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Fu X, Wenholz D, Chan DSH, Black DS, Kumar N. Rational Design, Synthesis, and Anti-Proliferative Evaluation of Novel 4-Aryl-3,4-Dihydro-2 H-1,4-Benzoxazines. Molecules 2023; 29:166. [PMID: 38202749 PMCID: PMC10780242 DOI: 10.3390/molecules29010166] [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: 10/31/2023] [Revised: 11/30/2023] [Accepted: 12/23/2023] [Indexed: 01/12/2024] Open
Abstract
A synthetic pathway to a novel 4-aryl-3,4-dihydro-2H-1,4-benzoxazine scaffold was developed and a series of compounds based on the scaffold were synthesised as potential anticancer agents. The 4-aryl-substituted compounds were prepared via Buchwald-Hartwig cross-coupling between substituted bromobenzenes and various 1,4-benzoxazines, which in turn were generated from a cascade hydrogenation and reductive amination one-pot reaction. These analogues exhibited moderate to good potency against various cancer cell lines. Structure-activity relationship analysis indicated that the inclusion of hydroxyl groups on ring A and ring B was beneficial to biological activity, while having a para-amino group on ring C significantly enhanced potency. Molecule 14f displayed the most potent anticancer activity (IC50 = 7.84-16.2 µM against PC-3, NHDF, MDA-MB-231, MIA PaCa-2, and U-87 MG cancer cell lines), indicating its potential as a lead compound for further structural optimisation. All the synthesised compounds were fully characterised with NMR, HMRS, and IR. The novel benzoxazine scaffold described in this study holds promise and deserves further in-depth studies.
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Affiliation(s)
| | | | | | | | - Naresh Kumar
- School of Chemistry, University of New South Wales (UNSW), Kensington, Sydney 2052, Australia (D.S.B.)
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2
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Wagener T, Pierau M, Heusler A, Glorius F. Synthesis of Saturated N-Heterocycles via a Catalytic Hydrogenation Cascade. Adv Synth Catal 2022; 364:3366-3371. [PMID: 36589139 PMCID: PMC9796080 DOI: 10.1002/adsc.202200601] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Indexed: 01/04/2023]
Abstract
Saturated N-heterocycles are prominent motifs found in various natural products and pharmaceuticals. Despite the increasing interest in this class of compounds, the synthesis of saturated bicyclic azacycles requires tedious multi-step syntheses. Herein, we present a one-pot protocol for the synthesis of octahydroindoles, decahydroquinolines, and octahydroindolizines through a cascade reaction.
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Affiliation(s)
- Tobias Wagener
- Westfälische Wilhelms-Universität MünsterOrganisch-Chemisches InstitutCorrensstraße 4048149MünsterGermany
| | - Marco Pierau
- Westfälische Wilhelms-Universität MünsterOrganisch-Chemisches InstitutCorrensstraße 4048149MünsterGermany
| | - Arne Heusler
- Westfälische Wilhelms-Universität MünsterOrganisch-Chemisches InstitutCorrensstraße 4048149MünsterGermany
| | - Frank Glorius
- Westfälische Wilhelms-Universität MünsterOrganisch-Chemisches InstitutCorrensstraße 4048149MünsterGermany
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3
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Dong K, Jin XL, Chen S, Wu LZ, Liu Q. Controllable synthesis of 2- and 3-aryl-benzomorpholines from 2-aminophenols and 4-vinylphenols. Chem Commun (Camb) 2020; 56:7941-7944. [PMID: 32531007 DOI: 10.1039/d0cc02662j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present herein a method for the controllable synthesis of 3-aryl-benzomorpholine and 2-aryl-benzomorpholine cycloadducts via cross-coupling/annulation between electron-rich 2-aminophenols and 4-vinylphenols. Molecular oxygen was successfully used in the reaction as the terminal oxidant and the complete inversion of chemoselectivity was achieved by the adjustment of the solvents and bases at room temperature.
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Affiliation(s)
- Kui Dong
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, 222 South Tianshui Road, Lanzhou 730000, P. R. China.
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4
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Jia W, Xi Q, Liu T, Yang M, Chen Y, Yin D, Wang X. One-Pot Synthesis of O-Heterocycles or Aryl Ketones Using an InCl3/Et3SiH System by Switching the Solvent. J Org Chem 2019; 84:5141-5149. [DOI: 10.1021/acs.joc.9b00140] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Wenqiang Jia
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Qiumu Xi
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Tianqi Liu
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Minjian Yang
- Department of Medicinal Chemistry, Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Yonghui Chen
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Dali Yin
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
- Department of Medicinal Chemistry, Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Xiaojian Wang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
- Department of Medicinal Chemistry, Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
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5
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Zumbrägel N, Machui P, Nonnhoff J, Gröger H. Enantioselective Biocatalytic Reduction of 2 H-1,4-Benzoxazines Using Imine Reductases. J Org Chem 2019; 84:1440-1447. [PMID: 30562025 DOI: 10.1021/acs.joc.8b02867] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A biocatalytic reduction of 2 H-1,4-benzoxazines using imine reductases is reported. This process enables a smooth and enantioselective synthesis of the resulting cyclic amines under mild conditions in aqueous media by means of a catalytic amount of the cofactor NADPH as hydride source as well as glucose as the reducing agent used in stoichiometric amounts for in situ cofactor recycling. Several substrates were studied, and the 3,4-dihydro-2 H-1,4-benzoxazines were obtained with up to 99% ee. In addition, the efficiency of this reduction process based on imine reductases as catalysts has been demonstrated for one 2 H-1,4-benzoxazine on an elevated laboratory scale running at a substrate loading of 10 g L-1 in the presence of a tailor-made whole-cell catalyst.
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Affiliation(s)
- Nadine Zumbrägel
- Chair of Organic Chemistry I, Faculty of Chemistry , Bielefeld University , Universitätsstraße 25 , 33615 Bielefeld , Germany
| | - Paul Machui
- Chair of Organic Chemistry I, Faculty of Chemistry , Bielefeld University , Universitätsstraße 25 , 33615 Bielefeld , Germany
| | - Jannis Nonnhoff
- Chair of Organic Chemistry I, Faculty of Chemistry , Bielefeld University , Universitätsstraße 25 , 33615 Bielefeld , Germany
| | - Harald Gröger
- Chair of Organic Chemistry I, Faculty of Chemistry , Bielefeld University , Universitätsstraße 25 , 33615 Bielefeld , Germany
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6
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Mal A, Wani IA, Goswami G, Ghorai MK. Synthesis of Nonracemic 1,4-Benzoxazines via Ring Opening/Cyclization of Activated Aziridines with 2-Halophenols: Formal Synthesis of Levofloxacin. J Org Chem 2018; 83:7907-7918. [PMID: 29863870 DOI: 10.1021/acs.joc.8b00788] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Novel 3,4-dihydro-1,4-benzoxazine derivatives have been synthesized by an efficient and simple method in excellent enantio- and diastereospecificity (ee > 99%, de > 99%). The reaction proceeds via Lewis acid-catalyzed SN2-type ring opening of activated aziridines with 2-halophenols followed by Cu(I)-catalyzed intramolecular C-N cyclization in a stepwise fashion under one-pot conditions to furnish the 3,4-dihydro-1,4-benzoxazine derivatives in excellent yields (up to 95%). The strategy offers a short and efficient synthesis to ( S)-3-methyl-1,4-benzoxazine ( S)-3v, a late stage intermediate in the synthesis of levofloxacin.
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Affiliation(s)
- Abhijit Mal
- Department of Chemistry , Indian Institute of Technology , Kanpur 208016 , India
| | - Imtiyaz Ahmad Wani
- Department of Chemistry , Indian Institute of Technology , Kanpur 208016 , India
| | - Gaurav Goswami
- Department of Chemistry , Indian Institute of Technology , Kanpur 208016 , India
| | - Manas K Ghorai
- Department of Chemistry , Indian Institute of Technology , Kanpur 208016 , India
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7
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Liu T, Jia W, Xi Q, Chen Y, Wang X, Yin D. Diversity-Oriented Synthesis of Heterocycles: Al(OTf)3-Promoted Cascade Cyclization and Ionic Hydrogenation. J Org Chem 2018; 83:1387-1393. [DOI: 10.1021/acs.joc.7b02894] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tianqi Liu
- State
Key Laboratory of Bioactive Substances and Functions of Natural Medicines,
Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, P.R. China
| | - Wenqiang Jia
- State
Key Laboratory of Bioactive Substances and Functions of Natural Medicines,
Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, P.R. China
| | - Qiumu Xi
- Department
of Medicinal Chemistry, Beijing Key Laboratory of Active Substances
Discovery and Drugability Evaluation, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, P.R. China
| | - Yonghui Chen
- State
Key Laboratory of Bioactive Substances and Functions of Natural Medicines,
Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, P.R. China
| | - Xiaojian Wang
- State
Key Laboratory of Bioactive Substances and Functions of Natural Medicines,
Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, P.R. China
- Department
of Medicinal Chemistry, Beijing Key Laboratory of Active Substances
Discovery and Drugability Evaluation, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, P.R. China
| | - Dali Yin
- State
Key Laboratory of Bioactive Substances and Functions of Natural Medicines,
Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, P.R. China
- Department
of Medicinal Chemistry, Beijing Key Laboratory of Active Substances
Discovery and Drugability Evaluation, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, P.R. China
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8
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Shiva Kumar K, Kumar NP, Rajesham B, Kishan G, Akula S, Kancha RK. Silver-catalyzed synthesis of pyrrolopiperazine fused with oxazine/imidazole via a domino approach: evaluation of anti-cancer activity. NEW J CHEM 2018. [DOI: 10.1039/c7nj03608f] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ag-Catalyzed synthesis of pyrrolopiperazine fused with oxazine/imidazole by the reaction of δ-alkynyl aldehydes and nucleophilic amines was performed. Several of these compounds were found to exhibit anti-cancer activity against cancer cell lines.
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Affiliation(s)
- K. Shiva Kumar
- Department of Chemistry
- Osmania University
- Hyderabad-500007
- India
| | | | | | | | - Sravani Akula
- Molecular Medicine and Therapeutics Laboratory
- CPMB
- Osmania University
- Hyderabad-500007
- India
| | - Rama Krishna Kancha
- Molecular Medicine and Therapeutics Laboratory
- CPMB
- Osmania University
- Hyderabad-500007
- India
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9
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Chen L, Chen B, Zhao F, Li Y, Li B, Zhang M. Task-specific acidic ionic liquid-catalyzed efficient synthesis of β-enaminolactones from alkynoates and β-amino alcohols. RSC Adv 2017. [DOI: 10.1039/c7ra04028h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
An efficient task-specific acidic ionic liquid-catalyzed straightforward synthesis of β-enaminolactones has been demonstrated.
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Affiliation(s)
- Lu Chen
- School of Chemical & Environmental Engineering
- Wuyi University
- Jiangmen
- China
| | - Bin Chen
- School of Chemical & Environmental Engineering
- Wuyi University
- Jiangmen
- China
| | - Fuying Zhao
- School of Chemical & Environmental Engineering
- Wuyi University
- Jiangmen
- China
| | - Yibiao Li
- School of Chemical & Environmental Engineering
- Wuyi University
- Jiangmen
- China
| | - Bin Li
- School of Chemical & Environmental Engineering
- Wuyi University
- Jiangmen
- China
| | - Min Zhang
- School of Chemical & Environmental Engineering
- Wuyi University
- Jiangmen
- China
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10
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Ghanbari M, Jadidi K, Mehrdad M, Assempour N. A simple route for the synthesis of novel 1,4-benzoxazine derivatives by Baeyer–Villiger oxidation reaction. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.05.086] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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11
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Ge J, Wang X, Liu T, Shi Z, Xiao Q, Yin D. Assembly of substituted phenanthridines via a cascade palladium-catalyzed coupling reaction, deprotection and intramolecular cyclization. RSC Adv 2016. [DOI: 10.1039/c6ra00249h] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
A practical method for one-pot synthesis of substituted phenanthridines is described. Via this method, a series of substituted phenanthridines are obtained in good yields with remarkable functional groups compatibility.
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Affiliation(s)
- Jun Ge
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines
- Institute of Materia Medica
- Peking Union Medical College
- Chinese Academy of Medical Sciences
- Beijing 100050
| | - Xiaojian Wang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines
- Institute of Materia Medica
- Peking Union Medical College
- Chinese Academy of Medical Sciences
- Beijing 100050
| | - Tianqi Liu
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines
- Institute of Materia Medica
- Peking Union Medical College
- Chinese Academy of Medical Sciences
- Beijing 100050
| | - Zeyu Shi
- Department of Medicinal Chemistry
- Beijing Key Laboratory of Active Substances
- Discovery and Drugability Evaluation
- Institute of Materia Medica
- Peking Union Medical College
| | - Qiong Xiao
- Department of Medicinal Chemistry
- Beijing Key Laboratory of Active Substances
- Discovery and Drugability Evaluation
- Institute of Materia Medica
- Peking Union Medical College
| | - Dali Yin
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines
- Institute of Materia Medica
- Peking Union Medical College
- Chinese Academy of Medical Sciences
- Beijing 100050
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12
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Liu T, Wang X, Yin D. Recent progress towards ionic hydrogenation: Lewis acid catalyzed hydrogenation using organosilanes as donors of hydride ions. RSC Adv 2015. [DOI: 10.1039/c5ra15172d] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Recent advances in ionic hydrogenation as well as its fundamental mechanism are summarized and discussed.
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Affiliation(s)
- Tianqi Liu
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines
- Institute of Materia Medica
- Peking Union Medical College
- Chinese Academy of Medical Sciences
- Beijing 100050
| | - Xiaojian Wang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines
- Institute of Materia Medica
- Peking Union Medical College
- Chinese Academy of Medical Sciences
- Beijing 100050
| | - Dali Yin
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines
- Institute of Materia Medica
- Peking Union Medical College
- Chinese Academy of Medical Sciences
- Beijing 100050
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13
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Ryan JH, Smith JA, Hyland C, Meyer AG, Williams CC, Bissember AC, Just J. Seven-Membered Rings. PROGRESS IN HETEROCYCLIC CHEMISTRY 2015. [DOI: 10.1016/b978-0-08-100024-3.00016-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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