. Zinc-Catalyzed Hydroxyl-Directed Regioselective Ring Opening of Aziridines in SN2 Reaction Pathway. ACS Catal 2019. [DOI: 10.1021/acscatal.9b04823] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jiawei Liu
- Hefei National Laboratory for Physical Science at the Microscale, Department of Chemistry, Center for Excellence in Molecular Synthesis, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, People’s Republic of China
| | - Chuan Wang
- Hefei National Laboratory for Physical Science at the Microscale, Department of Chemistry, Center for Excellence in Molecular Synthesis, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, People’s Republic of China
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11
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Iškauskienė M, Ragaitė G, Sløk FA, Šačkus A. Facile synthesis of novel amino acid-like building blocks by N-alkylation of heterocyclic carboxylates with N-Boc-3-iodoazetidine. Mol Divers 2019; 24:1235-1251. [PMID: 31420788 DOI: 10.1007/s11030-019-09987-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 08/08/2019] [Indexed: 01/11/2023]
Abstract
An efficient protocol providing easy access to highly functionalized heterocyclic compounds as novel organic building blocks was developed by coupling alkyl pyrazole-, indazole- and indolecarboxylates with N-Boc-3-iodoazetidine. The synthesized compounds are representatives of constrained non-chiral synthetic azole carboxylates in their N-Boc protected ester forms. Diversification of the prepared heterocyclic building blocks was achieved via application of palladium-catalyzed Suzuki-Miyaura cross-coupling reactions. In total, 34 building blocks were obtained to form a highly diversified small molecule collection. The structure of the novel heterocyclic compounds was investigated and verified by advanced NMR spectroscopy methods.
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Affiliation(s)
- Monika Iškauskienė
- Department of Organic Chemistry, Kaunas University of Technology, Radvilėnų pl. 19, 50254, Kaunas, Lithuania. .,Institute of Synthetic Chemistry, Kaunas University of Technology, K. Baršausko g. 59, 51423, Kaunas, Lithuania.
| | - Greta Ragaitė
- Institute of Synthetic Chemistry, Kaunas University of Technology, K. Baršausko g. 59, 51423, Kaunas, Lithuania
| | - Frank A Sløk
- Vipergen ApS, Gammel Kongevej 23A, 1610, Copenhagen V, Denmark
| | - Algirdas Šačkus
- Department of Organic Chemistry, Kaunas University of Technology, Radvilėnų pl. 19, 50254, Kaunas, Lithuania.,Institute of Synthetic Chemistry, Kaunas University of Technology, K. Baršausko g. 59, 51423, Kaunas, Lithuania
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12
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Dubois MAJ, Lazaridou A, Choi C, Mousseau JJ, Bull JA. Synthesis of 3-Aryl-3-Sulfanyl Azetidines by Iron-Catalyzed Thiol Alkylation with N-Cbz Azetidinols. J Org Chem 2019; 84:5943-5956. [PMID: 30973723 DOI: 10.1021/acs.joc.9b00613] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
New small-ring derivatives can provide valuable motifs in new chemical space for drug design. 3-Aryl-3-sulfanyl azetidines are synthesized directly from azetidine-3-ols in excellent yield by a mild Fe-catalyzed thiol alkylation. A broad range of thiols and azetidinols bearing electron-donating aromatics are successful, proceeding via an azetidine carbocation. The N-carboxybenzyl group is a requirement for good reactivity and enables the NH-azetidine to be revealed. Further reactions of the azetidine sulfides demonstrate their potential for incorporation in drug discovery programs.
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Affiliation(s)
- Maryne A J Dubois
- Department of Chemistry , Imperial College London, Molecular Sciences Research Hub, White City Campus , Wood Lane , London W12 0BZ , U.K
| | - Anna Lazaridou
- Department of Chemistry , Imperial College London, Molecular Sciences Research Hub, White City Campus , Wood Lane , London W12 0BZ , U.K
| | - Chulho Choi
- Pfizer Medicinal Sciences , 445 Eastern Point Road , Groton , Connecticut 06340 , United States
| | - James J Mousseau
- Pfizer Medicinal Sciences , 445 Eastern Point Road , Groton , Connecticut 06340 , United States
| | - James A Bull
- Department of Chemistry , Imperial College London, Molecular Sciences Research Hub, White City Campus , Wood Lane , London W12 0BZ , U.K
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13
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14
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Mehra V, Lumb I, Anand A, Kumar V. Recent advances in synthetic facets of immensely reactive azetidines. RSC Adv 2017. [DOI: 10.1039/c7ra08884a] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Recent developments in synthetic strategies towards functionalized azetidines along with their versatility as heterocyclic synthons.
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Affiliation(s)
- Vishu Mehra
- Department of Chemistry
- Hindu College
- Amritsar-143005
- India
| | - Isha Lumb
- Department of Chemistry
- Baring Union Christian College
- Batala-143505
- India
| | - Amit Anand
- Department of Chemistry
- Khalsa College
- Amritsar-143005
- India
| | - Vipan Kumar
- Department of Chemistry
- Guru Nanak Dev University
- Amritsar-143005
- India
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15
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Dolfen J, Yadav NN, De Kimpe N, D'hooghe M, Ha HJ. Bicyclic Aziridinium Ions in Azaheterocyclic Chemistry - Preparation and Synthetic Application of 1-Azoniabicyclo[n.1.0]alkanes. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600750] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jeroen Dolfen
- SynBioC Research Group, Department of Sustainable Organic Chemistry and Technology, Faculty of Bioscience Engineering; Ghent University; Coupure Links 653 B-9000 Ghent Belgium
| | - Nagendra Nath Yadav
- Department of Chemistry; Hankuk University of Foreign Studies; Yongin 449-791 Korea
| | - Norbert De Kimpe
- SynBioC Research Group, Department of Sustainable Organic Chemistry and Technology, Faculty of Bioscience Engineering; Ghent University; Coupure Links 653 B-9000 Ghent Belgium
| | - Matthias D'hooghe
- SynBioC Research Group, Department of Sustainable Organic Chemistry and Technology, Faculty of Bioscience Engineering; Ghent University; Coupure Links 653 B-9000 Ghent Belgium
| | - Hyun-Joon Ha
- Department of Chemistry; Hankuk University of Foreign Studies; Yongin 449-791 Korea
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16
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Semina E, Žukauskaitė A, Šačkus A, De Kimpe N, Mangelinckx S. Selective Elaboration of Aminodiols towards Small Ring α- and β-Amino Acid Derivatives that Incorporate an Aziridine, Azetidine, or Epoxide Scaffold. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600036] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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17
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Ghorai MK, Shahi CK, Bhattacharyya A, Sayyad M, Mal A, Wani IA, Chauhan N. Syntheses of Tetrahydrobenzodiazepines via SN2-Type Ring-Opening of Activated Aziridines with 2-Bromobenzylamine Followed by Copper-Powder-Mediated C−N Bond Formation. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201500224] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Manas K. Ghorai
- Department of Chemistry; Indian Institute of Technology Kanpur; Kanpur 208016, Uttar Pradesh India
| | - Chandan Kumar Shahi
- Department of Chemistry; Indian Institute of Technology Kanpur; Kanpur 208016, Uttar Pradesh India
| | - Aditya Bhattacharyya
- Department of Chemistry; Indian Institute of Technology Kanpur; Kanpur 208016, Uttar Pradesh India
| | - Masthanvali Sayyad
- Department of Chemistry; Indian Institute of Technology Kanpur; Kanpur 208016, Uttar Pradesh India
| | - Abhijit Mal
- Department of Chemistry; Indian Institute of Technology Kanpur; Kanpur 208016, Uttar Pradesh India
| | - Imtiyaz Ahmad Wani
- Department of Chemistry; Indian Institute of Technology Kanpur; Kanpur 208016, Uttar Pradesh India
| | - Navya Chauhan
- Department of Chemistry; Indian Institute of Technology Kanpur; Kanpur 208016, Uttar Pradesh India
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18
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Gavale KS, Chavan SR, Khan A, Joshi R, Dhavale DD. Azetidine- and N-carboxylic azetidine-iminosugars as amyloglucosidase inhibitors: synthesis, glycosidase inhibitory activity and molecular docking studies. Org Biomol Chem 2015; 13:6634-46. [DOI: 10.1039/c5ob00668f] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Azetidine and an unprecedented N-carboxylic azetidine iminosugars were synthesized from d-glucose, which showed prominent amyloglucosidase inhibitory activity.
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Affiliation(s)
- Kishor S. Gavale
- Department of Chemistry
- Garware Research Centre
- Savitribai Phule Pune University (formerly University of Pune)
- Pune
- India
| | - Shrawan R. Chavan
- Department of Chemistry
- Garware Research Centre
- Savitribai Phule Pune University (formerly University of Pune)
- Pune
- India
| | - Ayesha Khan
- Department of Chemistry
- Garware Research Centre
- Savitribai Phule Pune University (formerly University of Pune)
- Pune
- India
| | - Rakesh Joshi
- Institute of Bioinformatics and Biotechnology
- Savitribai Phule Pune University
- Pune 411007
- India
| | - Dilip D. Dhavale
- Department of Chemistry
- Garware Research Centre
- Savitribai Phule Pune University (formerly University of Pune)
- Pune
- India
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19
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Parisi G, Capitanelli E, Pierro A, Romanazzi G, Clarkson GJ, Degennaro L, Luisi R. Easy access to constrained peptidomimetics and 2,2-disubstituted azetidines by the unexpected reactivity profile of α-lithiated N-Boc-azetidines. Chem Commun (Camb) 2015; 51:15588-91. [DOI: 10.1039/c5cc06323j] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The unprecedented reactivity profile of lithiatedN-Boc-2-arylazetidines gave access either to new azetidine-based peptidomimetics or to the regioselective functionalization of the azetidine ring.
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Affiliation(s)
- Giovanna Parisi
- Department of Pharmacy – Drug Sciences
- University of Bari
- Bari 70125
- Italy
| | | | - Antonella Pierro
- Department of Pharmacy – Drug Sciences
- University of Bari
- Bari 70125
- Italy
| | | | | | | | - Renzo Luisi
- Department of Pharmacy – Drug Sciences
- University of Bari
- Bari 70125
- Italy
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20
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Ghorai MK, Sahoo AK, Bhattacharyya A. Syntheses of Imidazo-, Oxa-, and Thiazepine Ring Systems via Ring-Opening of Aziridines/Cu-Catalyzed C–N/C–C Bond Formation. J Org Chem 2014; 79:6468-79. [DOI: 10.1021/jo500888j] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Manas K. Ghorai
- Department of Chemistry, Indian Institute of Technology, Kanpur, Uttar Pradesh 208016, India
| | - Ashis Kumar Sahoo
- Department of Chemistry, Indian Institute of Technology, Kanpur, Uttar Pradesh 208016, India
| | - Aditya Bhattacharyya
- Department of Chemistry, Indian Institute of Technology, Kanpur, Uttar Pradesh 208016, India
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21
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Žukauskaitė A, Moretto A, Peggion C, De Zotti M, Šačkus A, Formaggio F, De Kimpe N, Mangelinckx S. Synthesis and Conformational Study of Model Peptides ContainingN-Substituted 3-Aminoazetidine-3-carboxylic Acids. European J Org Chem 2014. [DOI: 10.1002/ejoc.201301741] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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22
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De Kimpe N, Žukauskaitė A, Mangelinckx S, Šačkus A. Synthesis of Alkyl 3-Chloroazetidine-3-carboxylates via Regioselective Ring Transformation of Alkyl 2-(Bromomethyl)aziridine-2-carboxylates. HETEROCYCLES 2014. [DOI: 10.3987/com-13-s(s)35] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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23
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Shang Y, Liao K, He X, Hu J. One-pot synthesis of disulfide-linked N-sulfonylazetidin-2-imines via a copper-catalyzed multicomponent cascade reaction. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.09.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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24
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A compendium of cyclic sugar amino acids and their carbocyclic and heterocyclic nitrogen analogues. Amino Acids 2013; 45:613-89. [DOI: 10.1007/s00726-013-1521-1] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Accepted: 05/21/2013] [Indexed: 12/19/2022]
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25
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Ghorai MK, Tiwari DP, Jain N. Lewis Acid Catalyzed SN2-Type Ring Opening of N-Activated Aziridines with Electron-Rich Arenes/Heteroarenes. J Org Chem 2013; 78:7121-30. [DOI: 10.1021/jo401028j] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Manas K. Ghorai
- Department
of Chemistry, Indian Institute of Technology, Kanpur 208016, India
| | - Deo Prakash Tiwari
- Department
of Chemistry, Indian Institute of Technology, Kanpur 208016, India
| | - Nikita Jain
- Department
of Chemistry, Indian Institute of Technology, Kanpur 208016, India
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26
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Ghorai MK, Nanaji Y. Synthetic route to chiral indolines via ring-opening/C-N cyclization of activated 2-haloarylaziridines. J Org Chem 2013; 78:3867-78. [PMID: 23548056 DOI: 10.1021/jo400287a] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A practical approach for the synthesis of 3-substituted indolines via regio- and stereoselective SN2-type ring-opening of 2-(2-halophenyl)-N-tosylaziridines with heteroatomic nucleophiles (O, N, and S) followed by palladium-catalyzed intramolecular C-N cyclization is reported in excellent yields (up to >99%) and enantiomeric excess (ee 99%).
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Affiliation(s)
- Manas K Ghorai
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India.
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27
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Glawar AFG, Jenkinson SF, Thompson AL, Nakagawa S, Kato A, Butters TD, Fleet GWJ. 3-Hydroxyazetidine Carboxylic Acids: Non-Proteinogenic Amino Acids for Medicinal Chemists. ChemMedChem 2013; 8:658-66. [DOI: 10.1002/cmdc.201200541] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2012] [Revised: 02/14/2013] [Indexed: 11/09/2022]
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28
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Ghorai MK, Tiwari DP. Enantioselective Synthesis of 4,5-Dihydropyrroles via Domino Ring-Opening Cyclization (DROC) ofN-Activated Aziridines with Malononitrile. J Org Chem 2013; 78:2617-25. [DOI: 10.1021/jo302815m] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Manas K. Ghorai
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
| | - Deo Prakash Tiwari
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
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29
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Mollet K, Dhooghe M, De Kimpe N. Stereoselective synthesis of bicyclic tetrahydrofuran-fused ?-lactams and their conversion into methyl cis-3-aminotetrahydrofuran-2-carboxylates. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.01.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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30
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Lenagh-Snow GMJ, Araújo N, Jenkinson SF, Martínez RF, Shimada Y, Yu CY, Kato A, Fleet GWJ. Azetidine Iminosugars from the Cyclization of 3,5-Di-O-triflates of α-Furanosides and of 2,4-Di-O-triflates of β-Pyranosides Derived from Glucose. Org Lett 2012; 14:2142-5. [DOI: 10.1021/ol300669v] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Gabriel M. J. Lenagh-Snow
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford, OX1 3TA, U.K., Oxford Glycobiology Institute, University of Oxford, South Parks Road, Oxford, OX1 3QU, U.K., Department of Hospital Pharmacy, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan, and Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Noelia Araújo
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford, OX1 3TA, U.K., Oxford Glycobiology Institute, University of Oxford, South Parks Road, Oxford, OX1 3QU, U.K., Department of Hospital Pharmacy, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan, and Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Sarah F. Jenkinson
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford, OX1 3TA, U.K., Oxford Glycobiology Institute, University of Oxford, South Parks Road, Oxford, OX1 3QU, U.K., Department of Hospital Pharmacy, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan, and Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - R. Fernando Martínez
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford, OX1 3TA, U.K., Oxford Glycobiology Institute, University of Oxford, South Parks Road, Oxford, OX1 3QU, U.K., Department of Hospital Pharmacy, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan, and Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yousuke Shimada
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford, OX1 3TA, U.K., Oxford Glycobiology Institute, University of Oxford, South Parks Road, Oxford, OX1 3QU, U.K., Department of Hospital Pharmacy, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan, and Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Chu-Yi Yu
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford, OX1 3TA, U.K., Oxford Glycobiology Institute, University of Oxford, South Parks Road, Oxford, OX1 3QU, U.K., Department of Hospital Pharmacy, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan, and Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Atsushi Kato
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford, OX1 3TA, U.K., Oxford Glycobiology Institute, University of Oxford, South Parks Road, Oxford, OX1 3QU, U.K., Department of Hospital Pharmacy, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan, and Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - George W. J. Fleet
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford, OX1 3TA, U.K., Oxford Glycobiology Institute, University of Oxford, South Parks Road, Oxford, OX1 3QU, U.K., Department of Hospital Pharmacy, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan, and Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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31
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Mangelinckx S, De Sterck B, Colpaert F, Catak S, Jacobs J, Rooryck S, Waroquier M, Van Speybroeck V, De Kimpe N. Diastereoselective Aldol Reaction of Zincated 3-Chloro-3-methyl-1-azaallylic Anions as Key Step in the Synthesis of 1,2,3,4-Tetrasubstituted 3-Chloroazetidines. J Org Chem 2012; 77:3415-25. [DOI: 10.1021/jo300203t] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sven Mangelinckx
- Department of Sustainable Organic
Chemistry and Technology, Faculty of Bioscience Engineering, Ghent
University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Bart De Sterck
- Center for Molecular Modeling,
Ghent University, Technologiepark 903, B-9052 Zwijnaarde, Belgium,
Member of QCMM Alliance Ghent-Brussels
| | - Filip Colpaert
- Department of Sustainable Organic
Chemistry and Technology, Faculty of Bioscience Engineering, Ghent
University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Saron Catak
- Center for Molecular Modeling,
Ghent University, Technologiepark 903, B-9052 Zwijnaarde, Belgium,
Member of QCMM Alliance Ghent-Brussels
| | - Jan Jacobs
- Department of Sustainable Organic
Chemistry and Technology, Faculty of Bioscience Engineering, Ghent
University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Stijn Rooryck
- Department of Sustainable Organic
Chemistry and Technology, Faculty of Bioscience Engineering, Ghent
University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Michel Waroquier
- Center for Molecular Modeling,
Ghent University, Technologiepark 903, B-9052 Zwijnaarde, Belgium,
Member of QCMM Alliance Ghent-Brussels
| | - Veronique Van Speybroeck
- Center for Molecular Modeling,
Ghent University, Technologiepark 903, B-9052 Zwijnaarde, Belgium,
Member of QCMM Alliance Ghent-Brussels
| | - Norbert De Kimpe
- Department of Sustainable Organic
Chemistry and Technology, Faculty of Bioscience Engineering, Ghent
University, Coupure Links 653, B-9000 Ghent, Belgium
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32
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Stanković S, Goossens H, Catak S, Tezcan M, Waroquier M, Van Speybroeck V, D’hooghe M, De Kimpe N. Solvent-Controlled Selective Transformation of 2-Bromomethyl-2-methylaziridines to Functionalized Aziridines and Azetidines. J Org Chem 2012; 77:3181-90. [DOI: 10.1021/jo202637a] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sonja Stanković
- Department of Sustainable Organic
Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent,
Belgium
| | - Hannelore Goossens
- Center for Molecular
Modeling, Ghent University, Technologiepark
903, B-9052 Zwijnaarde,
Belgium, Member of QCMM-Alliance Ghent-Brussels
| | - Saron Catak
- Center for Molecular
Modeling, Ghent University, Technologiepark
903, B-9052 Zwijnaarde,
Belgium, Member of QCMM-Alliance Ghent-Brussels
| | - Meniz Tezcan
- Department of Sustainable Organic
Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent,
Belgium
| | - Michel Waroquier
- Center for Molecular
Modeling, Ghent University, Technologiepark
903, B-9052 Zwijnaarde,
Belgium, Member of QCMM-Alliance Ghent-Brussels
| | - Veronique Van Speybroeck
- Center for Molecular
Modeling, Ghent University, Technologiepark
903, B-9052 Zwijnaarde,
Belgium, Member of QCMM-Alliance Ghent-Brussels
| | - Matthias D’hooghe
- Department of Sustainable Organic
Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent,
Belgium
| | - Norbert De Kimpe
- Department of Sustainable Organic
Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent,
Belgium
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33
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Stanković S, D’hooghe M, Abbaspour Tehrani K, De Kimpe N. Synthesis of 3-functionalized 3-methylazetidines. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2011.10.097] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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34
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Ghorai MK, Sahoo AK, Kumar S. Synthetic route to chiral tetrahydroquinoxalines via ring-opening of activated aziridines. Org Lett 2011; 13:5972-5. [PMID: 22004011 DOI: 10.1021/ol2023906] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A highly regio- and stereoselective route for the synthesis of racemic and nonracemic tetrahydroquinoxalines via the S(N)2-type ring-opening of activated aziridines with 2-bromoanilines followed by the Pd-catalyzed intramolecular C-N bond formation is described.
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Affiliation(s)
- Manas K Ghorai
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
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35
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Editorial to the special issue foldamers. Amino Acids 2011; 41:537-9. [PMID: 21647663 DOI: 10.1007/s00726-011-0943-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2011] [Accepted: 05/12/2011] [Indexed: 10/18/2022]
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