1
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Zhang H, Xie S, Yang J, Ye N, Gao F, Gallou F, Gao L, Lei X. Chemoenzymatic Synthesis of 2-Aryl Thiazolines from 4-Hydroxybenzaldehydes Using Vanillyl Alcohol Oxidases. Angew Chem Int Ed Engl 2024; 63:e202405833. [PMID: 38748747 DOI: 10.1002/anie.202405833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Indexed: 07/16/2024]
Abstract
Nitrogen heterocycles are commonly found in bioactive natural products and drugs. However, the biocatalytic tools for nitrogen heterocycle synthesis are limited. Herein, we report the discovery of vanillyl alcohol oxidases (VAOs) as efficient biocatalysts for the one-pot synthesis of 2-aryl thiazolines from various 4-hydroxybenzaldehydes and aminothiols. The wild-type biocatalyst features a broad scope of 4-hydroxybenzaldehydes. Though the scope of aminothiols is limited, it could be improved via semi-rational protein engineering, generating a variant to produce previously inaccessible cysteine-derived bioactive 2-aryl thiazolines using the wild-type VAO. Benefiting from the derivatizable functional groups in the enzymatic products, we further chemically modified these products to expand the chemical space, offering a new chemoenzymatic strategy for the green and efficient synthesis of structurally diverse 2-aryl-thiazoline derivatives to prompt their use in drug discovery and catalysis.
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Affiliation(s)
- Haowen Zhang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, People's Republic of China
| | - Shuhan Xie
- Department of Biological Sciences, Xi'an Jiaotong-Liverpool University, Suzhou, 215123, People's Republic of China
| | - Jun Yang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, People's Republic of China
- Peking-Tsinghua Center for Life Science, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, People's Republic of China
| | - Ning Ye
- Chemical & Analytical Development, Suzhou Novartis Technical Development Co., Ltd., Changshu, 215537, People's Republic of China
- Current Address: Rezubio Pharmaceuticals Co., Ltd., Zhuhai, 519070, People's Republic of China
| | - Feng Gao
- Chemical & Analytical Development, Suzhou Novartis Technical Development Co., Ltd., Changshu, 215537, People's Republic of China
| | - Fabrice Gallou
- Chemical and Analytical Development, Novartis Pharma AG, Novartis Campus, Basel, 4056, Switzerland
| | - Lei Gao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, People's Republic of China
| | - Xiaoguang Lei
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, People's Republic of China
- Peking-Tsinghua Center for Life Science, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, People's Republic of China
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2
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Evenson GE, Powell WC, Hinds AB, Walczak MA. Catalytic Amide Activation with Thermally Stable Molybdenum(VI) Dioxide Complexes. J Org Chem 2023; 88:6192-6202. [PMID: 37027833 PMCID: PMC10422866 DOI: 10.1021/acs.joc.3c00218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2023]
Abstract
Oxazolines and thiazolines are important constituents of bioactive natural products and pharmaceuticals. Here, we report the development of an effective and practical method of oxazoline and thiazoline formation, which can facilitate the synthesis of natural products, chiral ligands, and pharmaceutical intermediates. This method capitalized on a Mo(VI) dioxide catalyst stabilized by substituted picolinic acid ligands, which is tolerant to many functional groups that would otherwise be sensitive to highly electrophilic alternative reagents.
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Affiliation(s)
- Garrett E Evenson
- University of Colorado, Department of Chemistry, Boulder, Colorado 80309, United States
| | - Wyatt C Powell
- University of Colorado, Department of Chemistry, Boulder, Colorado 80309, United States
| | - Aaron B Hinds
- University of Colorado, Department of Chemistry, Boulder, Colorado 80309, United States
| | - Maciej A Walczak
- University of Colorado, Department of Chemistry, Boulder, Colorado 80309, United States
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3
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Chai H, Zhen X, Wang X, Qi L, Qin Y, Xue J, Xu Z, Zhang H, Zhu W. Catalytic Synthesis of 5-Fluoro-2-oxazolines: Using BF 3·Et 2O as the Fluorine Source and Activating Reagent. ACS OMEGA 2022; 7:19988-19996. [PMID: 35721954 PMCID: PMC9202255 DOI: 10.1021/acsomega.2c01791] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 05/16/2022] [Indexed: 06/15/2023]
Abstract
Hypervalent iodine catalyst-catalyzed nucleophilic fluorination of unsaturated amides using BF3·Et2O as the fluorine source and activating reagent was reported. Various 5-fluoro-2-oxazoline derivatives were synthesized in good to excellent yields (up to 95% isolated yield) within 10 min. The process was efficient and metal-free under mild conditions. A mechanism involving a fluorination/1,2-aryl migration/cyclization cascade was proposed on the basis of previous work and experimental results.
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Affiliation(s)
- Hongli Chai
- Key
Laboratory of Preclinical Study for New Drugs of Gansu Province, School
of Basic Medical Science, Lanzhou University, Lanzhou 730000, China
| | - Xiang Zhen
- Key
Laboratory of Preclinical Study for New Drugs of Gansu Province, School
of Basic Medical Science, Lanzhou University, Lanzhou 730000, China
| | - Xueqing Wang
- Department
of Pharmacy, College of Life Sciences, China
Jiliang University, Hangzhou 310018, China
| | - Liang Qi
- Department
of Pharmacy, College of Life Sciences, China
Jiliang University, Hangzhou 310018, China
| | - Yuji Qin
- School
of Pharmaceutical Sciences, Sun Yat-Sen
University, Guangzhou 510006, China
| | - Jijun Xue
- Key
Laboratory of Preclinical Study for New Drugs of Gansu Province, School
of Basic Medical Science, Lanzhou University, Lanzhou 730000, China
| | - Zhaoqing Xu
- Key
Laboratory of Preclinical Study for New Drugs of Gansu Province, School
of Basic Medical Science, Lanzhou University, Lanzhou 730000, China
| | - Hongrui Zhang
- Key
Laboratory of Preclinical Study for New Drugs of Gansu Province, School
of Basic Medical Science, Lanzhou University, Lanzhou 730000, China
| | - Weiwei Zhu
- School
of Pharmaceutical Sciences, Sun Yat-Sen
University, Guangzhou 510006, China
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4
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Abstract
We developed an electrochemical carboamidation sequence that affords either cyclic β-amidoamine products via direct functionalization or linear hydroxybisamide products via a ring opening pathway. The reaction pathway was dependent on the nature of the N-acyl activating group, with carbamate groups favoring direct isocyanide addition to the N-acyliminium ion intermediate and the benzoyl activating group favoring the ring opening-functionalization pathway. Both protocols are one-pot reaction sequences, have general applicability, and lead to peptide-like products of greatly increased molecular complexity.
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Affiliation(s)
- Feijun Wang
- Center for Integrative Chemical Biology and Drug Discovery, UNC Eshelman School of Pharmacy, 125 Mason Farm Road, Chapel Hill, North Carolina 27599, United States
| | - Kevin J Frankowski
- Center for Integrative Chemical Biology and Drug Discovery, UNC Eshelman School of Pharmacy, 125 Mason Farm Road, Chapel Hill, North Carolina 27599, United States
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5
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Badillo-Gómez JI, Gouygou M, Ortega-Alfaro MC, López-Cortés JG. 2-Thiazolines: an update on synthetic methods and catalysis. Org Biomol Chem 2021; 19:7497-7517. [PMID: 34524345 DOI: 10.1039/d1ob01180d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
2-Thiazolines are important building blocks in organic synthesis and are of great importance in many areas of chemistry. At the end of the last century, the use of 2-thiazolines increased in a significant way, especially in synthesis and catalysis. This review highlights the synthetic and catalytic value of 2-thiazolines in the last two decades. We will discuss the new synthetic methodologies for obtaining these heterocycles including new schemes for accessing their asymmetric versions. Most of the new catalytic applications include a variety of 2-thiazoline ligands containing diverse donor atoms, which in combination with metals like Pd, Ir, and Cu, among others, exhibit remarkable catalytic performances.
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Affiliation(s)
- Joel I Badillo-Gómez
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Coyoacán C.P. 04510, CdMx, Mexico. .,CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, 205, route de Narbonne, 31077 Toulouse, France
| | - Maryse Gouygou
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, 205, route de Narbonne, 31077 Toulouse, France
| | - M Carmen Ortega-Alfaro
- Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Coyoacán, C.P. 04510, CdMx, Mexico.
| | - José G López-Cortés
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Coyoacán C.P. 04510, CdMx, Mexico.
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6
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Zhou X, Mao B, Zhang Z. Synthesis of 2-Oxazolines from Ring Opening Isomerization of 3-Amido-2-Phenyl Azetidines. Molecules 2021; 26:molecules26040857. [PMID: 33562033 PMCID: PMC7914936 DOI: 10.3390/molecules26040857] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 02/02/2021] [Accepted: 02/03/2021] [Indexed: 12/28/2022] Open
Abstract
Chiral 2-oxazolines are valuable building blocks and famous ligands for asymmetric catalysis. The most common synthesis involves the reaction of an amino alcohol with a carboxylic acid. In this paper, an efficient synthesis of 2-oxazolines has been achieved via the stereospecific isomerization of 3-amido-2-phenyl azetidines. The reactions were studied in the presence of both Brønsted and Lewis acids, and Cu(OTf)2 was found to be the most effective.
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7
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Petri L, Ábrányi-Balogh P, Varga PR, Imre T, Keserű GM. Comparative reactivity analysis of small-molecule thiol surrogates. Bioorg Med Chem 2020; 28:115357. [PMID: 32081630 DOI: 10.1016/j.bmc.2020.115357] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 01/21/2020] [Accepted: 01/30/2020] [Indexed: 12/12/2022]
Abstract
Targeted covalent inhibitors represent an increasingly popular approach to modulate challenging drug targets. Since covalent and non-covalent interactions are both contributing to the affinity of these compounds, evaluation of their reactivity is a key-step to find feasible warheads. There are well-established HPLC- and NMR-based kinetic assays to tackle this task, however, they use a variety of cysteine-surrogates including cysteamine, cysteine or acetyl-cysteine and GSH. The diverse nature of the thiol sources often makes the results incomparable that prevents compiling a comprehensive knowledge base for the design of covalent inhibitors. To evaluate kinetic measurements from different sources we performed a comparative analysis of the different thiol surrogates against a designed set of electrophilic fragments equipped with a range of warheads. Our study included seven different thiol models and 13 warheads resulting in a reactivity matrix analysed thoroughly. We found that the reactivity profile might be significantly different for various thiol models. Comparing the different warheads, we concluded that - in addition to its human relevance - glutathione (GSH) provided the best estimate of reactivity with highest number of true positives identified.
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Affiliation(s)
- László Petri
- Research Centre for Natural Sciences, Medicinal Chemistry Research Group, H-1117 Budapest, Magyar tudósok krt 2, Hungary
| | - Péter Ábrányi-Balogh
- Research Centre for Natural Sciences, Medicinal Chemistry Research Group, H-1117 Budapest, Magyar tudósok krt 2, Hungary
| | - Petra Regina Varga
- Research Centre for Natural Sciences, Medicinal Chemistry Research Group, H-1117 Budapest, Magyar tudósok krt 2, Hungary
| | - Tímea Imre
- Research Centre for Natural Sciences, MS Metabolomics Research Group, H-1117 Budapest, Magyar tudósok krt 2, Hungary
| | - György Miklós Keserű
- Research Centre for Natural Sciences, Medicinal Chemistry Research Group, H-1117 Budapest, Magyar tudósok krt 2, Hungary.
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8
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Zhao R, Yan M, Zhang R, Ma Y, Chen J. CuBr
2
‐promoted Cyclocondensation of Amidines with Aminoalcohols/Aminothiols for the Synthesis of 2‐Oxazolines, 2‐Oxazines and 2‐Thiazolines under Solvent‐free Conditions. ChemistrySelect 2019. [DOI: 10.1002/slct.201903329] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Rui Zhao
- School of Pharmaceutical ScienceZhejiang Chinese Medical University Hangzhou 310053, P R China
| | - Min Yan
- School of Pharmaceutical ScienceZhejiang Chinese Medical University Hangzhou 310053, P R China
| | - Ruiqin Zhang
- School of Pharmaceutical ScienceZhejiang Chinese Medical University Hangzhou 310053, P R China
| | - Yongmin Ma
- School of Pharmaceutical ScienceZhejiang Chinese Medical University Hangzhou 310053, P R China
- School of Pharmaceutical and Chemical EngineeringTaizhou University Taizhou 318000, P R China
| | - Jing Chen
- School of Pharmaceutical ScienceZhejiang Chinese Medical University Hangzhou 310053, P R China
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9
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Ma W, Zhang X, Fan J, Liu Y, Tang W, Xue D, Li C, Xiao J, Wang C. Iron-Catalyzed Anti-Markovnikov Hydroamination and Hydroamidation of Allylic Alcohols. J Am Chem Soc 2019; 141:13506-13515. [DOI: 10.1021/jacs.9b05221] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Wei Ma
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, 710062, China
| | - Xiaohui Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, 710062, China
| | - Juan Fan
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, 710062, China
| | - Yuxuan Liu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, 710062, China
| | - Weijun Tang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, 710062, China
| | - Dong Xue
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, 710062, China
| | - Chaoqun Li
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, 710062, China
| | - Jianliang Xiao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, 710062, China
- Department of Chemistry, University of Liverpool, Liverpool, L69 7ZD, U.K
| | - Chao Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, 710062, China
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10
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Verbraeken B, Hullaert J, van Guyse J, Van Hecke K, Winne J, Hoogenboom R. The Elusive Seven-Membered Cyclic Imino Ether Tetrahydrooxazepine. J Am Chem Soc 2018; 140:17404-17408. [DOI: 10.1021/jacs.8b10918] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Bart Verbraeken
- Supramolecular Chemistry group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, 9000 Ghent, Belgium
| | - Jan Hullaert
- Organic Synthesis group, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, 9000 Ghent, Belgium
| | - Joachim van Guyse
- Supramolecular Chemistry group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, 9000 Ghent, Belgium
| | - Kristof Van Hecke
- XStruct, Department of Chemistry, Ghent University, Krijgslaan 281 S3, 9000 Ghent, Belgium
| | - Johan Winne
- Organic Synthesis group, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, 9000 Ghent, Belgium
| | - Richard Hoogenboom
- Supramolecular Chemistry group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, 9000 Ghent, Belgium
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11
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Geranurimi A, Lubell WD. Diversity-Oriented Syntheses of β-Substituted α-Amino γ-Lactam Peptide Mimics with Constrained Backbone and Side Chain Residues. Org Lett 2018; 20:6126-6129. [PMID: 30230341 DOI: 10.1021/acs.orglett.8b02575] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
α- N-(Fmoc)Amino-γ-lactam dipeptides with a variety of β-substituents were synthesized stereoselectively with minimal β-elimination by routes employing, respectively, Mitsunobu chemistry and cyclic sulfamidate nucleophilic ring opening from trans- and cis-β-hydroxy-α-amino-γ-lactam precursors. This diversity-oriented method provides stereochemically pure dipeptide mimics bearing Cys, Ser, Thr, Dap, Dab, His, and other amino acid residues with constrained backbone and side chain conformations.
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Affiliation(s)
- Azade Geranurimi
- Département de Chimie , Université de Montréal , C.P. 6128, Succursale Centre-Ville , Montréal , Québec H3C 3J7 , Canada
| | - William D Lubell
- Département de Chimie , Université de Montréal , C.P. 6128, Succursale Centre-Ville , Montréal , Québec H3C 3J7 , Canada
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12
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Sammor MS, Hussein AQ, Awwadi FF, El-Abadelah MM. One-pot synthesis of novel 3,10-dihydro-2H-1,3-oxazepino[7,6-b]indoles via 1,4-dipolar cycloaddition reaction. Tetrahedron 2018. [DOI: 10.1016/j.tet.2017.11.031] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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M. El-Abadelah M, S. Sammor M, Q. Hussein A, F. Awwadi F. Novel One-Pot Synthesis of Dihydroacenaphtho[1,2-f][1,3]oxazepines via 1,4-Dipolar Cycloaddition Reaction. HETEROCYCLES 2018. [DOI: 10.3987/com-17-13862] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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14
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Marichev KO, Garcia EC, Bhowmick KC, Wherritt DJ, Arman H, Doyle MP. Highly selective acylation of polyamines and aminoglycosides by 5-acyl-5-phenyl-1,5-dihydro-4 H-pyrazol-4-ones. Chem Sci 2017; 8:7152-7159. [PMID: 29081946 PMCID: PMC5635523 DOI: 10.1039/c7sc03184j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 08/29/2017] [Indexed: 12/03/2022] Open
Abstract
5-Acyl-5-phenyl-1,5-dihydro-4H-pyrazol-4-ones, accessible from arylpropargyl phenyldiazoacetates, are highly selective acyl transfer reagents for di- and polyamines, as well as aminoalcohols and aminothiols. As reagents with a carbon-based leaving group, they have been applied for benzoyl transfer with a broad selection of substrates containing aliphatic amino in combination with other competing nucleophilic functional groups. The substrate scope and levels of selectivity for direct benzoyl transfer exceed those of known benzoylating reagents. With exceptional selectivity for acylation between primary amines bound to primary and secondary carbons, these new reagents have been used in direct site-selective monobenzoylation of aminoglycoside antibiotics.
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Affiliation(s)
- Kostiantyn O Marichev
- Department of Chemistry , The University of Texas at San Antonio , San Antonio , Texas 78249 , USA .
| | - Estevan C Garcia
- Department of Chemistry , The University of Texas at San Antonio , San Antonio , Texas 78249 , USA .
| | - Kartick C Bhowmick
- Department of Chemistry , The University of Texas at San Antonio , San Antonio , Texas 78249 , USA .
| | - Daniel J Wherritt
- Department of Chemistry , The University of Texas at San Antonio , San Antonio , Texas 78249 , USA .
| | - Hadi Arman
- Department of Chemistry , The University of Texas at San Antonio , San Antonio , Texas 78249 , USA .
| | - Michael P Doyle
- Department of Chemistry , The University of Texas at San Antonio , San Antonio , Texas 78249 , USA .
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15
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Vishwanatha TM, Kurpiewska K, Kalinowska-Tłuścik J, Dömling A. Cysteine Isocyanide in Multicomponent Reaction: Synthesis of Peptido-Mimetic 1,3-Azoles. J Org Chem 2017; 82:9585-9594. [PMID: 28817272 PMCID: PMC5603900 DOI: 10.1021/acs.joc.7b01615] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
An alternative approach toward the
simple and robust synthesis
of highly substituted peptidic thiazole derivatives using Ugi-multicomponent
reaction (U-MCR) is described. Thus, we introduced the enantiopure
(R)-2-methyl-2-isocyano-3-(tritylthio)propanoate
as a novel class of isocyanide in MCR. This bifunctional isocyanide
was found to undergo mild cyclodehydration to afford thiazole containing
peptidomimetics in a short synthetic sequence. Several examples of
bis-heterocyclic rings were also synthesized through the proper choice
of the aldehyde component in the U-4CR. The method opens a wide range
of applications toward the synthesis of nonribosomal natural products
and other bioactive compounds.
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Affiliation(s)
- Thimmalapura M Vishwanatha
- University of Groningen , Department of Drug Design, A. Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Katarzyna Kurpiewska
- Jagiellonian University , Department of Crystal Chemistry and Crystal Physics, Ingardena 3, 30-060 Krakow, Poland
| | - Justyna Kalinowska-Tłuścik
- Jagiellonian University , Department of Crystal Chemistry and Crystal Physics, Ingardena 3, 30-060 Krakow, Poland
| | - Alexander Dömling
- University of Groningen , Department of Drug Design, A. Deusinglaan 1, 9713 AV Groningen, The Netherlands
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16
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17
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Mollo MC, Orelli LR. Microwave-Assisted Synthesis of 2-Aryl-2-oxazolines, 5,6-Dihydro-4H-1,3-oxazines, and 4,5,6,7-Tetrahydro-1,3-oxazepines. Org Lett 2016; 18:6116-6119. [DOI: 10.1021/acs.orglett.6b03122] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- María C. Mollo
- Universidad de Buenos Aires, CONICET, Departamento de Química Orgánica,
Facultad de Farmacia y Bioquímica, Junín 956, 1113 Buenos Aires, Argentina
| | - Liliana R. Orelli
- Universidad de Buenos Aires, CONICET, Departamento de Química Orgánica,
Facultad de Farmacia y Bioquímica, Junín 956, 1113 Buenos Aires, Argentina
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18
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Taouss C, Jones PG. Phosphanchalkogenide und ihre Metallkomplexe. IV. Halogenierungsprodukte der Gold(I)halogenidkomplexe einiger Diphosphanmonochalkogenide. ACTA ACUST UNITED AC 2016. [DOI: 10.1515/znb-2015-0193] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Diphosphanegold(I) complexes of the form dppmEAuX [dppm = bis(diphenylphosphano)methane, E = S, Se; X = Br, I], dppeEAuX [dppe = 1,2-bis(diphenylphosphano)ethane; E = O, S; X = Br, I] and dppbzEAuX [dppbz = 1,2-bis(diphenylphosphano)benzene; E = S, Se, X = Br, I] were treated with elemental X2. With dppm, the three products [dppmEAuX2]+X3
– (E = S, X = Br (1), I (2); E = Se, X = I (3) were obtained in quantitative yield. These are gold(III) complexes involving a five-membered ring . With dppe, the only related product was [dppeEAuBr2]+Br3
– (4), in which the central ring is six-membered with two carbon atoms. These dppe systems are very sensitive to oxidation/hydrolysis of the ligand, and several such unintended products were isolated and identified. The reaction of dppbzSAuBr with bromine leads to [dppbzS]2+[AuBr4]–Br– (5), the dication of which is formally 1,1,3,3-tetraphenylbenzo[d]-2-thia-1, 3-diphosphol-1,3-diium and contains a central five-membered ring . The dications are associated with the bromide anions via S…Br contacts of ca. 3.1 Å to form inversion-symmetric S2Br2 rings. The halogenation of the dppbzSe derivatives leads to loss of selenium and formation of dppbzAuBr3 (6), with [4+1] coordination at gold, or the known compound [dppbzAuI2]+I3
– (7). All products 1–6 were subjected to X-ray diffraction analyses, as were four hydrolysis products 4a–d and two further by-products [5(thtBr+)·2Br3
–·3(AuBr4
–)] (1a) and (tht)AuBr3 (1b). Compound 1a displays unusually short Br…Br contacts of 3.2398(8) Å between neighbouring tetrabromidoaurate(III) ions.
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Affiliation(s)
- Christina Taouss
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Postfach 3329, D-38023 Braunschweig, Germany
| | - Peter G. Jones
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Postfach 3329, D-38023 Braunschweig, Germany
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19
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Ebrahimi S, Saiadi S, Dakhilpour S, Mirsattari SN, Massah AR. N-Acyl-N-(4-chlorophenyl)-4-nitrobenzenesulfonamides: highly selective and efficient reagents for acylation of amines in water. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2015. [DOI: 10.1515/znb-2015-0076] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
A variety of N-acyl-N-(4-chlorophenyl)-4-nitrobenzenesulfonamides (1a–e) were synthesized in one pot from 4-chloroaniline under solvent-free conditions and have been developed as chemoselective N-acylation reagents. Selective protection of primary amines in the presence of secondary amines, acylation of aliphatic amines in the presence of aryl amines, and monofunctionalization of primary-secondary diamines as well as selective N-acylation of amino alcohols using these reagents are described. All of the acylation reactions were carried out in water as a green solvent. High stability and easy preparation of these acylating reagents are other advantages of this method.
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Affiliation(s)
- Sara Ebrahimi
- Department of Chemistry, Shahreza Branch, Islamic Azad University, Shahreza, Isfahan 86145-311, Iran
| | - Safoura Saiadi
- Department of Chemistry, Shahreza Branch, Islamic Azad University, Shahreza, Isfahan 86145-311, Iran
| | - Simin Dakhilpour
- Department of Chemistry, Shahreza Branch, Islamic Azad University, Shahreza, Isfahan 86145-311, Iran
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20
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Trose M, Lazreg F, Lesieur M, Cazin CSJ. Copper N-Heterocyclic Carbene Complexes As Active Catalysts for the Synthesis of 2-Substituted Oxazolines from Nitriles and Aminoalcohols. J Org Chem 2015; 80:9910-4. [PMID: 26423118 DOI: 10.1021/acs.joc.5b01382] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The reaction between nitriles and aminoalcohols to access 2-substituted oxazolines was investigated. Using copper-NHC complexes, various nitriles were successfully converted into the corresponding oxazolines, under milder and less wasteful conditions than those of previously reported methods.
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Affiliation(s)
- Michael Trose
- EaStCHEM School of Chemistry, University of St. Andrews , St. Andrews, KY16 9ST, U.K
| | - Faïma Lazreg
- EaStCHEM School of Chemistry, University of St. Andrews , St. Andrews, KY16 9ST, U.K
| | - Mathieu Lesieur
- EaStCHEM School of Chemistry, University of St. Andrews , St. Andrews, KY16 9ST, U.K
| | - Catherine S J Cazin
- EaStCHEM School of Chemistry, University of St. Andrews , St. Andrews, KY16 9ST, U.K
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21
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Zhang J, Yan CG. Synthesis of spirocyclic 1,3-oxazines via three-component reactions of α,β-unsaturated N-arylaldimines, dialkyl acetylenedicarboxylate and quinones. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.07.051] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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22
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Pathak U, Bhattacharyya S, Mathur S. Selective thioacylation of amines in water: a convenient preparation of secondary thioamides and thiazolines. RSC Adv 2015. [DOI: 10.1039/c4ra13097a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Preparation of secondary thioamides and thiazolines via formation of β-hydroxythioamides from primary thioamides and aminoethanol in water.
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Affiliation(s)
- Uma Pathak
- Synthetic Chemistry Division
- Defence R & D Establishment
- Gwalior-474002
- India
| | | | - Sweta Mathur
- Synthetic Chemistry Division
- Defence R & D Establishment
- Gwalior-474002
- India
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23
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Schweiker SS, Loughlin WA, Lohning AS, Petersson MJ, Jenkins ID. Synthesis, screening and docking of small heterocycles as Glycogen Phosphorylase inhibitors. Eur J Med Chem 2014; 84:584-94. [DOI: 10.1016/j.ejmech.2014.07.063] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Revised: 07/17/2014] [Accepted: 07/19/2014] [Indexed: 10/25/2022]
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24
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Saikia UP, Baruah D, Pahari P, Borah MJ, Goswami A, Konwar D. A facile microwave assisted synthesis of spiro-1,3-oxazines from N-(2-(cyclohex-1-en-1-yl)ethyl)amides. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.06.042] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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25
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Zhu YM, Shen JK, Wang JM, Jiang X, Tang T. Nickel-Catalyzed Ligand-Free Systhesis of Benzoxazoles and Oxazolines via Isocyanide Insertion. HETEROCYCLES 2014. [DOI: 10.3987/com-14-12996] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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26
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Galano JJ, Alías M, Pérez R, Velázquez-Campoy A, Hoffman PS, Sancho J. Improved Flavodoxin Inhibitors with Potential Therapeutic Effects against Helicobacter pylori Infection. J Med Chem 2013; 56:6248-58. [DOI: 10.1021/jm400786q] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Juan J. Galano
- Departamento
de Bioquímica
y Biología Molecular y Celular, Facultad de Ciencias, Universidad de Zaragoza, 50009, Zaragoza, Spain
- Institute for Biocomputation and Physics of Complex Systems (BIFI), Joint Unit BIFI-IQFR (CSIC), Edificio I + D, Mariano Esquillor, 50018, Zaragoza, Spain
| | - Miriam Alías
- Departamento
de Bioquímica
y Biología Molecular y Celular, Facultad de Ciencias, Universidad de Zaragoza, 50009, Zaragoza, Spain
- Institute for Biocomputation and Physics of Complex Systems (BIFI), Joint Unit BIFI-IQFR (CSIC), Edificio I + D, Mariano Esquillor, 50018, Zaragoza, Spain
| | - Reyes Pérez
- Departamento
de Bioquímica
y Biología Molecular y Celular, Facultad de Ciencias, Universidad de Zaragoza, 50009, Zaragoza, Spain
- Institute for Biocomputation and Physics of Complex Systems (BIFI), Joint Unit BIFI-IQFR (CSIC), Edificio I + D, Mariano Esquillor, 50018, Zaragoza, Spain
| | - Adrian Velázquez-Campoy
- Departamento
de Bioquímica
y Biología Molecular y Celular, Facultad de Ciencias, Universidad de Zaragoza, 50009, Zaragoza, Spain
- Institute for Biocomputation and Physics of Complex Systems (BIFI), Joint Unit BIFI-IQFR (CSIC), Edificio I + D, Mariano Esquillor, 50018, Zaragoza, Spain
- Fundación ARAID, Gobierno de Aragon, Aragon, Spain
| | - Paul S. Hoffman
- Department of Medicine, Division
of Infectious Diseases and International Health, University of Virginia Health System, Charlottesville, Virginia
22908, United States
| | - Javier Sancho
- Departamento
de Bioquímica
y Biología Molecular y Celular, Facultad de Ciencias, Universidad de Zaragoza, 50009, Zaragoza, Spain
- Institute for Biocomputation and Physics of Complex Systems (BIFI), Joint Unit BIFI-IQFR (CSIC), Edificio I + D, Mariano Esquillor, 50018, Zaragoza, Spain
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27
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Wu XF, Neumann H, Neumann S, Beller M. A General and Efficient Palladium-Catalyzed Carbonylative Synthesis of 2-Aryloxazolines and 2-Aryloxazines from Aryl Bromides. Chemistry 2012; 18:13619-23. [DOI: 10.1002/chem.201202652] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2012] [Indexed: 11/10/2022]
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28
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Pouliot MF, Angers L, Hamel JD, Paquin JF. Synthesis of 2-oxazolines and related N-containing heterocycles using [Et2NSF2]BF4 as a cyclodehydration agent. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.05.130] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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29
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Chakor NS, Dallavalle S, Musso L, Sardi P. Synthesis and evaluation of structural requirements for antifungal activity of cyrmenin B1 analogues. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2011.11.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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30
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Affiliation(s)
- Jing Liu
- a State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, Faculty of Science , Beijing University of Chemical Technology , Beijing, China
| | - Shili Hou
- a State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, Faculty of Science , Beijing University of Chemical Technology , Beijing, China
| | - Jiaxi Xu
- a State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, Faculty of Science , Beijing University of Chemical Technology , Beijing, China
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31
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Bloksma MM, Schubert US, Hoogenboom R. Poly(cyclic imino ether)s beyond 2-substituted-2-oxazolines. Macromol Rapid Commun 2011; 32:1419-41. [PMID: 21714027 DOI: 10.1002/marc.201100138] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2011] [Revised: 04/22/2011] [Indexed: 11/11/2022]
Abstract
2-Oxazolines (2-OZO) are 5-membered cyclic imino ethers whose cationic ring-opening polymerization (CROP) mechanism and resulting polymer properties are extensively studied. However, also 6- and 7-membered cyclic imino ethers can be polymerized via CROP. Together with the much less studied 4- and 5-substituted main-chain chiral poly(2-oxazoline)s (P-2-OZO), these compounds are interesting monomers to enhance the versatility of (co)poly(cyclic imino ether)s. To emphasize the potential of such alternative cyclic imino ether monomers, we provide an overview on the polymerizations of 2-oxazine (2-OZI) and chiral 4- and 5-substituted 2-OZO as well as of selected properties of the resulting polymers. In addition, the hydrolysis of these polymers into the corresponding poly(alkylene imine)s will be addressed.
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Affiliation(s)
- Meta M Bloksma
- Laboratory of Macromolecular Chemistry and Nanoscience, Eindhoven University of Technology, The Netherlands
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32
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Xu Q, Li Z, Chen H. A Convenient Synthesis of 2-Oxazolines and 2-Benoxazoles with PPh3-DDQ as the Dehydrating Reagent. CHINESE J CHEM 2011. [DOI: 10.1002/cjoc.201190190] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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33
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Davis TA, Johnston JN. Catalytic, Enantioselective Synthesis of Stilbene cis-Diamines: A Concise Preparation of (-)-Nutlin-3, a Potent p53/MDM2 Inhibitor. Chem Sci 2011; 2:1076-1079. [PMID: 22708054 DOI: 10.1039/c1sc00061f] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The first highly diastereo- and enantioselective additions of aryl nitromethane pronucleophiles to aryl aldimines are described. Identification of an electron rich chiral Bis(Amidine) catalyst for this aza-Henry variant was key to this development, leading ultimately to differentially protected cis-stilbene diamines in two steps. This method then became the lynchpin for an enantioselective synthesis of (-)-Nutlin-3 (Hoffmann-LaRoche), a potent cis-imidazoline small molecule inhibitor of p53-MDM2 used extensively as a probe of cell biology and currently in drug development.
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Affiliation(s)
- Tyler A Davis
- Department of Chemistry & Vanderbilt Institute of Chemical Biology Vanderbilt University, Nashville, TN 37235-1822, , Homepage: http://www.johnstonchemistry.org
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34
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35
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Reddy DN, Prabhakaran EN. Synthesis and Isolation of 5,6-Dihydro-4H-1,3-Oxazine Hydrobromides by Autocyclization of N-(3-Bromopropyl)amides. J Org Chem 2010; 76:680-3. [DOI: 10.1021/jo101955q] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Damodara N. Reddy
- Department of Organic Chemistry, Indian Institute of Science, Bangalore, India 560012
| | - Erode N. Prabhakaran
- Department of Organic Chemistry, Indian Institute of Science, Bangalore, India 560012
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