1
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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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2
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Yang Z, Bao Y, Huang J, Han Z, Sun J, Huang H. Tandem Allylic Amination/oxa-Michael Addition of Vinyl Methylene Cyclic Carbonates via Palladium-Organo Relay Catalysis. Org Lett 2023. [PMID: 37486245 DOI: 10.1021/acs.orglett.3c02014] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2023]
Abstract
A tandem allylic amination/oxa-Michael addition of vinyl methylene cyclic carbonates (VMCCs) has been developed to construct heterocycles by single palladium catalysis or palladium-organo relay catalysis. In this process, the bisnucleophiles first underwent regioselective allylic amination, and then the second nucleophilic group further completed the hetero-Michael addition reaction to form a series of heterocycles. Among them, the chiral 3,4-dihydro-2H-benzo[b][1,4]oxazines could be produced in medium to high yield with good enantioselectivity under a palladium-organo relay catalysis.
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Affiliation(s)
- Zhenkun Yang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Yu Bao
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Jiaxin Huang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Zhengyu Han
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Jianwei Sun
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR 999077, China
| | - Hai Huang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
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3
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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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4
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Kumar A, Nimsarkar P, Singh S. Systems pharmacology aiding benzimidazole scaffold as potential lead compounds against leishmaniasis for functional therapeutics. Life Sci 2022; 308:120960. [PMID: 36116527 DOI: 10.1016/j.lfs.2022.120960] [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: 06/22/2022] [Revised: 09/06/2022] [Accepted: 09/10/2022] [Indexed: 10/31/2022]
Abstract
Systems pharmacology helps to understand the complex relationships between biological systems, drugs, and infection model; Leishmania major being one of them. It has aided the drug discovery process by addressing the concerns about economic stress, drug toxicity, and the emergence of resistance. Two million new leishmaniasis cases are reported annually, and >350 million people are at risk globally due to the parasite Leishmania. Trypanothione reductase (TryR) from the parasite-specific redox metabolism is a promising target. In the discipline of medicinal chemistry, benzimidazole is a strong pharmacophore and exhibits a broad range of biological activities. In the current study, benzimidazole derivatives were explored using computational, enzyme kinetics, biological activity, cytotoxic impact characterization, and in-silico ADME-Tox predictions, followed by their confirmation through in-vitro and animal experiments to discover novel inhibitors for TryR from Leishmania major. During rigorous in-silico screening, two benzimidazole derivatives were chosen for further experimentation. In-vitro testing revealed that compound C1 has a higher binding affinity for the TryR protein. Treatment with compound C1 caused significant morphological changes in the parasite, including size reduction, membrane blebbing, loss of motility, and improved anti-leishmanial efficacy. The compound C1 had significant anti-leishmanial potential against L. major promastigotes and demonstrated apoptosis-mediated leishmanicidal activity (apoptosis-like cell death). Furthermore, BALB/c female mice treated with C1 reduced parasite burden. Our findings depicts that C1 successfully lowered the parasite load and has a therapeutic impact on infected mice making C1 as a promising lead compound that, with additional modifications, may be exploited to create novel anti-leishmanial therapies.
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Affiliation(s)
- Anurag Kumar
- National Centre for Cell Science, NCCS Complex, SP Pune University Campus, Ganeshkhind, Pune 411007, India
| | - Prajakta Nimsarkar
- National Centre for Cell Science, NCCS Complex, SP Pune University Campus, Ganeshkhind, Pune 411007, India
| | - Shailza Singh
- National Centre for Cell Science, NCCS Complex, SP Pune University Campus, Ganeshkhind, Pune 411007, India.
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5
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Srinivasulu A, Vani D, Kumar GS, Shantharjun B, Chahal K, Sridhar B, Reddy KR. Copper‐Catalyzed
N
‐Alkyl Formamide Activation: Tandem Oxidative Coupling Approach for the Construction of C−N and C−O Bonds to Synthesize 3‐Alkyl‐1,3‐Benzoxazine‐2,4‐Dione and 4‐Methylene‐3‐Alkyl‐1,3‐Benzoxazine‐2‐One Derivatives. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- A. Srinivasulu
- Catalysis and Fine Chemicals Division CSIR-Indian Institute of Chemical Technology, Tarnaka Hyderabad Telangana 500007 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002, U.P. India
| | - D. Vani
- Catalysis and Fine Chemicals Division CSIR-Indian Institute of Chemical Technology, Tarnaka Hyderabad Telangana 500007 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002, U.P. India
| | - G. Sathish Kumar
- Catalysis and Fine Chemicals Division CSIR-Indian Institute of Chemical Technology, Tarnaka Hyderabad Telangana 500007 India
| | - B. Shantharjun
- Catalysis and Fine Chemicals Division CSIR-Indian Institute of Chemical Technology, Tarnaka Hyderabad Telangana 500007 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002, U.P. India
| | - Kapil Chahal
- Catalysis and Fine Chemicals Division CSIR-Indian Institute of Chemical Technology, Tarnaka Hyderabad Telangana 500007 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002, U.P. India
| | - Balasubramanian Sridhar
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002, U.P. India
- Center for X-ray Crystallography Department of Analytical & Structural chemistry CSIR-Indian Institute of Chemical Technology, Tarnaka Hyderabad Telangana 500007 India
| | - K. Rajender Reddy
- Catalysis and Fine Chemicals Division CSIR-Indian Institute of Chemical Technology, Tarnaka Hyderabad Telangana 500007 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002, U.P. India
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6
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Bano K, Kisan DA, Panda TK. Facile Synthesis of Benzimidazole and Benzothiazole Compounds Mediated by Zinc Precatalyst Supported by Iminopyrrole‐Morpholine Ligand. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kulsum Bano
- IITH: Indian Institute of Technology Hyderabad Chemistry KandiSangareddy 502285 INDIA
| | - Devadkar Ajitrao Kisan
- IITH: Indian Institute of Technology Hyderabad Chemistry KandiSangareddy 502285 Hyderabad INDIA
| | - Tarun K. Panda
- IITH: Indian Institute of Technology Hyderabad Chemistry KandiSangareddy 502285 Hyderabad INDIA
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7
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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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8
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Sun D, Zhang H, Gao J, Guan X, Qin X, Jiang G, Zhang G, Zheng L, Zhang S. Asymmetric Synthesis of Spiro[3,2'-morpholine-oxindoles] Derivatives via the [5 + 1] Annulation Reaction. J Org Chem 2021; 86:16815-16823. [PMID: 34761939 DOI: 10.1021/acs.joc.1c02037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficacious method in which BINOL-type chiral imidodiphosphoric acid catalyzed the asymmetric [5 + 1] annulation reaction of 2-pyrrolylphenol with 1-methylindoline-2,3-dione was established. The strategy tolerated a broad substrate scope, and 30 examples were obtained. A range of enantioenriched spiro[3,2'-morpholine-oxindole] derivatives which incorporate a tertiary stereocenter, with moderate to excellent yields (up to 96%) and enantioselectivities (up to 99%) under mild conditions, was delivered.
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9
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Giofrè S, Keller M, Lo Presti L, Beccalli EM, Molteni L. Switchable Oxidative Reactions of N-allyl-2-Aminophenols: Palladium-Catalyzed Alkoxyacyloxylation vs an Intramolecular Diels-Alder Reaction. Org Lett 2021; 23:7698-7702. [PMID: 34570517 PMCID: PMC8524420 DOI: 10.1021/acs.orglett.1c02539] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
The Pd(II)-catalyzed
reaction of N-allyl-2-aminophenols
in the presence of PhI(OCOR)2 as the oxidant resulted in
an alkoxyacyloxylation process, with the formation of functionalized
dihydro-1,4-benzoxazines. The reaction performed in the absence of
palladium catalyst switched to an intramolecular Diels–Alder
reaction (IMDA) pathway, which was the result of an oxidative dearomatization
of the 2-aminophenol, nucleophilic addition, and Diels–Alder
reaction cascade, highlighting the role of the oxidant as both a nucleophilic
donor and an oxidizing agent.
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Affiliation(s)
- Sabrina Giofrè
- DISFARM, Sezione di Chimica Generale e Organica "A. Marchesini", Università degli Studi di Milano, Via Venezian 21, 20133 Milano, Italy
| | - Manfred Keller
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstrasse 21, 79104 Freiburg im Breisgau, Germany
| | - Leonardo Lo Presti
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy
| | - Egle M Beccalli
- DISFARM, Sezione di Chimica Generale e Organica "A. Marchesini", Università degli Studi di Milano, Via Venezian 21, 20133 Milano, Italy
| | - Letizia Molteni
- DISFARM, Sezione di Chimica Generale e Organica "A. Marchesini", Università degli Studi di Milano, Via Venezian 21, 20133 Milano, Italy
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10
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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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11
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Spinck M, Bischoff M, Lampe P, Meyer-Almes FJ, Sievers S, Neumann H. Discovery of Dihydro-1,4-Benzoxazine Carboxamides as Potent and Highly Selective Inhibitors of Sirtuin-1. J Med Chem 2021; 64:5838-5849. [PMID: 33876629 DOI: 10.1021/acs.jmedchem.1c00017] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Sirtuins are signaling hubs orchestrating the cellular response to various stressors with roles in all major civilization diseases. Sirtuins remove acyl groups from lysine residues of proteins, thereby controlling their activity, turnover, and localization. The seven human sirtuins, SirT1-7, are closely related in structure, hindering the development of specific inhibitors. Screening 170,000 compounds, we identify and optimize SirT1-specific benzoxazine inhibitors, Sosbo, which rival the efficiency and surpass the selectivity of selisistat (EX527). The compounds inhibit the deacetylation of p53 in cultured cells, demonstrating their ability to permeate biological membranes. Kinetic analysis of inhibition and docking studies reveal that the inhibitors bind to a complex of SirT1 and nicotinamide adenine dinucleotide, similar to selisistat. These new SirT1 inhibitors are valuable alternatives to selisistat in biochemical and cell biological studies. Their greater selectivity may allow the development of better targeted drugs to combat SirT1 activity in diseases such as cancer, Huntington's chorea, or anorexia.
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Affiliation(s)
- Martin Spinck
- Department of Structural Biochemistry, Max Planck Institute of Molecular Physiology, Otto-Hahn-Strasse 11, Dortmund 44227, Germany
| | - Matthias Bischoff
- Compound Management and Screening Center, Dortmund, Otto-Hahn-Str. 11, Dortmund 44227, Germany
| | - Philipp Lampe
- Compound Management and Screening Center, Dortmund, Otto-Hahn-Str. 11, Dortmund 44227, Germany
| | - Franz-Josef Meyer-Almes
- Department of Chemical Engineering and Biotechnology, University of Applied Sciences Darmstadt, Stephanstrasse 7, Darmstadt 64295, Germany
| | - Sonja Sievers
- Compound Management and Screening Center, Dortmund, Otto-Hahn-Str. 11, Dortmund 44227, Germany
| | - Heinz Neumann
- Department of Structural Biochemistry, Max Planck Institute of Molecular Physiology, Otto-Hahn-Strasse 11, Dortmund 44227, Germany.,Department of Chemical Engineering and Biotechnology, University of Applied Sciences Darmstadt, Stephanstrasse 7, Darmstadt 64295, Germany
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12
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Dong K, Jin XL, Chen S, Wu LZ, Liu Q. Controllable synthesis of 2- and 3-aryl-benzomorpholines from 2-aminophenols and 4-vinylphenols. Chem Commun (Camb) 2020; 56:7941-7944. [PMID: 32531007 DOI: 10.1039/d0cc02662j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present herein a method for the controllable synthesis of 3-aryl-benzomorpholine and 2-aryl-benzomorpholine cycloadducts via cross-coupling/annulation between electron-rich 2-aminophenols and 4-vinylphenols. Molecular oxygen was successfully used in the reaction as the terminal oxidant and the complete inversion of chemoselectivity was achieved by the adjustment of the solvents and bases at room temperature.
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Affiliation(s)
- Kui Dong
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, 222 South Tianshui Road, Lanzhou 730000, P. R. China.
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13
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Pham H, Arrault A, Vanthuyne N, Acherar S. Enantiopure ethyl 2,3‐dibromopropionate: Enantioselective synthesis
vs
preparative HPLC enantioseparation of racemate on multigram scale. Chirality 2020; 32:1045-1052. [DOI: 10.1002/chir.23260] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 06/04/2020] [Accepted: 06/05/2020] [Indexed: 11/10/2022]
Affiliation(s)
- Hong‐Ngoc Pham
- Université de Lorraine, CNRSLCPM Nancy F‐54000 France
- Vietnam Academy of Science and TechnologyUniversity of Science and Technology of Hanoi (USTH) Hanoi Vietnam
| | | | | | - Samir Acherar
- Université de Lorraine, CNRSLCPM Nancy F‐54000 France
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14
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Tuo X, Chen S, Jiang P, Ni P, Wang X, Deng GJ. Iodine-catalyzed convergent aerobic dehydro-aromatization toward benzazoles and benzazines. RSC Adv 2020; 10:8348-8351. [PMID: 35497844 PMCID: PMC9049994 DOI: 10.1039/c9ra10964a] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Accepted: 02/15/2020] [Indexed: 02/02/2023] Open
Abstract
An iodine-catalyzed aerobic dehydro-aromatization has been developed, providing straightforward and efficient access to various benzoazoles and benzoazines. The present transition-metal-free protocol enables the dehydro-aromatization of tetrahydrobenzazoles and tetrahydroquinolines with molecular oxygen as the green oxidant, along with some other N-heterocycles. Hence, a broad range of heteroaromatic compounds are generated in moderate to good yields under facile reaction conditions. An iodine-catalyzed aerobic dehydro-aromatization has been developed, providing a straightforward and efficient access to various benzoazoles and benzoazines.![]()
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Affiliation(s)
- Xiaolong Tuo
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
- China
| | - Shanping Chen
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
- China
| | - Pingyu Jiang
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
- China
| | - Penghui Ni
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
- China
| | - Xiaodong Wang
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
- China
| | - Guo-Jun Deng
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
- China
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15
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Yao H, Willam R, Wang S, He J, Guo T, Liu X. One‐Pot Cascade Transformation of Glucal into Structurally Diverse Drug‐Like Scaffolds. Chem Asian J 2019; 14:4024-4030. [DOI: 10.1002/asia.201900844] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 07/27/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Hui Yao
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
- Key Laboratory of Natural Products Research and Development College of Biological and Pharmaceutical Sciences China Three Gorges University Yichang Hubei 443002 People's Republic of China
| | - Ronny Willam
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Siming Wang
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Jingxi He
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Tai Guo
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Xue‐Wei Liu
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
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16
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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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17
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Grande F, Occhiuzzi MA, Ioele G, Ragno G, Garofalo A. Benzopyrroloxazines containing a bridgehead nitrogen atom as promising scaffolds for the achievement of biologically active agents. Eur J Med Chem 2018; 151:121-144. [DOI: 10.1016/j.ejmech.2018.03.061] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 03/09/2018] [Accepted: 03/20/2018] [Indexed: 12/28/2022]
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18
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Christodoulou MS, Giofrè S, Broggini G, Dalla Via L, Mazza A, Beccalli EM. Copper-Catalyzed Alkoxylation as Key Step to Convert Isatin to Oxazinoindol-2-one Derivatives. ChemistrySelect 2018. [DOI: 10.1002/slct.201800568] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Michael S. Christodoulou
- DISFARM, Sezione di Chimica Generale e Organica “A. Marchesini”; Università degli Studi di Milano; Via Venezian 21 20133 Milano Italy
| | - Sabrina Giofrè
- DISFARM, Sezione di Chimica Generale e Organica “A. Marchesini”; Università degli Studi di Milano; Via Venezian 21 20133 Milano Italy
| | - Gianluigi Broggini
- Dipartimento di Scienza e Alta Tecnologia; Università degli Studi dell'Insubria; Via Valleggio 9 22100 Como Italy
| | - Lisa Dalla Via
- Dipartimento di Scienze del Farmaco; Università degli Studi di Padova; Via F. Marzolo 5 35131 Padova Italy
| | - Alberto Mazza
- DISFARM, Sezione di Chimica Generale e Organica “A. Marchesini”; Università degli Studi di Milano; Via Venezian 21 20133 Milano Italy
| | - Egle M. Beccalli
- DISFARM, Sezione di Chimica Generale e Organica “A. Marchesini”; Università degli Studi di Milano; Via Venezian 21 20133 Milano Italy
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19
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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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20
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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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21
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Pathan MA, Khan FA. N -dealkylative S N Ar reaction using aromatic halides: Synthesis of dihydrobenzoxazine and tetrahydrobenzoxazepine derivatives. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.08.047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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22
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Synthesis, antimicrobial activity, structure-activity relationship and cytotoxic studies of a new series of functionalized (Z)-3-(2-oxo-2-substituted ethylidene)-3,4-dihydro-2H-benzo[b][1,4]oxazin-2-ones. Bioorg Med Chem Lett 2017; 27:4393-4398. [PMID: 28835348 DOI: 10.1016/j.bmcl.2017.08.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 08/08/2017] [Accepted: 08/10/2017] [Indexed: 12/20/2022]
Abstract
A new series of functionalized (Z)-3-(2-oxo-2-substituted ethylidene)-3,4-dihydro-2H-benzo[b][1,4]oxazin-2-ones 23-26, incorporating pharmaceutically privileged substructures such as cyclopropyl, naphthyl, biphenyl and cyclohexylphenyl were synthesized in excellent yields. All the synthesized compounds were screened for their in vitro antibacterial activity against gram-(+)ve and gram-(-)ve bacterial species i.e. S. griseus, S. aureus, B. subtillis and E. coli as well as in vitro antifungal activity against fungal species i.e. F. oxysporium, A. niger, P. funiculosum and T. reesei, respectively. In this study, compounds containing cyclopropyl and cyclohexylphenyl substructures were identified as promising antimicrobial agents than standard drugs, ampicillin and chloramphenicol as well as ketoconazole. SAR study illustrates that electron-withdrawing groups increases the antibacterial as well as antifungal activity of 2-oxo-benzo[1,4]oxazines and vice versa. Compounds 23e and 26e, the most active compounds of the series, displayed promising antibacterial activity than Ampicillin and Chloramphenicol. Moreover, compound 26d showed promising antifungal potency as compared to Ketoconazole. Cytotoxic studies of the active compounds i.e. 23c-e, 24e, 25d and 26d-e found to be non-toxic in nature in 3T3 fibroblast cell lines using MTT assay.
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23
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Khorramabadi-zad A, Azadmanesh M, Bayat Y. Green Synthesis of 1,3-Dibenzylimidazolidine-2,4,5-triones by Oxidation of Hexabenzylhexaazaisowurtzitanes. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.2831] [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)
| | | | - Yadollah Bayat
- Department of Chemistry; Malek Ashtar University of Technology; P.O. Box 16765-3454 Tehran Iran
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24
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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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25
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Wu G, Lv T, Mo W, Yang X, Gao Y, Chen H. One-pot synthesis of tricyclo-1,4-benzoxazines via visible-light photoredox catalysis in continuous flow. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.02.068] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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26
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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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27
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Ellsworth AA, Magyar CL, Hubbell GE, Theisen CC, Holmes D, Mosey RA. One-pot triflic anhydride-mediated synthesis of 1,2-disubstituted 2-imidazolines from N-(2-haloethyl)amides and amines. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.08.040] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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28
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Ghanbari M, Jadidi K, Mehrdad M, Assempour N. A simple route for the synthesis of novel 1,4-benzoxazine derivatives by Baeyer–Villiger oxidation reaction. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.05.086] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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29
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Naidu S, Reddy SR. Copper-catalyzed tandem reaction in ionic liquid: an efficient reusable catalyst and solvent media for the synthesis of fused poly hetero cyclic compounds. RSC Adv 2016. [DOI: 10.1039/c6ra13712a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Herein we report a copper catalyzed tandem reaction for the therapeutically important pyrrolo-/pyrido[2,1-b] benzo[d][1,3]oxazin-1-ones using 2-aminobezyl alcohols, green solvent medium, alkynoic acids, under ligand and base free conditions.
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Affiliation(s)
- Shivaji Naidu
- Department of Chemistry
- School of Advanced Sciences
- VIT University
- Vellore 632014
- India
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30
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Zhang J, Chang X, Bowman EC, Holt CJ, Lodewyk MW, Miller RM, Xia G. Experimental and Theoretical Investigations of the Bromination of Phenols with β and γ Aliphatic Substituents, including Rings. J Org Chem 2015; 80:9292-6. [DOI: 10.1021/acs.joc.5b01866] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jinsong Zhang
- Department
of Chemistry and Biochemistry, California State University, Chico, California 95929-0210, United States
| | - Xiao Chang
- Department
of Chemistry and Biochemistry, California State University, Chico, California 95929-0210, United States
| | - Erich C. Bowman
- Department
of Chemistry and Biochemistry, California State University, Chico, California 95929-0210, United States
| | - Carter J. Holt
- Department
of Chemistry and Biochemistry, California State University, Chico, California 95929-0210, United States
| | - Michael W. Lodewyk
- Department
of Chemistry and Biochemistry, California State University, Chico, California 95929-0210, United States
| | - Randy M. Miller
- Department
of Chemistry and Biochemistry, California State University, Chico, California 95929-0210, United States
| | - Guangming Xia
- Department
of Chemistry and Biochemistry, California State University, Chico, California 95929-0210, United States
- School
of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong 250022, P. R. China
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31
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Karunanidhi S, Karpoormath R, Bera M, Rane RA, Palkar MB. AgNO 3Catalyzed Regio-Selective Synthesis of 3-Alkyl/Aryl-idene-3,4-dihydro-4-tosyl-2H-1,4-Benzoxazine: Novel Anti-Tubercular Scaffolds. J Heterocycl Chem 2015. [DOI: 10.1002/jhet.2472] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sivanandhan Karunanidhi
- Department of Pharmaceutical Chemistry, Discipline of Pharmaceutical Sciences, College of Health Sciences; University of KwaZulu-Natal; Durban South Africa
| | - Rajshekhar Karpoormath
- Department of Pharmaceutical Chemistry, Discipline of Pharmaceutical Sciences, College of Health Sciences; University of KwaZulu-Natal; Durban South Africa
| | - Milan Bera
- Department of Chemistry; Indian Institute of Technology Bombay; Powai Mumbai 400076 India
| | - Rajesh A. Rane
- Department of Pharmaceutical Chemistry, Discipline of Pharmaceutical Sciences, College of Health Sciences; University of KwaZulu-Natal; Durban South Africa
| | - Mahesh B. Palkar
- Department of Pharmaceutical Chemistry, Discipline of Pharmaceutical Sciences, College of Health Sciences; University of KwaZulu-Natal; Durban South Africa
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32
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Ye F, Yang F, Zhao LX, Gao S, Fu Y. Synthesis and Crystal Structure of Novel N-Acyl-2,3-Dimethyl-3,4-2H-1,4-Benzoxazine. JOURNAL OF CHEMICAL RESEARCH 2015. [DOI: 10.3184/174751915x14330651587593] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Novel cis-N-acyl-2,3-dimethyl-3,4-2H-1,4-benzoxazine derivatives were synthesised by acylation of 2,3-dimethyl-3,4-dihydro-2H-1,4-benzoxazine derivatives, which were prepared via the reduction and cyclisation of 3-(o-nitrophenoxy)butan-2-one. The configuration was determined by X-ray crystallography.
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Affiliation(s)
- Fei Ye
- College of Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
| | - Fei Yang
- College of Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
| | - Li-Xia Zhao
- College of Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
| | - Shuang Gao
- College of Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
| | - Ying Fu
- College of Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
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33
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Sankar RK, Kumbhare RS, Dharmaraja AT, Chakrapani H. A phenacrylate scaffold for tunable thiol activation and release. Chem Commun (Camb) 2014; 50:15323-6. [PMID: 25347732 DOI: 10.1039/c4cc07343f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A thiol-selective 2-methyl-3-phenacrylate scaffold with spatiotemporal control over delivery of a cargo is reported. The half-lives of decomposition could be tuned from 30 min to 1 day and the scaffold's utility in thiol-inducible fluorophore release in cell-free as well as within cells is demonstrated.
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Affiliation(s)
- Rathinam K Sankar
- Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pashan Pune 411 008, Maharashtra, India.
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34
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Brahma K, Das B, Chowdhury C. A palladium-catalyzed facile and general method for the stereoselective synthesis of (E)-3-arylidene-3,4-dihydro-2H-1,4-benzoxazines and their naphthoxazine analogues. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.06.036] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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35
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Chouguiat L, Boulcina R, Bouacida S, Merazig H, Debache A. 4-(2-Nitro-benz-yl)-3-phenyl-3,4-di-hydro-2H-1,4-benzoxazin-2-ol. Acta Crystallogr Sect E Struct Rep Online 2014; 70:o863-4. [PMID: 25249912 PMCID: PMC4158540 DOI: 10.1107/s1600536814015645] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2014] [Accepted: 07/04/2014] [Indexed: 11/11/2022]
Abstract
The title compound, C21H18N2O4, crystallizes with two independent molecules (A and B) in the asymmetric unit. In both molecules the oxazine ring has an envelope conformation with the hydroxyl-substituted C atom as the flap. The nitrobenzyl ring and the phenyl ring are almost normal to the mean plane of the benzooxazine ring system with dihdral angles of 85.72 (15) and 82.69 (15)°, respectively, in molecule A, and 85.79 (15) and 87.72 (15)°, respectively, in molecule B. The main difference in the conformation of the two molecules concerns the dihedral angle between the nitrobenzyl ring and the phenyl ring, viz. 79.67 (18) in molecule A and 71.13 (18)° in molecule B. In the crystal, the A and B molecules are linked by an O—H⋯O hydrogen bond. These units are then linked via C—H⋯O hydrogen bonds, forming sheets lying parallel to (010). Further C—H⋯O hydrogen bonds link the sheets to form a three-dimensional network. There are also O—H⋯π and C—H⋯π interactions present, reinforcing the three-dimensional structure.
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Affiliation(s)
- Louisa Chouguiat
- Laboratoire de Synthèse des Molécules d'Intérêts Biologiques, Département de Chimie, Faculté des Sciences Exactes, Université de Constantine 1, 25000 Constantine, Algeria
| | - Raouf Boulcina
- Laboratoire de Synthèse des Molécules d'Intérêts Biologiques, Département de Chimie, Faculté des Sciences Exactes, Université de Constantine 1, 25000 Constantine, Algeria
| | - Sofiane Bouacida
- Unité de Recherche de Chimie de l'Environnement et Moléculaire Structurale, CHEMS, Université Constantine 1, 25000 , Algeria ; Département Sciences de la Matière, Faculté des Sciences Exactes et Sciences de la Nature et de la Vie, Université Oum El Bouaghi 04000, Algeria
| | - Hocine Merazig
- Unité de Recherche de Chimie de l'Environnement et Moléculaire Structurale, CHEMS, Université Constantine 1, 25000 , Algeria
| | - Abdelmadjid Debache
- Laboratoire de Synthèse des Molécules d'Intérêts Biologiques, Département de Chimie, Faculté des Sciences Exactes, Université de Constantine 1, 25000 Constantine, Algeria
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36
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Chen GF, Li HY, Xiao N, Chen BH, Song YL, Li JT, Li ZW. Efficient Synthesis of 2-Imidazolines in the Presence of Molecular Iodine Under Ultrasound Irradiation. Aust J Chem 2014. [DOI: 10.1071/ch13700] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
An efficient one-pot synthesis process for preparing 2-imidazolines from aldehydes and ethylenediamine using molecular iodine and potassium carbonate in absolute ethanol at 25–30°C under ultrasound irradiation is described. The synthetic strategy has the following advantages: mild conditions and low costs requirements, readily available catalyst, short reaction times, simplicity of operation, and good-to-excellent yields.
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37
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Shastri SL, Chougala BM, Kulkarni MV, Shastri LA. Efficient and Convenient Synthesis of 1,4-Benzoxazines, 1,4-Benzothiazines, Spiro-1,4-benzoxazines, and Spiro-1,4-benzothiazines. SYNTHETIC COMMUN 2013. [DOI: 10.1080/00397911.2012.714829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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38
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Lin H, Sun D. RECENT SYNTHETIC DEVELOPMENTS AND APPLICATIONS OF THE ULLMANN REACTION. A REVIEW. ORG PREP PROCED INT 2013; 45. [PMID: 24223434 DOI: 10.1080/00304948.2013.816208] [Citation(s) in RCA: 101] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Hao Lin
- Department of Pharmaceutical Sciences, The Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, HI 96720, USA
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39
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A new route to construct 1,2-dihydroquinoxaline and 1,4-benzoxazine derivatives stereoselectively and its application to novel pyrazolo[1,5-α]quinoxaline oxides. Tetrahedron 2013. [DOI: 10.1016/j.tet.2012.12.060] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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40
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Xiao T, Xiong S, Xie Y, Dong X, Zhou L. Copper-catalyzed synthesis of benzazoles via aerobic oxidative condensation of o-amino/mercaptan/hydroxyanilines with benzylamines. RSC Adv 2013. [DOI: 10.1039/c3ra42175a] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
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41
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Zhang JW, Cai Q, Gu Q, Shi XX, You SL. Enantioselective synthesis of benzofurans and benzoxazines via an olefin cross-metathesis–intramolecular oxo-Michael reaction. Chem Commun (Camb) 2013; 49:7750-2. [DOI: 10.1039/c3cc43937b] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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42
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Benzimidazole derivatives: synthesis, leishmanicidal effectiveness, and molecular docking studies. Med Chem Res 2012. [DOI: 10.1007/s00044-012-0375-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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43
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Reverdito AM, Perillo IA, Salerno A. Synthesis and Synthetic Applications of 1-Aryl-2-alkyl-4,5-dihydro-1H-imidazoles. SYNTHETIC COMMUN 2012. [DOI: 10.1080/00397911.2011.552155] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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44
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Shaikh KA, Patil VA, Shaikh PA. An Efficient and Convenient Synthesis of Imidazolines and Benzimidazoles via Oxidation of Carbon-Nitrogen Bond in Water Media. CHINESE J CHEM 2012. [DOI: 10.1002/cjoc.201100210] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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45
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Redox potentials, laccase oxidation, and antilarval activities of substituted phenols. Bioorg Med Chem 2012; 20:1679-89. [PMID: 22300888 DOI: 10.1016/j.bmc.2012.01.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2011] [Revised: 01/03/2012] [Accepted: 01/11/2012] [Indexed: 11/21/2022]
Abstract
Laccases are copper-containing oxidases that are involved in sclerotization of the cuticle of mosquitoes and other insects. Oxidation of exogenous compounds by insect laccases may have the potential to produce reactive species toxic to insects. We investigated two classes of substituted phenolic compounds, halogenated di- and trihydroxybenzenes and substituted di-tert-butylphenols, on redox potential, oxidation by laccase and effects on mosquito larval growth. An inverse correlation between the oxidation potentials and laccase activity of halogenated hydroxybenzenes was found. Substituted di-tert-butylphenols however were found to impact mosquito larval growth and survival. In particular, 2,4-di-tert-butyl-6-(3-methyl-2-butenyl)phenol (15) caused greater than 98% mortality of Anophelesgambiae larvae in a concentration of 180nM, whereas 2-(3,5-di-tert-butyl-4-hydroxyphenyl)-2-methylpropanal oxime (13) and 6,8-di-tert-butyl-2,2-dimethyl-3,4-dihydro-2H-chromene (33) caused 93% and 92% mortalities in concentrations of 3.4 and 3.7μM, respectively. Larvae treated with di-tert-butylphenolic compounds died just before pupation.
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46
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Yin F, Feng G, Song Q, Qi C. Pd-Catalysed One-Pot Synthesis of 2H-1,4-benzoxazin-3-(4H)-ones from o-halophenols and 2-chloroacetamides. JOURNAL OF CHEMICAL RESEARCH 2012. [DOI: 10.3184/174751912x13263685422317] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A Pd-catalysed cascade protocol, consisting of intermolecular O-alkylation and spontaneous intramolecular amidation, has been established for efficient synthesis of 2 H-1,4-benzoxazin-3-(4 H)-ones from o-halophenols and 2-chloroacetamides. A varity of substrates afford the desired products in good to excellent yields. It is particularly attractive for synthesis of a library of 2 H-1,4-benzoxazin-3-(4 H)-ones.
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Affiliation(s)
- Fangling Yin
- College of Chemical Engineering and Material Science, Zhejiang University of Technology, Hangzhou, 310027, P. R. China
| | - Gaofeng Feng
- The Institute of Applied Chemistry, Shaoxing University, Shaoxing, 312050, P. R. China
| | - Qingbao Song
- College of Chemical Engineering and Material Science, Zhejiang University of Technology, Hangzhou, 310027, P. R. China
| | - Chenze Qi
- The Institute of Applied Chemistry, Shaoxing University, Shaoxing, 312050, P. R. China
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47
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Mizar P, Hormi M, Rajbangshi M, Myrboh B. Synthesis of 2,3-dihydro-6H-1-oxa-3a-aza-phenalene and its benzo/hetero-fused analog. J Heterocycl Chem 2011. [DOI: 10.1002/jhet.680] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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48
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A general synthesis of N-substituted 1,4-benzoxazine- and 1,4-benzothiazine-2-carboxylates via copper-catalyzed intramolecular amination of arylbromides. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.06.081] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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49
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Xia Z, Farhana L, Correa RG, Das JK, Castro DJ, Yu J, Oshima RG, Reed JC, Fontana JA, Dawson MI. Heteroatom-Substituted Analogues of Orphan Nuclear Receptor Small Heterodimer Partner Ligand and Apoptosis Inducer (E)-4-[3-(1-Adamantyl)-4-hydroxyphenyl]-3-chlorocinnamic Acid. J Med Chem 2011; 54:3793-816. [DOI: 10.1021/jm200051z] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zebin Xia
- Cancer Center, Sanford-Burnham Medical Research Institute, La Jolla, California 92037, United States
| | - Lulu Farhana
- Department of Veterans Affairs Medical Center and Wayne State University School of Medicine, Detroit, Michigan 48201, United States
| | - Ricardo G. Correa
- Cancer Center, Sanford-Burnham Medical Research Institute, La Jolla, California 92037, United States
| | - Jayanta K. Das
- Department of Veterans Affairs Medical Center and Wayne State University School of Medicine, Detroit, Michigan 48201, United States
| | - David J. Castro
- Cancer Center, Sanford-Burnham Medical Research Institute, La Jolla, California 92037, United States
| | - Jinghua Yu
- Cancer Center, Sanford-Burnham Medical Research Institute, La Jolla, California 92037, United States
| | - Robert G. Oshima
- Cancer Center, Sanford-Burnham Medical Research Institute, La Jolla, California 92037, United States
| | - John C. Reed
- Cancer Center, Sanford-Burnham Medical Research Institute, La Jolla, California 92037, United States
| | - Joseph A. Fontana
- Department of Veterans Affairs Medical Center and Wayne State University School of Medicine, Detroit, Michigan 48201, United States
| | - Marcia I. Dawson
- Cancer Center, Sanford-Burnham Medical Research Institute, La Jolla, California 92037, United States
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50
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Samant BS, Kabalka GW. A novel catalytic process for trifluoromethylation of bromoaromatic compounds. Chem Commun (Camb) 2011; 47:7236-8. [DOI: 10.1039/c1cc12098k] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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