1
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Teli B, Wani MM, Jan S, Bhat HR, Bhat BA. Micelle-mediated synthesis of quinoxaline, 1,4-benzoxazine and 1,4-benzothiazine scaffolds from styrenes. Org Biomol Chem 2024; 22:6593-6604. [PMID: 39086328 DOI: 10.1039/d4ob00928b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2024]
Abstract
A range of heterocycles based on quinoxalines, 1,4-benzoxazines and 1,4-benzothiazines have been accessed from styrenes by reacting them with benzene-1,2-diamine, 2-aminophenol and 2-aminothiophenol respectively in micellar medium. This reaction occurring in a less explored cetylpyridinium bromide (CPB) micellar medium operates in the presence of NBS through a tandem hydrobromination-oxidation cascade, converting styrenes to phenacyl bromides. Its subsequent nucleophilic addition with aromatic 1,2-dinucleophiles and further transformations led to the formation of heterocyclic constructs. The locus of the reaction site was confirmed through NMR studies and the types of interactions between the CPB and solubilizates were established by DFT calculations.
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Affiliation(s)
- Bisma Teli
- CSIR-Indian Institute of Integrative Medicine, Sanatnagar, Srinagar-190005, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Mohmad Muzafar Wani
- CSIR-Indian Institute of Integrative Medicine, Sanatnagar, Srinagar-190005, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Shafia Jan
- CSIR-Indian Institute of Integrative Medicine, Sanatnagar, Srinagar-190005, India.
| | - Haamid Rasool Bhat
- CSIR-Indian Institute of Integrative Medicine, Sanatnagar, Srinagar-190005, India.
| | - Bilal A Bhat
- CSIR-Indian Institute of Integrative Medicine, Sanatnagar, Srinagar-190005, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
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2
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Fotopoulou T, Papadopoulou A, Tzani A, Mamais M, Mavrogonatou E, Pratsinis H, Koufaki M, Kletsas D, Calogeropoulou T. Design and Synthesis of Novel Antioxidant 2-Substituted-5,7,8-Trimethyl-1,4-Benzoxazine Hybrids: Effects on Young and Senescent Fibroblasts. Antioxidants (Basel) 2024; 13:798. [PMID: 39061867 PMCID: PMC11274006 DOI: 10.3390/antiox13070798] [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: 05/29/2024] [Revised: 06/23/2024] [Accepted: 06/27/2024] [Indexed: 07/28/2024] Open
Abstract
The exponential growth of the aged population worldwide is followed by an increase in the prevalence of age-related disorders. Oxidative stress plays central role in damage accumulation during ageing and cell senescence. Thus, a major target of today's anti-ageing research has been focused on antioxidants counteracting senescence. In the current work, six novel 5,7,8-trimethyl-1,4-benzoxazine/catechol or resorcinol hybrids were synthesized connected through a methoxymethyl-1,2,3-triazolyl or a 1,2,3-triazoly linker. The compounds were evaluated for their antioxidant capacity in a cell-free system and for their ability to reduce intracellular ROS levels in human skin fibroblasts, both young (early-passage) and senescent. The most efficient compounds were further tested in these cells for their ability to induce the expression of the gene heme oxygenase-1 (ho-1), known to regulate redox homeostasis, and cellular glutathione (GSH) levels. Overall, the two catechol derivatives were found to be more potent than the resorcinol analogues. Furthermore, these two derivatives were shown to act coordinately as radical scavengers, ROS inhibitors, ho-1 gene expression inducers, and GSH enhancers. Interestingly, one of the two catechol derivatives was also found to enhance human skin fibroblast viability. The properties of the synthesized compounds support their potential use in cosmetic applications, especially in products targeting skin ageing.
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Affiliation(s)
- Theano Fotopoulou
- Institute of Chemical Biology, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece; (T.F.); (A.T.); (M.M.); (M.K.)
| | - Adamantia Papadopoulou
- Institute of Biosciences & Applications, NCSR “Demokritos”, T. Patriarchou Grigoriou & Neapoleos, 15310 Athens, Greece; (A.P.); (E.M.); (H.P.)
| | - Andromachi Tzani
- Institute of Chemical Biology, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece; (T.F.); (A.T.); (M.M.); (M.K.)
| | - Michail Mamais
- Institute of Chemical Biology, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece; (T.F.); (A.T.); (M.M.); (M.K.)
| | - Eleni Mavrogonatou
- Institute of Biosciences & Applications, NCSR “Demokritos”, T. Patriarchou Grigoriou & Neapoleos, 15310 Athens, Greece; (A.P.); (E.M.); (H.P.)
| | - Harris Pratsinis
- Institute of Biosciences & Applications, NCSR “Demokritos”, T. Patriarchou Grigoriou & Neapoleos, 15310 Athens, Greece; (A.P.); (E.M.); (H.P.)
| | - Maria Koufaki
- Institute of Chemical Biology, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece; (T.F.); (A.T.); (M.M.); (M.K.)
| | - Dimitris Kletsas
- Institute of Biosciences & Applications, NCSR “Demokritos”, T. Patriarchou Grigoriou & Neapoleos, 15310 Athens, Greece; (A.P.); (E.M.); (H.P.)
| | - Theodora Calogeropoulou
- Institute of Chemical Biology, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece; (T.F.); (A.T.); (M.M.); (M.K.)
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3
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Ellouz M, Ihammi A, Baraich A, Farihi A, Addichi D, Loughmari S, Sebbar NK, Bouhrim M, A. Mothana R, M. Noman O, Eto B, Chigr F, Chigr M. Synthesis and In Silico Analysis of New Polyheterocyclic Molecules Derived from [1,4]-Benzoxazin-3-one and Their Inhibitory Effect against Pancreatic α-Amylase and Intestinal α-Glucosidase. Molecules 2024; 29:3086. [PMID: 38999038 PMCID: PMC11243342 DOI: 10.3390/molecules29133086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Revised: 06/22/2024] [Accepted: 06/24/2024] [Indexed: 07/14/2024] Open
Abstract
This study focuses on synthesizing a new series of isoxazolinyl-1,2,3-triazolyl-[1,4]-benzoxazin-3-one derivatives 5a-5o. The synthesis method involves a double 1,3-dipolar cycloaddition reaction following a "click chemistry" approach, starting from the respective [1,4]-benzoxazin-3-ones. Additionally, the study aims to evaluate the antidiabetic potential of these newly synthesized compounds through in silico methods. This synthesis approach allows for the combination of three heterocyclic components: [1,4]-benzoxazin-3-one, 1,2,3-triazole, and isoxazoline, known for their diverse biological activities. The synthesis procedure involved a two-step process. Firstly, a 1,3-dipolar cycloaddition reaction was performed involving the propargylic moiety linked to the [1,4]-benzoxazin-3-one and the allylic azide. Secondly, a second cycloaddition reaction was conducted using the product from the first step, containing the allylic part and an oxime. The synthesized compounds were thoroughly characterized using spectroscopic methods, including 1H NMR, 13C NMR, DEPT-135, and IR. This molecular docking method revealed a promising antidiabetic potential of the synthesized compounds, particularly against two key diabetes-related enzymes: pancreatic α-amylase, with the two synthetic molecules 5a and 5o showing the highest affinity values of 9.2 and 9.1 kcal/mol, respectively, and intestinal α-glucosidase, with the two synthetic molecules 5n and 5e showing the highest affinity values of -9.9 and -9.6 kcal/mol, respectively. Indeed, the synthesized compounds have shown significant potential as antidiabetic agents, as indicated by molecular docking studies against the enzymes α-amylase and α-glucosidase. Additionally, ADME analyses have revealed that all the synthetic compounds examined in our study demonstrate high intestinal absorption, meet Lipinski's criteria, and fall within the required range for oral bioavailability, indicating their potential suitability for oral drug development.
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Affiliation(s)
- Mohamed Ellouz
- Laboratory of Molecular Chemistry, Materials and Catalysis (LCMMC), Faculty of Sciences and Technology, Sultan Moulay Slimane University, P.O. Box 523, Beni-Mellal 23000, Morocco; (D.A.); (S.L.); (M.C.)
| | - Aziz Ihammi
- Laboratory of Molecular Chemistry, Materials and Catalysis (LCMMC), Faculty of Sciences and Technology, Sultan Moulay Slimane University, P.O. Box 523, Beni-Mellal 23000, Morocco; (D.A.); (S.L.); (M.C.)
| | - Abdellah Baraich
- Laboratory of Bioresources, Biotechnology, Ethnopharmacology and Health, Faculty of Sciences, Mohammed First University, Boulevard Mohamed VI, P.O. Box 717, Oujda 60000, Morocco;
| | - Ayoub Farihi
- Laboratory of Biology and Health, Faculty of Sciences, Ibn Tofail University, Kenitra 14000, Morocco;
- Oriental Center for Water and Environmental Sciences and Technologies (COSTE), Mohammed Premier University, Oujda 60000, Morocco
| | - Darifa Addichi
- Laboratory of Molecular Chemistry, Materials and Catalysis (LCMMC), Faculty of Sciences and Technology, Sultan Moulay Slimane University, P.O. Box 523, Beni-Mellal 23000, Morocco; (D.A.); (S.L.); (M.C.)
| | - Saliha Loughmari
- Laboratory of Molecular Chemistry, Materials and Catalysis (LCMMC), Faculty of Sciences and Technology, Sultan Moulay Slimane University, P.O. Box 523, Beni-Mellal 23000, Morocco; (D.A.); (S.L.); (M.C.)
| | - Nada Kheira Sebbar
- Laboratory of Organic and Physical Chemistry, Applied Bioorganic Chemistry Team, Faculty of Sciences, Ibnou Zohr University, Agadir 80000, Morocco;
| | - Mohamed Bouhrim
- Biological Engineering Laboratory, Faculty of Sciences and Techniques, Sultan Moulay Slimane University, Beni Mellal 23000, Morocco; (M.B.); (F.C.)
- Laboratoires TBC, Laboratory of Pharmacology, Pharmacokinetics, and Clinical Pharmacy, Faculty of Pharmaceutical and Biological Sciences, P.O. Box 83, F-59000 Lille, France;
| | - Ramzi A. Mothana
- Department of Pharmacognosy, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia; (R.A.M.); (O.M.N.)
| | - Omar M. Noman
- Department of Pharmacognosy, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia; (R.A.M.); (O.M.N.)
| | - Bruno Eto
- Laboratoires TBC, Laboratory of Pharmacology, Pharmacokinetics, and Clinical Pharmacy, Faculty of Pharmaceutical and Biological Sciences, P.O. Box 83, F-59000 Lille, France;
| | - Fatiha Chigr
- Biological Engineering Laboratory, Faculty of Sciences and Techniques, Sultan Moulay Slimane University, Beni Mellal 23000, Morocco; (M.B.); (F.C.)
| | - Mohammed Chigr
- Laboratory of Molecular Chemistry, Materials and Catalysis (LCMMC), Faculty of Sciences and Technology, Sultan Moulay Slimane University, P.O. Box 523, Beni-Mellal 23000, Morocco; (D.A.); (S.L.); (M.C.)
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Chidambaranathan B, Sivaraj S, Vijayamathubalan P, Abraham Rajasekar S, Selvakumar S. [4-(2-Aminoethyl)morpholine-κ 2N, N']di-bromidocadmium(II): synthesis, crystal structure and Hirshfeld surface analysis. Acta Crystallogr E Crystallogr Commun 2024; 80:271-276. [PMID: 38456053 PMCID: PMC10915673 DOI: 10.1107/s2056989024000963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 01/27/2024] [Indexed: 03/09/2024]
Abstract
The title compound, [CdBr2(C6H14N2O)], was synthesized upon complexation of 4-(2-aminoethyl)morpholine and cadmium(II) bromide tetra-hydrate at 303 K. It crystallizes as a centrosymmetric dimer, with one cadmium atom, two bromine atoms and one N,N'-bidentate 4-(2-aminoethyl)morpholine ligand in the asymmetric unit. The metal atom is six-coordinated and has a distorted octa-hedral geometry. In the crystal, O⋯Cd inter-actions link the dimers into a polymeric double chain and inter-molecular C-H⋯O hydrogen bonds form R 2 2(6) ring motifs. Further C-H⋯Br and N-H⋯Br hydrogen bonds link the components into a three-dimensional network. As the N-H⋯Br hydrogen bonds are shorter than the C-H⋯Br inter-actions, they have a larger effect on the packing. A Hirshfeld surface analysis reveals that the largest contributions to the packing are from H⋯H (46.1%) and Br⋯H/H⋯Br (38.9%) inter-actions with smaller contributions from the O⋯H/H⋯O (4.7%), Br⋯Cd/Cd⋯Br (4.4%), O⋯Cd/Cd⋯O (3.5%), Br⋯Br (1.1%), Cd⋯H/H⋯Cd (0.9%), Br⋯O/O⋯Br (0.3%) and O⋯N/N⋯O (0.1%) contacts.
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Affiliation(s)
- B. Chidambaranathan
- PG and Research Department of Physics, Government Arts College for Men (Autonomous), Nandanam, Chennai 600 035, Tamil Nadu, India
| | - S. Sivaraj
- PG and Research Department of Physics, Government Arts College for Men (Autonomous), Nandanam, Chennai 600 035, Tamil Nadu, India
| | - P. Vijayamathubalan
- PG and Research Department of Physics, Government Arts College for Men (Autonomous), Nandanam, Chennai 600 035, Tamil Nadu, India
| | - S. Abraham Rajasekar
- Department of Physics, Sir Theagaraya College, Old Washermanpet, Chennai 600 021, Tamil Nadu, India
| | - S. Selvakumar
- PG and Research Department of Physics, Government Arts College for Men (Autonomous), Nandanam, Chennai 600 035, Tamil Nadu, India
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5
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Liu X, Sun Y, Hong S, Ji X, Gao W, Yuan H, Zhang Y, Lei B, Tang L, Fan Z. Synthesis of fungicidal morpholines and isochromenopyridinones via acid-catalyzed intramolecular reactions of isoindolinones. Org Biomol Chem 2023; 22:120-125. [PMID: 38050463 DOI: 10.1039/d3ob01717f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/06/2023]
Abstract
Acid-catalyzed intramolecular cyclization or rearrangement of isoindolinone derivatives is described. 3-Hydroxy/ethoxy-3,4-dihydro-6H-[1,4]-oxazino-[3,4-a]-isoindol-6-ones are obtained in moderate to good yields. Further acid-catalyzed intramolecular rearrangement reactions give 6H-isochromeno-[4,3-b]-pyridin-6-ones. The mild reaction conditions with convenient starting materials show broad substrate scope and provide the target compounds as novel pesticide leads with good fungicidal or systemical acquired resistance activities.
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Affiliation(s)
- Xiaoyu Liu
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Yaru Sun
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Shuang Hong
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Xia Ji
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Wei Gao
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Haolin Yuan
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Yue Zhang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Bin Lei
- Pesticide Production and Experiment Center, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
| | - Liangfu Tang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Zhijin Fan
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
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6
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Chatterjee I, Ali K, Panda G. A Synthetic Overview of Benzoxazines and Benzoxazepines as Anticancer Agents. ChemMedChem 2023; 18:e202200617. [PMID: 36598081 DOI: 10.1002/cmdc.202200617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/27/2022] [Accepted: 12/30/2022] [Indexed: 01/05/2023]
Abstract
Benzoxazines and benzoxazepines are nitrogen and oxygen-containing six and seven-membered benzo-fused heterocyclic scaffolds, respectively. Benzoxazepines and benzoxazines are well-known pharmacophores in pharmaceutical chemistry, which are of significant interest and have been extensively studied because of their promising activity against various diseases including their wide range of anticancer activity. Several reports are known for synthesizing benzoxazine and benzoxazepine-based compounds in the literature. Herein this review provides a critical analysis of synthetic strategies towards benzoxazines and benzoxazepines along with various ranges of anticancer activities based on these molecules that have been reported from 2010 onwards. This review also focuses on the structure-activity relationship of the benzoxazine and benzoxazepine scaffolds containing bioactive compounds and describes how the structural modification affects their anticancer activity.
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Affiliation(s)
- Indranil Chatterjee
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute Sector-10, Jankipuram Extension, Lucknow, 226031, India
| | - Kasim Ali
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute Sector-10, Jankipuram Extension, Lucknow, 226031, India.,AcSIR-Academy of Scientific & Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| | - Gautam Panda
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute Sector-10, Jankipuram Extension, Lucknow, 226031, India.,AcSIR-Academy of Scientific & Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
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Kumar S, Prince, Gupta M, Lalji RSK, Singh BK. Microwave assisted regioselective halogenation of benzo[ b][1,4]oxazin-2-ones via sp 2 C-H functionalization. RSC Adv 2023; 13:2365-2371. [PMID: 36741130 PMCID: PMC9841512 DOI: 10.1039/d2ra07259a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 12/28/2022] [Indexed: 01/18/2023] Open
Abstract
A microwave assisted, palladium-catalyzed regioselective halogenation of 3-phenyl-2H-benzo[b][1,4]oxazin-2-ones has been demonstrated using inexpensive and readily available N-halosuccinimide. The reaction utilizes the nitrogen atom present in the heterocyclic ring as the directing group to afford regioselective halogenated products in good to moderate yields. The established protocol provides wide substrate scope, high functional group tolerance, and high atom and step economy. The reaction proved to be cost-effective and time-saving as it required only a few minutes for completion and is amenable to gram scale. The halogen atoms present in synthesized products provide further scope for post-functionalization. Several post-functionalized products have also been synthesised to demonstrate the high utility of the reaction in the field of drug discovery and late-stage functionalization.
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Affiliation(s)
- Sandeep Kumar
- Bio-Organic Research Laboratory, Department of Chemistry, University of DelhiDelhi110007India
| | - Prince
- Bio-Organic Research Laboratory, Department of Chemistry, University of DelhiDelhi110007India
| | - Mohit Gupta
- Bio-Organic Research Laboratory, Department of Chemistry, University of DelhiDelhi110007India
| | - Ram Sunil Kumar Lalji
- Bio-Organic Research Laboratory, Department of Chemistry, University of DelhiDelhi110007India,Department of Chemistry, Kirori-mal College, Delhi UniversityDelhi110007India
| | - Brajendra K. Singh
- Bio-Organic Research Laboratory, Department of Chemistry, University of DelhiDelhi110007India
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Shaikh MA, Samal PP, Ubale AS, Krishnamurty S, Gnanaprakasam B. Lewis Acid-Catalyzed Chemodivergent and Regiospecific Reaction of Phenols with Quaternary Peroxyoxindoles. J Org Chem 2022; 87:14155-14167. [PMID: 36269888 DOI: 10.1021/acs.joc.2c01701] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The indium-catalyzed regiospecific coupling of substituted phenol derivatives and quaternary peroxyoxindoles for the synthesis of C2 or C4 benzoxazin-3-one-substituted phenols via skeletal rearrangement is described. This reaction is demonstrated with 17 examples with good yields and diverse aryl substituents. In contrast to the indium-catalyzed reaction, the Cu(OTf)2-catalyzed reaction of the phenol with quaternary peroxyoxindoles afforded C2 or C4 2-oxindole-substituted phenol derivatives. This diverse catalytic reaction generated various biologically important phenol-substituted 2-oxindole derivatives directly without any skeleton rearrangement and was demonstrated with 19 examples in high yield. The regiospecificity and the reaction pathways were explained with the support of density functional theory (DFT).
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Affiliation(s)
- Moseen A Shaikh
- Department of Chemistry, Indian Institute of Science Education and Research, Pune, Maharashtra 411008, India
| | - Pragnya Paramita Samal
- CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, Maharashtra 411008, India
| | - Akash S Ubale
- Department of Chemistry, Indian Institute of Science Education and Research, Pune, Maharashtra 411008, India
| | - Sailaja Krishnamurty
- CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, Maharashtra 411008, India
| | - Boopathy Gnanaprakasam
- Department of Chemistry, Indian Institute of Science Education and Research, Pune, Maharashtra 411008, India
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Bhat MF, Luján AP, Saifuddin M, Poelarends GJ. Chemoenzymatic Asymmetric Synthesis of Complex Heterocycles: Dihydrobenzoxazinones and Dihydroquinoxalinones. ACS Catal 2022; 12:11421-11427. [PMID: 36158903 PMCID: PMC9486952 DOI: 10.1021/acscatal.2c03008] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 08/25/2022] [Indexed: 01/08/2023]
Affiliation(s)
- Mohammad Faizan Bhat
- Department of Chemical and Pharmaceutical Biology, Groningen Research Institute of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Alejandro Prats Luján
- Department of Chemical and Pharmaceutical Biology, Groningen Research Institute of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Mohammad Saifuddin
- Department of Chemical and Pharmaceutical Biology, Groningen Research Institute of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Gerrit J. Poelarends
- Department of Chemical and Pharmaceutical Biology, Groningen Research Institute of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
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10
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Qi H, Zhao Y, Li W, Chen S. Synthesis of 1,4-benzoxazines via Y(OTf) 3-catalyzed ring opening/annulation cascade reaction of benzoxazoles with propargylic alcohols. Chem Commun (Camb) 2022; 58:9120-9123. [PMID: 35880715 DOI: 10.1039/d2cc03080b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A convenient Y(OTf)3-catalyzed cascade formal [4 + 2] cyclization approach for the formation of 1,4-benzoxazine scaffolds from benzoxazoles and propargyl alcohols through a ring-opening and regioselective ring-closure process has been developed. By using this mild and practical protocol, a broad range of aldehyde-containing 1,4-benzoxazine compounds were prepared in moderate to excellent yields with good functional group tolerance. Mechanistic studies indicated that an SN1 nucleophilic substitution of benzoxazole with a propargyl cation was involved in this transformation.
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Affiliation(s)
- Hongbo Qi
- Inner Mongolia Key Laboratory of Fine Organic Synthesis, Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, China.
| | - Yupeng Zhao
- Inner Mongolia Key Laboratory of Fine Organic Synthesis, Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, China.
| | - Wencong Li
- Inner Mongolia Key Laboratory of Fine Organic Synthesis, Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, China.
| | - Shufeng Chen
- Inner Mongolia Key Laboratory of Fine Organic Synthesis, Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, China.
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11
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Kang X, Qian C, Yang H, Shi J, Claverie J, Tang W. Protecting-group-free enantioselective tandem allylic substitution of o-phenylenediamines and o-aminophenols. GREEN SYNTHESIS AND CATALYSIS 2022. [DOI: 10.1016/j.gresc.2022.01.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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12
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Ye C, Gao F, Wei H, Chen J, Yang G, Yuan Q, Zhang W. Pd(II)-Catalyzed Enantioselective Ring-Contraction for the Construction of 1,4-Benzoxazines. J Org Chem 2021; 86:16573-16581. [PMID: 34726916 DOI: 10.1021/acs.joc.1c01874] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Enantioselective ring-contraction reactions have not been widely reported. We have developed an enantioselective ring contraction of 5,6-dihydro-2H-benzo[b][1,4]oxazocines, affording enantiomerically enriched 3,4-dihydro-2H-1,4-benzoxazine derivatives as single regioisomers. An acidic additive is necessary in order to obtain the products with good yields and enantiomeric ratios (up to 93% yield, 98:2 er). The reaction was successfully performed on a gram scale, and the products can be derivatized easily.
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Affiliation(s)
- Chenghao Ye
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Feng Gao
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Haipeng Wei
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Jianzhong Chen
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Guoqiang Yang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Qianjia Yuan
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Wanbin Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China.,College of Chemistry, Zhengzhou University, 75 Daxue Road, Zhengzhou 450052, P. R. China
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13
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Maegawa T, Nakamura A, Yamamoto K, Murakami R, Kawashita N, Matsumoto K. One-Pot Synthetic Approaches for the Construction of Isochroman-4-ones and Benzoxazin-3-ones Using O,P-Acetals. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1523-1597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
AbstractA method for synthesizing six-membered heterocyclic compounds was developed based on the features of O,P-acetals. Sequential reactions of intramolecular cyclization between the methylene carbon atom of O,P-acetal and its electrophilic functional group (ester or protected carbamate) was followed by Horner–Wadsworth–Emmons (HWE) olefination with various aldehydes. The developed one-pot method yielded isochroman-4-one and benzoxazin-3-one derivatives with an alkylidene moiety.
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Affiliation(s)
| | | | | | - Ryo Murakami
- School of Pharmaceutical Sciences, Kindai University
| | - Norihito Kawashita
- Department of Life Science, School of Science and Engineering, Kindai University
| | - Kouichi Matsumoto
- Department of Chemistry, School of Science and Engineering, Kindai University
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14
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Nie Y, Li J, Yan J, Yuan Q, Zhang W. Synthesis of Chiral 2-Substituted 1,4-Benzoxazin-3-ones via Iridium-Catalyzed Enantioselective Hydrogenation of Benzoxazinones. Org Lett 2021; 23:5373-5377. [PMID: 34213913 DOI: 10.1021/acs.orglett.1c01701] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
An efficient iridium-catalyzed enantioselective hydrogenation of 2-alkylidene 1,4-benzoxazin-3-ones using our developed iPr-BiphPHOX as a ligand is reported. This method showed good functional group compatibility and delivered the corresponding reduced products in excellent yields (up to 99%) with excellent enantioselectivities (up to 99% ee). The reaction proceeded very well on a gram scale with low catalyst loadings (0.1 mol %), providing the product with no erosion in enantioselectivity. Additionally, three bioactive molecules can be easily obtained from the reduced products.
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Affiliation(s)
- Yu Nie
- Shanghai Key Laboratory of Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Jing Li
- Shanghai Key Laboratory of Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Jun Yan
- Shanghai Key Laboratory of Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Qianjia Yuan
- Shanghai Key Laboratory of Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Wanbin Zhang
- Shanghai Key Laboratory of Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China.,College of Chemistry, Zhengzhou University, 75 Daxue Road, Zhengzhou 450052, P. R. China
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15
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Teli B, Waseem MA, Rashid S, Ganaie BA, Bhat BA. Catalyst free synthesis of
2‐Aryl‐2
H
‐benzo[
b
][1,4]oxazines and
3‐Aryl‐2H
‐benzo[
b
][1,4]thiazin‐2‐ones: An ultrasonication‐assisted strategy. J Heterocycl Chem 2021. [DOI: 10.1002/jhet.4267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Bisma Teli
- Natural Products and Medicinal Chemistry CSIR‐Indian Institute of Integrative Medicine Jammu & Kashmir India
- Academy of Scientific & Innovative Research (AcSIR) Ghaziabad India
| | - Malik Abdul Waseem
- Natural Products and Medicinal Chemistry CSIR‐Indian Institute of Integrative Medicine Jammu & Kashmir India
| | - Showkat Rashid
- Natural Products and Medicinal Chemistry CSIR‐Indian Institute of Integrative Medicine Jammu & Kashmir India
| | - Bilal Ahmad Ganaie
- Natural Products and Medicinal Chemistry CSIR‐Indian Institute of Integrative Medicine Jammu & Kashmir India
| | - Bilal A. Bhat
- Natural Products and Medicinal Chemistry CSIR‐Indian Institute of Integrative Medicine Jammu & Kashmir India
- Academy of Scientific & Innovative Research (AcSIR) Ghaziabad India
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16
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Pham HN, Arrault A, Vanthuyne N, Acherar S. Multigram-scale HPLC enantioseparation as a rescue pathway for circumventing racemization problem during enantioselective synthesis of ethyl 3,4-dihydro-2H-1,4-benzoxazine-2-carboxylate. Chirality 2021; 33:324-336. [PMID: 33908096 DOI: 10.1002/chir.23313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 03/23/2021] [Accepted: 04/12/2021] [Indexed: 11/05/2022]
Abstract
Racemic ethyl 3,4-dihydro-2H-1,4-benzoxazine-2-carboxylate is a key synthon for the design of promising therapeutic drugs. It is mainly synthesized from racemic ethyl 2,3-dibromopropionate and 2-aminophenol in presence of K2 CO3 in refluxed acetone. Unfortunately, synthesis of (R)- and (S)-enantiomers using the enantioselective version of this reaction, which should normally be performed with a double SN 2 mechanism, is unsuitable due to a racemization process involving the dehydrobromination of enantiopure ethyl 2,3-dibromopropionate into ethyl 2-bromoacrylate. For the first time, the enantioselective version is studied (ee ≈ 55-66%), and the percentage of racemization process has estimated to around 34-46% after determination of the optimal experimental conditions for analytical HPLC enantioseparation of racemate. The influence of the experimental and purification conditions on the racemization rate is also studied. The results indicate that racemization occurs faster at the beginning of the reaction but the initiation of the double SN 2 process takes place more faster to limit the racemization rate. The study of the influence of experimental conditions (reaction times, temperature, solvent or type of base, etc.) on the degree of racemization of the (R)- enantiomer is performed and shows that despite changes in the experimental conditions, the synthesis of the (R)- enantiomer is always accompanied by a racemization rate which is difficult in reducing. In parallel, (R)- and (S)-enantiomers are obtained in high enantiopurity (ee > 99.5%) by preparative HPLC enantioseparation of racemate on multigram scale and characterized by optical rotation measurements, ECD and UV spectra.
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Affiliation(s)
- Hong-Ngoc Pham
- LCPM, CNRS, Université de Lorraine, F-54000 Nancy, France.,Vietnam Academy of Science and Technology, University of Science and Technology of Hanoi (USTH), Hanoi, Vietnam
| | - Axelle Arrault
- LCPM, CNRS, Université de Lorraine, F-54000 Nancy, France
| | - Nicolas Vanthuyne
- Centrale Marseille, iSm2, Aix Marseille Université CNRS, Marseille, France
| | - Samir Acherar
- LCPM, CNRS, Université de Lorraine, F-54000 Nancy, France
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17
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Vinogradov MG, Turova OV, Zlotin SG. Catalytic Asymmetric Aza‐Diels‐Alder Reaction: Pivotal Milestones and Recent Applications to Synthesis of Nitrogen‐Containing Heterocycles. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001307] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Maxim G. Vinogradov
- N.D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences 47 Leninsky prosp. 119991 Moscow Russian Federation
| | - Olga V. Turova
- N.D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences 47 Leninsky prosp. 119991 Moscow Russian Federation
| | - Sergei G. Zlotin
- N.D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences 47 Leninsky prosp. 119991 Moscow Russian Federation
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18
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Abstract
![]()
Developing
drugs for the central nervous system (CNS) requires
fine chemical modifications, as a strict balance between size and
lipophilicity is necessary to improve the permeability through the
blood-brain barrier (BBB).
In this context, morpholine and its analogues represent valuable heterocycles,
due to their conformational and physicochemical properties. In fact,
the presence of a weak basic nitrogen atom and of an oxygen atom at
the opposite position provides a peculiar pKa value and a flexible conformation to the ring, thus allowing
it to take part in several lipophilic–hydrophilic interactions,
and to improve blood solubility and brain permeability of the overall
structure. In CNS-active compounds, morpholines are used (1) to enhance
the potency through molecular interactions, (2) to act as a scaffold
directing the appendages in the correct position, and (3) to modulate
pharmacokinetic/pharmacodynamic (PK/PD) properties. In this perspective,
selected morpholine-containing CNS drug candidates are discussed to
reveal the active pharmacophores accountable for the (1) modulation
of receptors involved in mood disorders and pain, (2) bioactivity
toward enzymes and receptors responsible for neurodegenerative diseases,
and (3) inhibition of enzymes involved in the pathology of CNS tumors.
The medicinal chemistry/pharmacological activity of morpholine derivatives
is discussed, in the effort to highlight the importance of morpholine
ring interactions in the active site of different targets, particularly
reporting binding features retrieved from PDB data, when available.
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Affiliation(s)
- Elena Lenci
- Department of Chemistry “Ugo Schiff”, University of Florence, via della Lastruccia 13, 50019 Sesto Fiorentino, Florence, Italy
| | - Lorenzo Calugi
- Department of Chemistry “Ugo Schiff”, University of Florence, via della Lastruccia 13, 50019 Sesto Fiorentino, Florence, Italy
| | - Andrea Trabocchi
- Department of Chemistry “Ugo Schiff”, University of Florence, via della Lastruccia 13, 50019 Sesto Fiorentino, Florence, Italy
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19
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Rostoll-Berenguer J, Capella-Argente M, Blay G, Pedro JR, Vila C. Visible-light-accelerated amination of quinoxalin-2-ones and benzo[1,4]oxazin-2-ones with dialkyl azodicarboxylates under metal and photocatalyst-free conditions. Org Biomol Chem 2021; 19:6250-6255. [PMID: 34231626 DOI: 10.1039/d1ob01157j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A direct sp3 C-H amination of cyclic amines (dihydroquinoxalinones and dihydrobenzoxazinones) with dialkyl azo dicarboxylates accelerated by visible-light irradiation under metal and photocatalyst-free conditions is described. This protocol features very mild reaction conditions for the synthesis of aminal quinoxaline and benzoxazine derivatives with good to high yields (up to 99%). These aminal derivatives respresent versatile building blocks for the divergent synthesis of quinoxalin-2-one derivatives.
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Affiliation(s)
- Jaume Rostoll-Berenguer
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain.
| | - Murta Capella-Argente
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain.
| | - Gonzalo Blay
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain.
| | - José R Pedro
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain.
| | - Carlos Vila
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain.
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20
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Kim SY, Han GH, Hong SK, Park J, Park YS. Divergent Reactions of
2‐Aminophenol
with
α‐Bromoacetate
: Asymmetric Synthesis of Two Regioisomeric 1,
4‐Benzoxazinones. B KOREAN CHEM SOC 2020. [DOI: 10.1002/bkcs.12165] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Seo Yun Kim
- Department of Chemistry Konkuk University, 120 Neungdong‐ro, Gwangjin‐gu Seoul 05029 Korea
| | - Gun Hee Han
- Department of Chemistry Konkuk University, 120 Neungdong‐ro, Gwangjin‐gu Seoul 05029 Korea
| | - Su Kyung Hong
- Department of Chemistry Konkuk University, 120 Neungdong‐ro, Gwangjin‐gu Seoul 05029 Korea
| | - Jieun Park
- Department of Chemistry Konkuk University, 120 Neungdong‐ro, Gwangjin‐gu Seoul 05029 Korea
| | - Yong Sun Park
- Department of Chemistry Konkuk University, 120 Neungdong‐ro, Gwangjin‐gu Seoul 05029 Korea
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21
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Wang D, Liu Y, Zhu W, Shen H, Liu H, Fu L. Efficient Synthesis of Substituted Morpholine Derivatives via an Indium(III)-catalyzed Reductive Etherification Reaction. CHEM LETT 2020. [DOI: 10.1246/cl.200142] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Di Wang
- School of Pharmacy, Shanghai Jiao Tong University, No. 800 Dongchuan Rd., Shanghai 200240, P. R. China
- Roche Pharmaceutical Research & Early Development, Department of Medicinal Chemistry, Roche Innovation Center Shanghai, 720 Cailun Road, Building 5, Pudong, Shanghai 201203, P. R. China
| | - Yafei Liu
- Roche Pharmaceutical Research & Early Development, Department of Medicinal Chemistry, Roche Innovation Center Shanghai, 720 Cailun Road, Building 5, Pudong, Shanghai 201203, P. R. China
| | - Wei Zhu
- Roche Pharmaceutical Research & Early Development, Department of Medicinal Chemistry, Roche Innovation Center Shanghai, 720 Cailun Road, Building 5, Pudong, Shanghai 201203, P. R. China
| | - Hong Shen
- Roche Pharmaceutical Research & Early Development, Department of Medicinal Chemistry, Roche Innovation Center Shanghai, 720 Cailun Road, Building 5, Pudong, Shanghai 201203, P. R. China
| | - Haixia Liu
- Roche Pharmaceutical Research & Early Development, Department of Medicinal Chemistry, Roche Innovation Center Shanghai, 720 Cailun Road, Building 5, Pudong, Shanghai 201203, P. R. China
| | - Lei Fu
- School of Pharmacy, Shanghai Jiao Tong University, No. 800 Dongchuan Rd., Shanghai 200240, P. R. China
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22
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Qian C, Tang W. A Versatile Synthesis of Vinyl-Substituted Heterocycles via Regio- and Enantioselective Pd-Catalyzed Tandem Allylic Substitution. Org Lett 2020; 22:4483-4488. [DOI: 10.1021/acs.orglett.0c01490] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Chao Qian
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
| | - Wenjun Tang
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
- School of Chemistry and Material Science, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou 310024, China
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23
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Baruah S, Aier M, Puzari A. (S)‐4‐(4‐aminobenzyl)‐2‐oxazolidinone based 2‐azetidinones for antimicrobial application and luminescent sensing of divalent metal cations. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.3965] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Shyamal Baruah
- Department of ChemistryNational Institute of Technology Nagaland Dimapur‐797103 Nagaland India
| | - Merangmenla Aier
- Department of ChemistryNational Institute of Technology Nagaland Dimapur‐797103 Nagaland India
| | - Amrit Puzari
- Department of ChemistryNational Institute of Technology Nagaland Dimapur‐797103 Nagaland India
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24
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Pan HJ, Hu X. Biomimetic Hydrogenation Catalyzed by a Manganese Model of [Fe]-Hydrogenase. Angew Chem Int Ed Engl 2020; 59:4942-4946. [PMID: 31820844 DOI: 10.1002/anie.201914377] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Indexed: 12/16/2022]
Abstract
[Fe]-hydrogenase is an efficient biological hydrogenation catalyst. Despite intense research, Fe complexes mimicking the active site of [Fe]-hydrogenase have not achieved turnovers in hydrogenation reactions. Herein, we describe the design and development of a manganese(I) mimic of [Fe]-hydrogenase. This complex exhibits the highest activity and broadest scope in catalytic hydrogenation among known mimics. Thanks to its biomimetic nature, the complex exhibits unique activity in the hydrogenation of compounds analogous to methenyl-H4 MPT+ , the natural substrate of [Fe]-hydrogenase. This activity enables asymmetric relay hydrogenation of benzoxazinones and benzoxazines, involving the hydrogenation of a chiral hydride transfer agent using our catalyst coupled to Lewis acid-catalyzed hydride transfer from this agent to the substrates.
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Affiliation(s)
- Hui-Jie Pan
- Laboratory of Inorganic Synthesis and Catalysis, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), ISIC-LSCI, BCH 3305, Lausanne, 1015, Switzerland
| | - Xile Hu
- Laboratory of Inorganic Synthesis and Catalysis, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), ISIC-LSCI, BCH 3305, Lausanne, 1015, Switzerland
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25
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Tzara A, Xanthopoulos D, Kourounakis AP. Morpholine As a Scaffold in Medicinal Chemistry: An Update on Synthetic Strategies. ChemMedChem 2020; 15:392-403. [PMID: 32017384 DOI: 10.1002/cmdc.201900682] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 01/21/2020] [Indexed: 12/14/2022]
Abstract
Morpholine is a frequently used heterocycle in medicinal chemistry and a privileged structural component of bioactive molecules. This is mainly due to its contribution to a plethora of biological activities as well as to an improved pharmacokinetic profile of such bioactive molecules. The synthesis of morpholines is a subject of much study due to their biological and pharmacological importance, with the last such review being published in 2013. Here, an overview of the main approaches toward morpholine synthesis or functionalization is presented, emphasizing on novel work which has not been reviewed so far. This review is an update on synthetic strategies leading to easily accessible libraries of bioactives which are of interest for drug discovery projects.
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Affiliation(s)
- Ariadni Tzara
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, 15771, Athens, Greece
| | - Dimitrios Xanthopoulos
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, 15771, Athens, Greece
| | - Angeliki P Kourounakis
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, 15771, Athens, Greece
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26
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Pan H, Hu X. Biomimetic Hydrogenation Catalyzed by a Manganese Model of [Fe]‐Hydrogenase. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201914377] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Hui‐Jie Pan
- Laboratory of Inorganic Synthesis and CatalysisInstitute of Chemical Sciences and EngineeringÉcole Polytechnique Fédérale de Lausanne (EPFL), ISIC-LSCI BCH 3305 Lausanne 1015 Switzerland
| | - Xile Hu
- Laboratory of Inorganic Synthesis and CatalysisInstitute of Chemical Sciences and EngineeringÉcole Polytechnique Fédérale de Lausanne (EPFL), ISIC-LSCI BCH 3305 Lausanne 1015 Switzerland
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27
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Das J, Borah BJ, Das SK. Base-mediated intramolecular one-pot double-cyclization of epoxide-tethered 2-fluorobenzenesulfonamides: an avenue to 1,4-benzoxazine-fused benzothiaoxazepine-1,1-dioxides. Org Biomol Chem 2020; 18:220-224. [PMID: 31829386 DOI: 10.1039/c9ob02377a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Herein, we describe the synthesis of hitherto unknown 1,4-benzoxazine-fused benzothiaoxazepine-1,1-dioxides by a NaH-promoted intramolecular one-pot double-cyclization of epoxide-tethered 2-fluorobenzene sulfonamides. Mechanistically, the reactions proceed via an intramolecular epoxide ring-opening followed by an intramolecular nucleophilic aromatic substitution. The high yields, mild conditions, complete regio- and diastereoselectivity, and a wide substrate scope render this protocol well suited for drug discovery efforts.
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Affiliation(s)
- Jonali Das
- Department of Chemical Sciences, Tezpur University, Napaam, Tezpur, Assam, India-784028.
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28
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Debnath S, Das T, Gayen S, Ghosh T, Maiti DK. Iodine-Catalyzed Functionalization of Primary Aliphatic Amines to Oxazoles, 1,4-Oxazines, and Oxazinones. ACS OMEGA 2019; 4:20410-20422. [PMID: 31815245 PMCID: PMC6894181 DOI: 10.1021/acsomega.9b03501] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 11/01/2019] [Indexed: 05/10/2023]
Abstract
Unprecedented I2-catalyzed α,α-C(sp3)-H, decarboxylative α-C(sp3)-H, lactonized α-C(sp3)-H, and α,β-C(sp3)-H functionalized 5- and 6-annulation as well as α-C(sp3)-H activated 6-lactonization of primary aliphatic amines are devised under aerobic conditions. The metal-free sustainable strategy was employed for the diverse construction of valuable five-and six-membered polycyclic N,O-heteroaromatics such as oxazoles, 1,4-oxazines, and oxazin-2-one with a rapid reaction rate and high yield. The viability of this mild nonmetallic catalysis is successfully verified through syntheses of labile chiral heterocyclic analogues. In contrast to the common practice, this method is not limited to use of prefunctionalized amines, directing groups (DGs) and/or transient DGs, metal catalysts, and traditional oxidants. The possible mechanistic pathway of the annulation reaction is investigated by control experiments and ESI-MS data collected for a reaction mixture of the ongoing reaction. The synthesized new compounds are potent organic nanobuilding blocks to achieve valuable organic nanomaterials of different sizes, shapes, and dimensions, which are under investigation for the discovery of high-tech devices of innovative organic nanoelectronics and photophysical properties.
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Affiliation(s)
- Sudipto Debnath
- Department
of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata 700009, India
| | - Tuluma Das
- Department
of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata 700009, India
| | - Subrata Gayen
- Department
of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata 700009, India
| | - Tapas Ghosh
- Department
of Applied Sciences, Maulana Abul Kalam
Azad University of Technology, Haringhata 741249, West Bengal, India
| | - Dilip K. Maiti
- Department
of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata 700009, India
- E-mail:
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29
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Aubineau T, Cossy J. Metal-Catalyzed Cyclization: Synthesis of (Benzo)morpholines and (Benzo)[1,4]dihydrooxazines. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900927] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Thomas Aubineau
- Molecular, Macromolecular Chemistry and Materials, ESPCI Paris, CNRS; PSL University; 10 rue Vauquelin 75005 Paris France
| | - Janine Cossy
- Molecular, Macromolecular Chemistry and Materials, ESPCI Paris, CNRS; PSL University; 10 rue Vauquelin 75005 Paris France
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30
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Kourounakis AP, Xanthopoulos D, Tzara A. Morpholine as a privileged structure: A review on the medicinal chemistry and pharmacological activity of morpholine containing bioactive molecules. Med Res Rev 2019; 40:709-752. [PMID: 31512284 DOI: 10.1002/med.21634] [Citation(s) in RCA: 111] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 07/22/2019] [Accepted: 08/21/2019] [Indexed: 12/15/2022]
Abstract
Morpholine is a heterocycle featured in numerous approved and experimental drugs as well as bioactive molecules. It is often employed in the field of medicinal chemistry for its advantageous physicochemical, biological, and metabolic properties, as well as its facile synthetic routes. The morpholine ring is a versatile and readily accessible synthetic building block, it is easily introduced as an amine reagent or can be built according to a variety of available synthetic methodologies. This versatile scaffold, appropriately substituted, possesses a wide range of biological activities. There are many examples of molecular targets of morpholine bioactive in which the significant contribution of the morpholine moiety has been demonstrated; it is an integral component of the pharmacophore for certain enzyme active-site inhibitors whereas it bestows selective affinity for a wide range of receptors. A large body of in vivo studies has demonstrated morpholine's potential to not only increase potency but also provide compounds with desirable drug-like properties and improved pharamacokinetics. In this review we describe the medicinal chemistry/pharmacological activity of morpholine derivatives on various therapeutically related molecular targets, attempting to highlight the importance of the morpholine ring in drug design and development as well as to justify its classification as a privileged structure.
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Affiliation(s)
- Angeliki P Kourounakis
- Department of Medicinal Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece
| | - Dimitrios Xanthopoulos
- Department of Medicinal Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece
| | - Ariadni Tzara
- Department of Medicinal Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece
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31
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Lee A, Zhu JL, Feoktistova T, Brueckner AC, Cheong PH, Scheidt KA. Carbene‐Catalyzed Enantioselective Decarboxylative Annulations to Access Dihydrobenzoxazinones and Quinolones. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201900600] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ansoo Lee
- Department of ChemistryCenter for Molecular Innovation and Drug DiscoveryNorthwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Joshua L. Zhu
- Department of ChemistryCenter for Molecular Innovation and Drug DiscoveryNorthwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Taisiia Feoktistova
- Department of ChemistryOregon State University 153 Gilbert Hall Corvallis OR 97331 USA
| | | | - Paul H.‐Y. Cheong
- Department of ChemistryOregon State University 153 Gilbert Hall Corvallis OR 97331 USA
| | - Karl A. Scheidt
- Department of ChemistryCenter for Molecular Innovation and Drug DiscoveryNorthwestern University 2145 Sheridan Road Evanston IL 60208 USA
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32
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Lee A, Zhu JL, Feoktistova T, Brueckner AC, Cheong PHY, Scheidt KA. Carbene-Catalyzed Enantioselective Decarboxylative Annulations to Access Dihydrobenzoxazinones and Quinolones. Angew Chem Int Ed Engl 2019; 58:5941-5945. [PMID: 30843323 DOI: 10.1002/anie.201900600] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 02/15/2019] [Indexed: 12/16/2022]
Abstract
A direct decarboxylative strategy for the generation of aza-o-quinone methides (aza-o-QMs) by N-heterocyclic carbene (NHC) catalysis has been discovered and explored. This process requires no stoichiometric additives in contrast with current approaches. Aza-o-QMs react with trifluoromethyl ketones through a formal [4+2] manifold to access highly enantioenriched dihydrobenzoxazin-4-one products, which can be converted to dihydroquinolones through an interesting stereoretentive aza-Petasis-Ferrier rearrangement sequence. Complementary dispersion-corrected density functional theory (DFT) studies provided an accurate prediction of the reaction enantioselectivity and lend further insight to the origins of stereocontrol. Additionally, a computed potential energy surface around the major transition structure suggests a concerted asynchronous mechanism for the formal annulation.
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Affiliation(s)
- Ansoo Lee
- Department of Chemistry, Center for Molecular Innovation and Drug Discovery, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Joshua L Zhu
- Department of Chemistry, Center for Molecular Innovation and Drug Discovery, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Taisiia Feoktistova
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, OR, 97331, USA
| | - Alexander C Brueckner
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, OR, 97331, USA
| | - Paul H-Y Cheong
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, OR, 97331, USA
| | - Karl A Scheidt
- Department of Chemistry, Center for Molecular Innovation and Drug Discovery, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
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33
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Han Z, Liu G, Wang R, Dong XQ, Zhang X. Highly efficient Ir-catalyzed asymmetric hydrogenation of benzoxazinones and derivatives with a Brønsted acid cocatalyst. Chem Sci 2019; 10:4328-4333. [PMID: 31057759 PMCID: PMC6471538 DOI: 10.1039/c8sc05797d] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Accepted: 03/03/2019] [Indexed: 12/18/2022] Open
Abstract
The Ir-catalyzed highly efficient asymmetric hydrogenation of benzoxazinones and derivatives was successfully developed with N-methylated ZhaoPhos L5 as the ligand, affording various chiral dihydrobenzoxazinones and derivatives with excellent results.
The Ir-catalyzed highly efficient asymmetric hydrogenation of benzoxazinones and derivatives was successfully developed with N-methylated ZhaoPhos L5 as the ligand, which may display a new activation mode with a single anion-binding interaction among the substrate, cocatalyst Brønsted acid and ligand. This synthetic approach afforded a series of chiral dihydrobenzoxazinones and derivatives with excellent results (>99% conversion, 88–96% yields, 91–>99% ee, up to 40 500 TON). A key to success is the utilization of a strong Brønsted acid as the cocatalyst, such as hydrochloric acid, to form a possible single anion-binding interaction with the substrate and catalyst, which greatly contributed to the improvement of reactivity and enantioselectivity. Importantly, a creative and efficient synthetic route was developed to construct the important intermediate for the potential IgE/IgG receptor modulator through our catalytic methodology system.
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Affiliation(s)
- Zhengyu Han
- Key Laboratory of Biomedical Polymers , Engineering Research Center of Organosilicon Compounds & Materials , Ministry of Education , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , P. R. China .
| | - Gang Liu
- Key Laboratory of Biomedical Polymers , Engineering Research Center of Organosilicon Compounds & Materials , Ministry of Education , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , P. R. China .
| | - Rui Wang
- Key Laboratory of Biomedical Polymers , Engineering Research Center of Organosilicon Compounds & Materials , Ministry of Education , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , P. R. China .
| | - Xiu-Qin Dong
- Key Laboratory of Biomedical Polymers , Engineering Research Center of Organosilicon Compounds & Materials , Ministry of Education , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , P. R. China .
| | - Xumu Zhang
- Key Laboratory of Biomedical Polymers , Engineering Research Center of Organosilicon Compounds & Materials , Ministry of Education , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , P. R. China . .,Department of Chemistry , Shenzhen Grubbs Institute , Southern University of Science and Technology , Shenzhen , Guangdong 518055 , P. R. China .
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34
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Chen Z, Yin X, Dong XQ, Zhang X. Efficient access to chiral dihydrobenzoxazinones via Rh-catalyzed hydrogenation. RSC Adv 2019; 9:15466-15469. [PMID: 35514854 PMCID: PMC9064260 DOI: 10.1039/c9ra02694k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 05/03/2019] [Indexed: 12/19/2022] Open
Abstract
Rh/(S)-DTBM-SegPhos-catalyzed asymmetric hydrogenation of prochiral (Z)-2-(2-oxo-2H-benzo[b][1,4]oxazin-3(4H)-ylidene)acetate esters was successfully developed. A series of chiral dihydrobenzoxazinones were prepared through this efficient methodology with good to excellent results (up to >99% conversion, 93% yield and >99% ee), which are important motifs in the biologically active molecules. Rh/(S)-DTBM-SegPhos-catalyzed asymmetric hydrogenation of prochiral (Z)-2-(2-oxo-2H-benzo[b][1,4]oxazin-3(4H)-ylidene)acetate esters was successfully developed to prepare various chiral dihydrobenzoxazinones with good to excellent results.![]()
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Affiliation(s)
- Ziyi Chen
- Key Laboratory of Biomedical Polymers
- Engineering Research Centre of Organosilicon Compounds & Materials
- Ministry of Education
- College of Chemistry and Molecular Sciences
- Wuhan University
| | - Xuguang Yin
- Key Laboratory of Biomedical Polymers
- Engineering Research Centre of Organosilicon Compounds & Materials
- Ministry of Education
- College of Chemistry and Molecular Sciences
- Wuhan University
| | - Xiu-Qin Dong
- Key Laboratory of Biomedical Polymers
- Engineering Research Centre of Organosilicon Compounds & Materials
- Ministry of Education
- College of Chemistry and Molecular Sciences
- Wuhan University
| | - Xumu Zhang
- Key Laboratory of Biomedical Polymers
- Engineering Research Centre of Organosilicon Compounds & Materials
- Ministry of Education
- College of Chemistry and Molecular Sciences
- Wuhan University
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35
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9,10-Phenanthrenedione as Visible-Light Photoredox Catalyst: A Green Methodology for the Functionalization of 3,4-Dihydro-1,4-Benzoxazin-2-Ones through a Friedel-Crafts Reaction. Catalysts 2018. [DOI: 10.3390/catal8120653] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
A visible-light photoredox functionalization of 3,4-dihydro-1,4-benzoxazin-2-ones through a Friedel-Crafts reaction with indoles using an inexpensive organophotoredox catalyst is described. The reaction uses a dual catalytic system that is formed by a photocatalyst simple and cheap, 9,10-phenanthrenedione, and a Lewis acid, Zn(OTf)2. 5W white LEDs are used as visible-light source and oxygen from air as a terminal oxidant, obtaining the corresponding products with good yields. The reaction can be extended to other electron-rich arenes. Our methodology represents one of the most valuable and sustainable approach for the functionalization of 3,4-dihydro-1,4-benzoxazin-2-ones, as compared to the reported procedures. Furthermore, several transformations were carried out, such as the synthesis of the natural product cephalandole A and a tryptophol derivative.
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36
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Viji M, Sim J, Li S, Lee H, Oh K, Jung JK. Organocatalytic and Regiodivergent Mannich Reaction of Ketones with Benzoxazinones. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800870] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Mayavan Viji
- College of Pharmacy and Medicinal Research Center (MRC); Chungbuk National University; Cheongju 28160 Republic of Korea
| | - Jaeuk Sim
- College of Pharmacy and Medicinal Research Center (MRC); Chungbuk National University; Cheongju 28160 Republic of Korea
| | - Siyuan Li
- College of Pharmacy and Medicinal Research Center (MRC); Chungbuk National University; Cheongju 28160 Republic of Korea
| | - Heesoon Lee
- College of Pharmacy and Medicinal Research Center (MRC); Chungbuk National University; Cheongju 28160 Republic of Korea
| | - Kyungsoo Oh
- Center for Metareceptome Research; College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjak; Seoul 06974 Republic of Korea
| | - Jae-Kyung Jung
- College of Pharmacy and Medicinal Research Center (MRC); Chungbuk National University; Cheongju 28160 Republic of Korea
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37
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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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38
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Liu Y, Chen X. Concise synthesis of 3,4-dihydro-1,4-benzoxazines by three-component reactions of acyl chlorides, o-aminophenols and 1,2-dichloroethane. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.05.037] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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39
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Pawliczek M, Shimazaki Y, Kimura H, Oberg KM, Zakpur S, Hashimoto T, Maruoka K. Phase-transfer-catalysed asymmetric synthesis of 2,2-disubstituted 1,4-benzoxazin-3-ones. Chem Commun (Camb) 2018; 54:7078-7080. [PMID: 29877552 DOI: 10.1039/c8cc03635g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
1,4-Benzoxazin-3-one is a scaffold which is found in a variety of biologically active molecules. Because of its unique structure and drug-like activities, 1,4-benzoxazin-3-ones have been widely used in drug discovery. However, just a few methods have been developed to access these molecules by catalytic asymmetric synthesis. We report herein the phase-transfer-catalysed asymmetric alkylation of 2-aryl-1,4-benzoxazin-3-ones as a new way for the highly enantioselective synthesis of 2,2-disubstituted 1,4-benzoxazin-3-ones.
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Affiliation(s)
- Martin Pawliczek
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto, 606-8502, Japan.
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40
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Méndez-Rojas C, Quiroz G, Faúndez M, Gallardo-Garrido C, Pessoa-Mahana CD, Chung H, Gallardo-Toledo E, Saitz-Barría C, Araya-Maturana R, Kogan MJ, Zúñiga-López MC, Iturriaga-Vásquez P, Valenzuela-Gutiérrez C, Pessoa-Mahana H. Synthesis and biological evaluation of potential acetylcholinesterase inhibitors based on a benzoxazine core. Arch Pharm (Weinheim) 2018; 351:e1800024. [DOI: 10.1002/ardp.201800024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 03/08/2018] [Accepted: 03/13/2018] [Indexed: 12/13/2022]
Affiliation(s)
- Claudio Méndez-Rojas
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas; Universidad de Chile; Santiago Chile
| | - Gabriel Quiroz
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas; Universidad de Chile; Santiago Chile
| | - Mario Faúndez
- Departamento de Farmacia, Facultad de Química; Pontificia Universidad Católica de Chile; Santiago Chile
| | - Carlos Gallardo-Garrido
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas; Universidad de Chile; Santiago Chile
| | - C. David Pessoa-Mahana
- Departamento de Farmacia, Facultad de Química; Pontificia Universidad Católica de Chile; Santiago Chile
| | - Hery Chung
- Departamento de Farmacia, Facultad de Química; Pontificia Universidad Católica de Chile; Santiago Chile
| | - Eduardo Gallardo-Toledo
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas; Universidad de Chile; Santiago Chile
| | - Claudio Saitz-Barría
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas; Universidad de Chile; Santiago Chile
| | | | - Marcelo J. Kogan
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas; Universidad de Chile; Santiago Chile
| | - María C. Zúñiga-López
- Departamento de Química Inorgánica y Analítica, Facultad de Ciencias Químicas y Farmacéuticas; Universidad de Chile; Santiago Chile
| | - Patricio Iturriaga-Vásquez
- Departamento de Ciencias Químicas y Recursos Naturales, Facultad de Ingeniería Ciencias; Universidad de la Frontera; Temuco Chile
| | - Carla Valenzuela-Gutiérrez
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas; Universidad de Chile; Santiago Chile
| | - Hernán Pessoa-Mahana
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas; Universidad de Chile; Santiago Chile
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41
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Shen HC, Wu YF, Zhang Y, Fan LF, Han ZY, Gong LZ. Palladium-Catalyzed Asymmetric Aminohydroxylation of 1,3-Dienes. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201712350] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Hong-Cheng Shen
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Chemistry; University of Science and Technology of China; Hefei 230026 China
| | - Yu-Feng Wu
- School of Chemistry and Chemical Engineering; Harbin Institute of Technology; Harbin 150001 China
| | - Ying Zhang
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Chemistry; University of Science and Technology of China; Hefei 230026 China
| | - Lian-Feng Fan
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Chemistry; University of Science and Technology of China; Hefei 230026 China
| | - Zhi-Yong Han
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Chemistry; University of Science and Technology of China; Hefei 230026 China
| | - Liu-Zhu Gong
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Chemistry; University of Science and Technology of China; Hefei 230026 China
- Collaborative Innovation Center of Chemical Science and Engineering; Tianjin China
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42
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Shen HC, Wu YF, Zhang Y, Fan LF, Han ZY, Gong LZ. Palladium-Catalyzed Asymmetric Aminohydroxylation of 1,3-Dienes. Angew Chem Int Ed Engl 2018; 57:2372-2376. [DOI: 10.1002/anie.201712350] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Indexed: 01/15/2023]
Affiliation(s)
- Hong-Cheng Shen
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Chemistry; University of Science and Technology of China; Hefei 230026 China
| | - Yu-Feng Wu
- School of Chemistry and Chemical Engineering; Harbin Institute of Technology; Harbin 150001 China
| | - Ying Zhang
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Chemistry; University of Science and Technology of China; Hefei 230026 China
| | - Lian-Feng Fan
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Chemistry; University of Science and Technology of China; Hefei 230026 China
| | - Zhi-Yong Han
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Chemistry; University of Science and Technology of China; Hefei 230026 China
| | - Liu-Zhu Gong
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Chemistry; University of Science and Technology of China; Hefei 230026 China
- Collaborative Innovation Center of Chemical Science and Engineering; Tianjin China
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43
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Singh K, Malviya BK, Roy TK, Mithu VS, Bhardwaj VK, Verma VP, Chimni SS, Sharma S. Catalyst-Controlled Structural Divergence: Selective Intramolecular 7-endo-dig and 6-exo-dig Post-Ugi Cyclization for the Synthesis of Benzoxazepinones and Benzoxazinones. J Org Chem 2017; 83:57-68. [DOI: 10.1021/acs.joc.7b02123] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Karandeep Singh
- Department
of Chemistry, Mohanlal Sukhadia University, Udaipur 313001, India
- Department
of Chemistry, U.G.C. Centre of Advance Studies in Chemistry, Guru Nanak Dev University, Amritsar 143005, India
| | | | - Tapta Kanchan Roy
- Department
of Chemistry and Chemical Sciences, Central University of Jammu, Jammu 180011, India
| | - Venus Singh Mithu
- Department
of Chemistry, U.G.C. Centre of Advance Studies in Chemistry, Guru Nanak Dev University, Amritsar 143005, India
| | - Vimal K. Bhardwaj
- Department
of Chemistry, Indian Institute of Technology Ropar (IIT Ropar), Rupnagar 140001, India
| | - Ved Prakash Verma
- Department
of Chemistry, Banasthali University, Newai-Jodhpuriya Road, Vanasthali 304022, India
| | - Swapandeep Singh Chimni
- Department
of Chemistry, U.G.C. Centre of Advance Studies in Chemistry, Guru Nanak Dev University, Amritsar 143005, India
| | - Siddharth Sharma
- Department
of Chemistry, Mohanlal Sukhadia University, Udaipur 313001, India
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44
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Chemoselective synthesis and cytotoxic activity of a series of novel benzo[1,4]oxazin-3-one derivatives. CHINESE CHEM LETT 2017. [DOI: 10.1016/j.cclet.2016.12.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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45
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“On water” ultrasound-assisted one pot efficient synthesis of functionalized 2-oxo-benzo[1,4]oxazines: First application to the synthesis of anticancer indole alkaloid, Cephalandole A. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.03.048] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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46
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Patel K, Deshmukh SS, Bodkhe D, Mane M, Vanka K, Shinde D, Rajamohanan PR, Nandi S, Vaidhyanathan R, Chikkali SH. Secondary Interactions Arrest the Hemiaminal Intermediate To Invert the Modus Operandi of Schiff Base Reaction: A Route to Benzoxazinones. J Org Chem 2017; 82:4342-4351. [DOI: 10.1021/acs.joc.7b00352] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ketan Patel
- Polyolefin
Lab, Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - Satej S. Deshmukh
- Polyolefin
Lab, Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - Dnyaneshwar Bodkhe
- Polyolefin
Lab, Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - Manoj Mane
- Physical
and Materials Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - Kumar Vanka
- Physical
and Materials Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - Dinesh Shinde
- Central
NMR Facility, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | | | - Shyamapada Nandi
- Department
of Chemistry, Indian Institute of Science, Education and Research, Dr. Homi Bhabha Road, Pune 411008, India
| | - Ramanathan Vaidhyanathan
- Department
of Chemistry, Indian Institute of Science, Education and Research, Dr. Homi Bhabha Road, Pune 411008, India
| | - Samir H. Chikkali
- Polyolefin
Lab, Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Anusandhan Bhawan, 2 Rafi Marg, New Delhi 110001, India
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47
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Pandit RP, Shim JJ, Kim SH, Lee YR. Copper-catalyzed direct coupling of benzoxazin-2-ones with indoles for the synthesis of diverse 3-indolylbenzoxazin-2-ones: access to natural cephalandole A. RSC Adv 2017. [DOI: 10.1039/c7ra10634c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Diverse and functionalized 3-indolyl benzo[b][1,4]oxazin-2-ones were synthesized via copper-catalyzed direct coupling of benzo[b][1,4]oxazin-2-one and indoles in air.
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Affiliation(s)
| | - Jae-Jin Shim
- School of Chemical Engineering
- Yeungnam University
- Gyeongsan
- Republic of Korea
| | - Sung Hong Kim
- Analysis Research Division
- Daegu Center
- Korea Basic Science Institute
- Daegu 41566
- Republic of Korea
| | - Yong Rok Lee
- School of Chemical Engineering
- Yeungnam University
- Gyeongsan
- Republic of Korea
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48
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Synthesis and Pharmacological Activities of Pyrano[2,3-d]pyrimidine and Pyrano[2,3-d]pyrimidine-5-one Derivatives as New Fused Heterocyclic Systems. J CHEM-NY 2017. [DOI: 10.1155/2017/5373049] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Various fused oxazine such as 4-(4-methoxyphenyl)-3,7-dimethyl-1,4-dihydro-5H-pyrazolo [4′,3′:5,6]pyrano[2,3-d][1,3]oxazin-5-one2has been prepared and utilized as a starting material for novel pyrazolopyranopyrimidinones3,5,6, and7a–cand pyrazolopyranopyrimidines4,9,10, and11which are expected to possess considerable chemical and pharmacological activities. The structures of the new compounds have been elucidated by spectroscopic data and elemental analysis. The antioxidant and anticancer activities of synthesized products have been evaluated.
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49
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Ko YO, Jeon HJ, Jung DJ, Kim UB, Lee SG. Rh(II)/Mg(OtBu)2-Catalyzed Tandem One-Pot Synthesis of 1,4-Oxazepines and 1,4-Oxazines from N-Sulfonyl-1,2,3-triazoles and Glycidols. Org Lett 2016; 18:6432-6435. [DOI: 10.1021/acs.orglett.6b03328] [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)
- Young Ok Ko
- Department of Chemistry and
Nano Science (BK Plus), Ewha Womans University, Seoul 120-750, Korea
| | - Hyun Ji Jeon
- Department of Chemistry and
Nano Science (BK Plus), Ewha Womans University, Seoul 120-750, Korea
| | - Da Jung Jung
- Department of Chemistry and
Nano Science (BK Plus), Ewha Womans University, Seoul 120-750, Korea
| | - U Bin Kim
- Department of Chemistry and
Nano Science (BK Plus), Ewha Womans University, Seoul 120-750, Korea
| | - Sang-gi Lee
- Department of Chemistry and
Nano Science (BK Plus), Ewha Womans University, Seoul 120-750, Korea
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50
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Lin AJS, Russell CC, Baker JR, Frailey SL, Sakoff JA, McCluskey A. A facile hybrid 'flow and batch' access to substituted 3,4-dihydro-2H-benzo[b][1,4]oxazinones. Org Biomol Chem 2016; 14:8732-8742. [PMID: 27714138 DOI: 10.1039/c6ob01153e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We describe a simple flow chemistry approach to libraries of ethyl 3-oxo-2-(substituted-phenylamino)-3,4-dihydro-2H-benzo[b][1,4]oxazine-6-carboxylates (12a-l) and N-ethyl-3-oxo-2-(substituted-phenylamino)-3,4-dihydro-2H-benzo[b][1,4]oxazine-6-carboxamides (13a-l) in 38-87% yields. This scaffold is poorly described in the chemical literature. Screening against a panel of 11 cancer and one normal cell line showed that the amide linked library 13a-l was devoid of toxicity. Whereas the ester linked analogues 12b, 12c, 12g, 12j and 12l were highly cytotoxic with growth inhibition (GI50) values from 0.34 to >50 μM across all cell lines, with the 2-OH-Ph substituted 12l analogue presenting with sub-micromolar potency against the A2780 (ovarian; 0.34 ± 0.04 μM), BEC-2 (glioblastoma; 0.35 ± 0.06 μM), MIA (pancreas; 0.91 ± 0.054 μM) and SMA (murine glioblastoma; 0.77 ± 0.029 μM) carcinoma cell lines. Interestingly, the U87 glioblastoma cell line showed inherent resistance to growth inhibition by all analogues (GI50 32 to >50 μM) while the A2780 cells were highly sensitive (GI50 3.8-0.34 μM), suggesting that the analogues developed herein may be valuable lead compounds for the development of ovarian carcinoma specific cytotoxic agents. The differences in amide versus ester cytotoxicity was consitent with esterase cleaveage to release the cytotoxic warhead.
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Affiliation(s)
- Andrew J S Lin
- Chemistry, Centre for Chemical Biology, School of Environmental & Life Sciences, University of Newcastle, University Drive, Callaghan, NSW 2308, Australia.
| | - Cecilia C Russell
- Chemistry, Centre for Chemical Biology, School of Environmental & Life Sciences, University of Newcastle, University Drive, Callaghan, NSW 2308, Australia.
| | - Jennifer R Baker
- Chemistry, Centre for Chemical Biology, School of Environmental & Life Sciences, University of Newcastle, University Drive, Callaghan, NSW 2308, Australia.
| | - Shelby L Frailey
- Chemistry, Centre for Chemical Biology, School of Environmental & Life Sciences, University of Newcastle, University Drive, Callaghan, NSW 2308, Australia. and Chemical Engineering, Trine University, Angola, IN, 46703 USA
| | - Jennette A Sakoff
- Department of Medical Oncology, Calvary Mater Newcastle Hospital, Waratah, NSW 2298, Australia
| | - Adam McCluskey
- Chemistry, Centre for Chemical Biology, School of Environmental & Life Sciences, University of Newcastle, University Drive, Callaghan, NSW 2308, Australia.
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