1
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Koca İ, Kamaci V, Özsoy C, Sert Y, Kani İ, Tutar L, Tutar Y. Pyrazolyl‐Benzoxazinone Derivatives as Dual Hsp Inhibitors in Human Breast Cancer. ChemistrySelect 2022. [DOI: 10.1002/slct.202200359] [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)
- İrfan Koca
- Faculty of Art and Science Department of Chemistry Yozgat Bozok University Yozgat Turkey
| | - Volkan Kamaci
- Faculty of Art and Science Department of Chemistry Yozgat Bozok University Yozgat Turkey
| | - Ceylan Özsoy
- Faculty of Pharmacy Department of Basic Pharmaceutical Sciences Division of Biochemistry Cumhuriyet University Sivas Turkey
| | - Yusuf Sert
- Sorgun Vocational School Yozgat Bozok University Yozgat Turkey
| | - İbrahim Kani
- Department of Chemistry Faculty of Science Eskisehir Technical University Eskisehir Turkey
- Medicinal Plants and Medicine Research Center of Anadolu University Eskisehir Turkey
| | - Lütfi Tutar
- Department of Molecular Biology and Genetics Faculty of Sciences Ahi Evran University Kırşehir Turkey
| | - Yusuf Tutar
- Faculty of Pharmacy Department of Basic Pharmaceutical Sciences D[ivision of Biochemistry University of Health Sciences-Turkey Istanbul Turkey
- Health Sciences Institutes Division of Oncology University of Health Sciences-Turkey Istanbul Turkey
- Fuat Sezgin Validebağ Research Center University of Health Sciences-Turkey Istanbul Turkey
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2
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Zhang J, Wang S, Wang JS, Ying J, Wu XF. Palladium-catalyzed carbonylative synthesis of indole-3-carboxamides from 2-ethynylanilines and nitroarenes. Org Chem Front 2022. [DOI: 10.1039/d2qo01065h] [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 facile and straightforward approach for the expedite construction of indole-3-carboxamide skeletons via a palladium-catalyzed carbonylative cyclization of 2-ethynylanilines with nitroarenes has been developed.
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Affiliation(s)
- Jiangjie Zhang
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Shangyuan Wang
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Jian-Shu Wang
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Jun Ying
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Xiao-Feng Wu
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023 Dalian, Liaoning, China
- Leibniz-Institut für Katalyse e. V., Albert-Einstein-Straβe 29a, 18059 Rostock, Germany
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3
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Capecchi A, Reymond JL. Classifying natural products from plants, fungi or bacteria using the COCONUT database and machine learning. J Cheminform 2021; 13:82. [PMID: 34663470 PMCID: PMC8524952 DOI: 10.1186/s13321-021-00559-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 10/02/2021] [Indexed: 01/13/2023] Open
Abstract
Natural products (NPs) represent one of the most important resources for discovering new drugs. Here we asked whether NP origin can be assigned from their molecular structure in a subset of 60,171 NPs in the recently reported Collection of Open Natural Products (COCONUT) database assigned to plants, fungi, or bacteria. Visualizing this subset in an interactive tree-map (TMAP) calculated using MAP4 (MinHashed atom pair fingerprint) clustered NPs according to their assigned origin ( https://tm.gdb.tools/map4/coconut_tmap/ ), and a support vector machine (SVM) trained with MAP4 correctly assigned the origin for 94% of plant, 89% of fungal, and 89% of bacterial NPs in this subset. An online tool based on an SVM trained with the entire subset correctly assigned the origin of further NPs with similar performance ( https://np-svm-map4.gdb.tools/ ). Origin information might be useful when searching for biosynthetic genes of NPs isolated from plants but produced by endophytic microorganisms.
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Affiliation(s)
- Alice Capecchi
- 1 Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012, Bern, Switzerland
| | - Jean-Louis Reymond
- 1 Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012, Bern, Switzerland.
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4
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Long L, Wang J, Gu L, Yang S, Qiao L, Luo G, Chen Z. Hypervalent Iodine(III)-Promoted Radical Oxidative C-H Annulation of Arylamines with α-Keto Acids. J Org Chem 2021; 86:12084-12092. [PMID: 34342452 DOI: 10.1021/acs.joc.1c01424] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A novel catalyst-free radical oxidative C-H annulation reaction of arylamines with α-keto acids toward benzoxazin-2-ones synthesis under mild conditions was developed. This hypervalent iodine(III)-promoted process eliminated the use of a metal catalyst or additive with high levels of functional group tolerance. Hypervalent iodine(III) was both an oxidant and a radical initiator for this reaction. The synthetic utility of this method was confirmed by the synthesis of the natural product cephalandole A.
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Affiliation(s)
- Lipeng Long
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, P.R. China
| | - Jieyan Wang
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, P.R. China
| | - Liuqing Gu
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, P.R. China
| | - Shiguang Yang
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, P.R. China
| | - Liang Qiao
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, P.R. China
| | - Guotian Luo
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, P.R. China
| | - Zhengwang Chen
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, P.R. China
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5
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Kumar Mehra M, Malik M, Kumar B, Kumar D. Chemoselective Cu-catalyzed synthesis of diverse N-arylindole carboxamides, β-oxo amides and N-arylindole-3-carbonitriles using diaryliodonium salts. Org Biomol Chem 2021; 19:1109-1114. [PMID: 33434249 DOI: 10.1039/d0ob02247k] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Chemoselective copper-catalyzed synthesis of diverse N-arylindole-3-carboxamides, β-oxo amides and N-arylindole-3-carbonitriles from readily accessible indole-3-carbonitriles, α-cyano ketones and diaryliodonium salts has been developed. Diverse N-arylindole-3-carboxamides and β-oxo amides were successfully achieved in high yields under copper-catalyzed neutral reaction conditions, and the addition of an organic base (DIPEA) resulted in a completely different selectivity pattern to produce N-arylindole-3-carbonitriles. Moreover, the importance of the developed methodology was realized by the synthesis of indoloquinolones and N-((1H-indol-3-yl)methyl)aniline and by a single-step gram-scale synthesis of the naturally occurring cephalandole A analogue.
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Affiliation(s)
- Manish Kumar Mehra
- Department of Chemistry, Birla Institute of Technology and Science, Pilani 333 031, Rajasthan, India.
| | - Monika Malik
- Department of Chemistry, Birla Institute of Technology and Science, Pilani 333 031, Rajasthan, India.
| | - Bintu Kumar
- Department of Chemistry, Birla Institute of Technology and Science, Pilani 333 031, Rajasthan, India.
| | - Dalip Kumar
- Department of Chemistry, Birla Institute of Technology and Science, Pilani 333 031, Rajasthan, India.
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6
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Balakrishnan MH, Kanagaraj M, Sankar V, Ravva MK, Mannathan S. Synthesis of ortho-arylated and alkenylated benzamides by palladium-catalyzed denitrogenative cross-coupling reactions of 1,2,3-benzotriazin-4(3 H)-ones with organoboronic acids. NEW J CHEM 2021. [DOI: 10.1039/d1nj03706d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
An efficient palladium-catalyzed denitrogenative cross-coupling reaction of 1,2,3-benzotriazin-4(3H)-ones with organoboronic acids is described. The reaction affords various ortho-aryl and alkenylated benzamides in good to high yields.
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Affiliation(s)
- Madasamy Hari Balakrishnan
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Chennai, 603203, India
| | - Madasamy Kanagaraj
- Department of Chemistry SRM University, AP, Andhra Pradesh 522502, India
| | - Velayudham Sankar
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Chennai, 603203, India
| | - Mahesh Kumar Ravva
- Department of Chemistry SRM University, AP, Andhra Pradesh 522502, India
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7
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Zhu LJ, Cao F, Su XX, Li CY, Lin B, Wang HF, Yao XS, Zhang X, Jia JM, Liu HW. Baphicacanthcusines A–E, Bisindole Alkaloids from the Leaves of Baphicacanthus cusia (Nees) Bremek. J Org Chem 2020; 85:8580-8587. [DOI: 10.1021/acs.joc.0c00949] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Ling-Juan Zhu
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Fei Cao
- College of Pharmaceutical Sciences, Hebei University, Baoding 071002, China
| | - Xiang-Xin Su
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Chun-Yu Li
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Bin Lin
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Hai-Feng Wang
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Xin-Sheng Yao
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Xue Zhang
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Jing-Ming Jia
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Hong-Wei Liu
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
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8
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Palmieri A. Synthesis of Heterocyclic Systems Starting from Carbonyl and Carboxyl Functionalized Nitro Compounds by One-Pot Processes. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000079] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Alessandro Palmieri
- Green Chemistry Group; School of Science and Technology; Chemistry Division; University of Camerino; Via S. Agostino n. 1 62032 Camerino Italy
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9
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Shi X, Dong M, Duan X, Cao T, Qi J. N
‐Heterocyclic Carbene Catalyzed [3+2] Cycloaddition of Enals with
β,γ
‐Unsaturated
α
‐Ketimino Esters for the Synthesis of Multisubstituted Cyclopentanone. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901144] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Xiao‐Qian Shi
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental ScienceHebei University
| | - Meng‐Die Dong
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental ScienceHebei University
| | - Xiao‐Yong Duan
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental ScienceHebei University
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of EducationHebei University
| | - Teng‐Liang Cao
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental ScienceHebei University
| | - Jing Qi
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental ScienceHebei University
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of EducationHebei University
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10
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Kim DH, Kim CS, Subedi L, Kim SY, Lee KR. Alkaloids of NIRAM, natural dye from Polygonum tinctorium, and their anti-inflammatory activities. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.151130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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11
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Saied T, Demangeat C, Panossian A, Leroux FR, Fort Y, Comoy C. Transition‐Metal‐Free Heterobiaryl Synthesis via Aryne Coupling. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900130] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Tarak Saied
- Université de Lorraine CNRS, L2CM UMR7053 B.P. 70239 54506 Vandoeuvre‐lès‐Nancy France
| | - Catherine Demangeat
- Université de Lorraine CNRS, L2CM UMR7053 B.P. 70239 54506 Vandoeuvre‐lès‐Nancy France
| | - Armen Panossian
- Université de Haute‐Alsace Université de Strasbourg 67000 Strasbourg France
| | - Frédéric R. Leroux
- Université de Haute‐Alsace Université de Strasbourg 67000 Strasbourg France
| | - Yves Fort
- Université de Lorraine CNRS, L2CM UMR7053 B.P. 70239 54506 Vandoeuvre‐lès‐Nancy France
| | - Corinne Comoy
- Université de Lorraine CNRS, L2CM UMR7053 B.P. 70239 54506 Vandoeuvre‐lès‐Nancy France
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12
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Kaur N. Synthesis of Three‐Membered and Four‐Membered Heterocycles with the Assistance of Photochemical Reactions. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3491] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Navjeet Kaur
- Department of Chemistry Banasthali Vidyapith Banasthali Rajasthan 304022 India
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13
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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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14
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Demangeat C, Saied T, Ramozzi R, Ingrosso F, Ruiz-Lopez M, Panossian A, Leroux FR, Fort Y, Comoy C. Transition-Metal-Free Approach for the Direct Arylation of Thiophene: Experimental and Theoretical Investigations towards the (Het)-Aryne Route. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801173] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Catherine Demangeat
- Université de Lorraine; CNRS, L2CM UMR7053; B.P. 70239 54506 Vandoeuvre-lès-Nancy France
| | - Tarak Saied
- Université de Lorraine; CNRS, L2CM UMR7053; B.P. 70239 54506 Vandoeuvre-lès-Nancy France
| | - Romain Ramozzi
- Université de Lorraine; CNRS, LPCT UMR 7019; B.P. 70239 54506 Vandoeuvre-lès-Nancy France
| | - Francesca Ingrosso
- Université de Lorraine; CNRS, LPCT UMR 7019; B.P. 70239 54506 Vandoeuvre-lès-Nancy France
| | - Manuel Ruiz-Lopez
- Université de Lorraine; CNRS, LPCT UMR 7019; B.P. 70239 54506 Vandoeuvre-lès-Nancy France
| | - Armen Panossian
- Université de Strasbourg; Université de Haute-Alsace, CNRS, LIMA, UMR 7042, ECPM; 67000 Strasbourg France
| | - Frédéric R. Leroux
- Université de Strasbourg; Université de Haute-Alsace, CNRS, LIMA, UMR 7042, ECPM; 67000 Strasbourg France
| | - Yves Fort
- Université de Lorraine; CNRS, L2CM UMR7053; B.P. 70239 54506 Vandoeuvre-lès-Nancy France
| | - Corinne Comoy
- Université de Lorraine; CNRS, L2CM UMR7053; B.P. 70239 54506 Vandoeuvre-lès-Nancy France
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15
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Vidyasagar A, Shi J, Kreitmeier P, Reiser O. Bromo- or Methoxy-Group-Promoted Umpolung Electron Transfer Enabled, Visible-Light-Mediated Synthesis of 2-Substituted Indole-3-glyoxylates. Org Lett 2018; 20:6984-6989. [DOI: 10.1021/acs.orglett.8b02725] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Adiyala Vidyasagar
- University of Regensburg, Institute of Organic Chemistry, Universitätsstr. 31, 93053, Regensburg, Germany
| | - Jinwei Shi
- University of Regensburg, Institute of Organic Chemistry, Universitätsstr. 31, 93053, Regensburg, Germany
| | - Peter Kreitmeier
- University of Regensburg, Institute of Organic Chemistry, Universitätsstr. 31, 93053, Regensburg, Germany
| | - Oliver Reiser
- University of Regensburg, Institute of Organic Chemistry, Universitätsstr. 31, 93053, Regensburg, Germany
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16
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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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17
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Sharma V, Jaiswal PK, Kumar K, Saran M, Mathur M, Swami AK, Chaudhary S. An efficient synthesis and biological evaluation of novel analogues of natural product Cephalandole A: A new class of antimicrobial and antiplatelet agents. Fitoterapia 2018; 129:13-19. [DOI: 10.1016/j.fitote.2018.06.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 05/29/2018] [Accepted: 06/03/2018] [Indexed: 01/05/2023]
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18
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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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19
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Esguerra KVN, Xu W, Lumb JP. Unified Synthesis of 1,2-Oxy-aminoarenes via a Bio-inspired Phenol-Amine Coupling. Chem 2017. [DOI: 10.1016/j.chempr.2017.03.003] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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20
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Liu XX, Luo XL, Wu ZY, Cui XF, Zhou XQ, He YQ, Huang GS. Oxidative Recyclization of 1H-Indoles for Synthesis of 2-Indolylbenzoxazinones via Cleavage of the C2–C3 Bond with AIBN under Air. J Org Chem 2017; 82:2107-2113. [DOI: 10.1021/acs.joc.6b02893] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Xing-Xing Liu
- State
Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous
Metal Chemistry and Resources Utilization of Gansu Province, Department
of Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Xin-Liang Luo
- State
Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous
Metal Chemistry and Resources Utilization of Gansu Province, Department
of Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Zhao-Yang Wu
- The Environmental
Protection Agency of Rudong Coastal Economic Development Zone, Nantong 226400, China
| | - Xin-Feng Cui
- State
Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous
Metal Chemistry and Resources Utilization of Gansu Province, Department
of Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Xiao-Qiang Zhou
- State
Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous
Metal Chemistry and Resources Utilization of Gansu Province, Department
of Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Yong-Qin He
- State
Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous
Metal Chemistry and Resources Utilization of Gansu Province, Department
of Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Guo-Sheng Huang
- State
Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous
Metal Chemistry and Resources Utilization of Gansu Province, Department
of Chemistry, Lanzhou University, Lanzhou 730000, China
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21
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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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22
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Huo C, Dong J, Su Y, Tang J, Chen F. Iron-catalyzed oxidative sp3 carbon–hydrogen bond functionalization of 3,4-dihydro-1,4-benzoxazin-2-ones. Chem Commun (Camb) 2016; 52:13341-13344. [DOI: 10.1039/c6cc05885j] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Iron-catalyzed sp3 C–H bond functionalization of benzoxazinones has been developed and applied for the synthesis of natural product cephalandole A.
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Affiliation(s)
- Congde Huo
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- China
| | - Jie Dong
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- China
| | - Yingpeng Su
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- China
| | - Jing Tang
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- China
| | - Fengjuan Chen
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- China
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23
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Rossi R, Lessi M, Manzini C, Marianetti G, Bellina F. Transition Metal-Free Direct CH (Hetero)arylation of Heteroarenes: A Sustainable Methodology to Access (Hetero)aryl-Substituted Heteroarenes. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500799] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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24
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Papaneophytou C, Alexiou P, Papakyriakou A, Ntougkos E, Tsiliouka K, Maranti A, Liepouri F, Strongilos A, Mettou A, Couladouros E, Eliopoulos E, Douni E, Kollias G, Kontopidis G. Synthesis and biological evaluation of potential small moleculeinhibitors of tumor necrosis factor. MEDCHEMCOMM 2015. [DOI: 10.1039/c5md00023h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
A series of 39 novel SPD-304 analogs were designed synthesized and evaluated as inhibitors of TNF.
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Affiliation(s)
| | - Polyxeni Alexiou
- Laboratory of General Chemistry
- Department of Science
- Agricultural University of Athens
- Athens 11855
- Greece
| | - Athanasios Papakyriakou
- Laboratory of Genetics
- Department of Biotechnology
- Agricultural University of Athens
- Athens 11855
- Greece
| | | | | | | | | | | | - Anthi Mettou
- Department of Biochemistry
- Veterinary School
- University of Thessaly
- Karditsa 43100
- Greece
| | - Elias Couladouros
- Laboratory of General Chemistry
- Department of Science
- Agricultural University of Athens
- Athens 11855
- Greece
| | - Elias Eliopoulos
- Laboratory of Genetics
- Department of Biotechnology
- Agricultural University of Athens
- Athens 11855
- Greece
| | - Eleni Douni
- Laboratory of Genetics
- Department of Biotechnology
- Agricultural University of Athens
- Athens 11855
- Greece
| | - George Kollias
- Biomedical Sciences Research Center “Alexander Fleming”
- Vari
- Greece
| | - George Kontopidis
- Department of Biochemistry
- Veterinary School
- University of Thessaly
- Karditsa 43100
- Greece
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25
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Alexiou P, Papakyriakou A, Ntougkos E, Papaneophytou CP, Liepouri F, Mettou A, Katsoulis I, Maranti A, Tsiliouka K, Strongilos A, Chaitidou S, Douni E, Kontopidis G, Kollias G, Couladouros E, Eliopoulos E. Rationally Designed Less Toxic SPD-304 Analogs and Preliminary Evaluation of Their TNF Inhibitory Effects. Arch Pharm (Weinheim) 2014; 347:798-805. [DOI: 10.1002/ardp.201400198] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Revised: 06/26/2014] [Accepted: 07/03/2014] [Indexed: 12/11/2022]
Affiliation(s)
- Polyxeni Alexiou
- Laboratory of General Chemistry; Department of Science; Agricultural University of Athens; Athens Greece
| | - Athanasios Papakyriakou
- Laboratory of Genetics; Department of Biotechnology; Agricultural University of Athens; Athens Greece
| | | | - Christos P. Papaneophytou
- Institute for Research and Technology - Thessaly (I.RE.TE.TH.)/The Centre for Research & Technology Hellas (CE.R.TH.); Technology Park of Thessaly; Volos Greece
- Veterinary School; University of Thessaly; Karditsa Greece
| | | | - Anthi Mettou
- Institute for Research and Technology - Thessaly (I.RE.TE.TH.)/The Centre for Research & Technology Hellas (CE.R.TH.); Technology Park of Thessaly; Volos Greece
- Veterinary School; University of Thessaly; Karditsa Greece
| | | | | | | | | | | | - Eleni Douni
- Laboratory of Genetics; Department of Biotechnology; Agricultural University of Athens; Athens Greece
- Biomedical Sciences Research Center “Alexander Fleming”; Vari; Greece
| | - George Kontopidis
- Institute for Research and Technology - Thessaly (I.RE.TE.TH.)/The Centre for Research & Technology Hellas (CE.R.TH.); Technology Park of Thessaly; Volos Greece
- Veterinary School; University of Thessaly; Karditsa Greece
| | - George Kollias
- Biomedical Sciences Research Center “Alexander Fleming”; Vari; Greece
| | - Elias Couladouros
- Laboratory of General Chemistry; Department of Science; Agricultural University of Athens; Athens Greece
| | - Elias Eliopoulos
- Laboratory of Genetics; Department of Biotechnology; Agricultural University of Athens; Athens Greece
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26
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Chatterjee N, Sarkar S, Pal R, Sen AK. An approach toward the syntheses of triazolo benzoxazines, triazolo quinoxalines, triazolo benzodiazepines, triazolo benzoxazepines, and triazolo benzothiazines via a simple and convenient protocol using basic alumina as solid support. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.02.080] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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27
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Chen XB, Wang XY, Zhu DD, Yan SJ, Lin J. Three-component domino reaction synthesis of highly functionalized bicyclic pyrrole derivatives. Tetrahedron 2014. [DOI: 10.1016/j.tet.2013.12.062] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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28
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Yan S, Ye L, Liu M, Chen J, Ding J, Gao W, Huang X, Wu H. Unexpected TFA-catalyzed tandem reaction of benzo[d]oxazoles with 2-oxo-2-arylacetic acids: synthesis of 3-aryl-2H-benzo[b][1,4]oxazin-2-ones and cephalandole A. RSC Adv 2014. [DOI: 10.1039/c4ra01605j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
TFA-catalyzed reaction of benzo[d]oxazoles with 2-oxo-2-arylacetic acids: synthesis of 3-aryl-2H-benzo[b][1,4]oxazin-2-ones and the natural product cephalandole A.
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Affiliation(s)
- Shaoxi Yan
- College of Chemistry & Materials Engineering
- Wenzhou University
- Wenzhou 325035, P. R. China
| | - Leping Ye
- The Second Affiliated Hospital
- Wenzhou Medical University
- Wenzhou 325000, P. R. China
| | - Miaochang Liu
- College of Chemistry & Materials Engineering
- Wenzhou University
- Wenzhou 325035, P. R. China
| | - Jiuxi Chen
- College of Chemistry & Materials Engineering
- Wenzhou University
- Wenzhou 325035, P. R. China
| | - Jinchang Ding
- College of Chemistry & Materials Engineering
- Wenzhou University
- Wenzhou 325035, P. R. China
| | - Wenxia Gao
- College of Chemistry & Materials Engineering
- Wenzhou University
- Wenzhou 325035, P. R. China
| | - Xiaobo Huang
- College of Chemistry & Materials Engineering
- Wenzhou University
- Wenzhou 325035, P. R. China
| | - Huayue Wu
- College of Chemistry & Materials Engineering
- Wenzhou University
- Wenzhou 325035, P. R. China
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29
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Prashanth MK, Revanasiddappa HD. Synthesis of some new glutamine linked 2,3-disubstituted quinazolinone derivatives as potent antimicrobial and antioxidant agents. Med Chem Res 2012. [DOI: 10.1007/s00044-012-0269-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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30
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Elyashberg M, Blinov K, Molodtsov S, Williams A. Elucidating 'undecipherable' chemical structures using computer-assisted structure elucidation approaches. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2012; 50:22-27. [PMID: 22259196 DOI: 10.1002/mrc.2849] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2011] [Revised: 09/14/2011] [Accepted: 10/13/2011] [Indexed: 05/31/2023]
Abstract
Structure elucidation using 2D NMR data and application of traditional methods of structure elucidation are known to fail for certain problems. In this work, it is shown that computer-assisted structure elucidation methods are capable of solving such problems. We conclude that it is now impossible to evaluate the capabilities of novel NMR experimental techniques in isolation from expert systems developed for processing fuzzy, incomplete and contradictory information obtained from 2D NMR spectra.
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Affiliation(s)
- Mikhail Elyashberg
- Advanced Chemistry Development, Moscow Department, 6 Akademik Bakulev Street, Moscow, 117513, Russia
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31
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Abstract
The largely unexplored marine world that presumably harbors the most biodiversity may be the vastest resource to discover novel 'validated' structures with novel modes of action that cover biologically relevant chemical space. Several challenges, including the supply problem and target identification, need to be met for successful drug development of these often complex molecules; however, approaches are available to overcome the hurdles. Advances in technologies such as sampling strategies, nanoscale NMR for structure determination, total chemical synthesis, fermentation and biotechnology are all crucial to the success of marine natural products as drug leads. We illustrate the high degree of innovation in the field of marine natural products, which in our view will lead to a new wave of drugs that flow into the market and pharmacies in the future.
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32
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Smith SG, Goodman JM. Assigning stereochemistry to single diastereoisomers by GIAO NMR calculation: the DP4 probability. J Am Chem Soc 2011; 132:12946-59. [PMID: 20795713 DOI: 10.1021/ja105035r] [Citation(s) in RCA: 631] [Impact Index Per Article: 48.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
GIAO NMR shift calculation has been applied to the challenging task of reliably assigning stereochemistry with quantifiable confidence when only one set of experimental data are available. We have compared several approaches for assigning a probability to each candidate structure and have tested the ability of these methods to distinguish up to 64 possible diastereoisomers of 117 different molecules, using NMR shifts obtained in rapid and computationally inexpensive single-point calculations on molecular mechanics geometries without time-consuming ab initio geometry optimization. We show that a probability analysis based on the errors in each (13)C or (1)H shift is significantly more successful at making correct assignments with high confidence than are probabilities based on the correlation coefficient and mean absolute error parameters. Our new probability measure, which we have termed DP4, complements the probabilities obtained from our previously developed CP3 parameter, which applies to the case of assigning a pair of diastereoisomers when one has both experimental data sets. We illustrate the application of DP4 to assigning the stereochemistry or structure of 21 natural products that were originally misassigned in the literature or that required extensive synthesis of diastereoisomers to establish their stereochemistry.
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Affiliation(s)
- Steven G Smith
- Unilever Centre for Molecular Science Informatics, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK
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33
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Swart I, Gross L, Liljeroth P. Single-molecule chemistry and physics explored by low-temperature scanning probe microscopy. Chem Commun (Camb) 2011; 47:9011-23. [DOI: 10.1039/c1cc11404b] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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34
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35
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Organic structure determination using atomic-resolution scanning probe microscopy. Nat Chem 2010; 2:821-5. [PMID: 20861896 DOI: 10.1038/nchem.765] [Citation(s) in RCA: 184] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2010] [Accepted: 06/18/2010] [Indexed: 11/08/2022]
Abstract
Nature offers a huge and only partially explored variety of small molecules with potential pharmaceutical applications. Commonly used characterization methods for natural products include spectroscopic techniques such as nuclear magnetic resonance spectroscopy and mass spectrometry. In some cases, however, these techniques do not succeed in the unambiguous determination of the chemical structure of unknown compounds. To validate the usefulness of scanning probe microscopy as an adjunct to the other tools available for organic structure analysis, we used the natural product cephalandole A, which had previously been misassigned, and later corrected. Our results, corroborated by density functional theory, demonstrate that direct imaging of an organic compound with atomic-resolution force microscopy facilitates the accurate determination of its chemical structure. We anticipate that our method may be developed further towards molecular imaging with chemical sensitivity, and will become generally useful in solving certain classes of natural product structures.
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36
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Ishikura M, Yamada K, Abe T. Simple indole alkaloids and those with a nonrearranged monoterpenoid unit. Nat Prod Rep 2010; 27:1630-80. [DOI: 10.1039/c005345g] [Citation(s) in RCA: 210] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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37
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Elyashberg M, Williams AJ, Blinov K. Structural revisions of natural products by Computer-Assisted Structure Elucidation (CASE) systems. Nat Prod Rep 2010; 27:1296-328. [DOI: 10.1039/c002332a] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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38
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Recent advances in the synthesis of (hetero)aryl-substituted heteroarenes via transition metal-catalysed direct (hetero)arylation of heteroarene C–H bonds with aryl halides or pseudohalides, diaryliodonium salts, and potassium aryltrifluoroborates. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.10.015] [Citation(s) in RCA: 522] [Impact Index Per Article: 34.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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39
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Ballini R, Palmieri A, Talaq MA, Gabrielli S. Preparation of 2H-1,4-Benzoxazin-2-one Derivatives under Heterogeneous ConditionsviaDomino Process. Adv Synth Catal 2009. [DOI: 10.1002/adsc.200900627] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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40
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Chowdhury C, Sasmal AK, Dutta PK. Efficient synthesis of [1,2,3]triazolo[5,1-c][1,4]benzoxazines through palladium–copper catalysis. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.03.120] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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41
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Lygin AV, de Meijere A. Reactions of ortho-Lithiophenyl (-Hetaryl) Isocyanides with Carbonyl Compounds: Rearrangements of 2-Metalated 4H-3,1-Benzoxazines. J Org Chem 2009; 74:4554-9. [DOI: 10.1021/jo9004734] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alexander V. Lygin
- Institut für Organische und Biomolekulare Chemie der Georg-August-Universität Göttingen, Tammannstrasse 2, D-37077 Göttingen, Germany
| | - Armin de Meijere
- Institut für Organische und Biomolekulare Chemie der Georg-August-Universität Göttingen, Tammannstrasse 2, D-37077 Göttingen, Germany
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