1
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Yang QQ, Zheng ZH, Wang M, Zhou J, Peng C, Du W, Zhan G, Han B. Ag-Catalyzed Switchable Synthesis of Site-Specifically Functionalized Pyrroles via Azafulvenium Intermediates. Org Lett 2024. [PMID: 38810217 DOI: 10.1021/acs.orglett.4c01437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
Here, we present a versatile, silver-catalyzed multi-auto-tandem reaction involving enamines, alkynals, and nucleophiles, utilizing the highly reactive intermediate azafulvenium. This method allows for flexible and switchable regiodivergent reactions through either intermolecular or intramolecular nucleophilic attacks, which can be controlled by adjusting the catalytic conditions. A range of site-specific functionalized or polycyclic fused pyrrole products were efficiently produced with a high level of chemocontrol.
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Affiliation(s)
- Qian-Qian Yang
- School of Pharmacy, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China
- State Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Ze-Hong Zheng
- School of Pharmacy, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China
| | - Meng Wang
- School of Pharmacy, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China
| | - Jin Zhou
- School of Pharmacy, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China
| | - Cheng Peng
- School of Pharmacy, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China
| | - Wei Du
- State Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Gu Zhan
- School of Pharmacy, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China
| | - Bo Han
- School of Pharmacy, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China
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2
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Mukhtar SS, Sroor FM, Hafez TS, Abdelraof M, El-Sayed AF, Laboud YN, Hassaneen HM, Saleh FM. Evaluation of Pyrazolyl-Indolizine Derivatives as Antimicrobial Agents: Synthesis, In vitro, In silico ADMET and Molecular Docking Studies. Chem Biodivers 2024:e202400825. [PMID: 38802323 DOI: 10.1002/cbdv.202400825] [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: 03/30/2024] [Revised: 05/22/2024] [Accepted: 05/27/2024] [Indexed: 05/29/2024]
Abstract
Herein, we report analogues of s-indacene by the synthesis of novel indolizine derivatives. Using chloroform as an appropriate solvent, sixteen derivatives of pyrazolyl-indolizine (4--19) were prepared by the reaction of 3-(dimethylamino)-1-(1H-pyrrol-2-yl)prop-2-en-1-one (1) with hydrazonoyl chloride derivatives (2) in the presence of triethylamine in good to excellent yields. We used NMR spectra, IR, mass spectrometry, as well as elemental analyses to prove the chemical structures and the purity of the synthesized compounds 4-19. Among all tested compounds 5, 9, 13 and 19 had a potent antimicrobial efficiency against Bacillus subtilis, Staphylococcus aureus, Pseudomonas aerginousea, Sallmonella typhemerium, and Candida albicans. Furthermore, a significant increase in lipid peroxidation (LPO) toward the Gram-negative bacteria, Pseudomonas aeruginosa when treated with compound 9 was observed, while compound 13 remarkably increased the cell membrane oxidation of Salmonella typhimurium. Additionally, we utilized docking studies and in silico methods to evaluate the drug-likeness, physicochemical properties, and ADMET profiles of the compounds. The results of the molecular docking simulation revealed that the synthesized compounds displayed decreased binding energy when interacting with the active sites of important enzymes, including Sterol 14-demethylase of C. albicans, Dihydropteroate synthase of S. aureus, LasR of P. aeruginosa, Glucosamine-6-phosphate synthase of S. typhimurium, and Gyrase B of B. subtilis.
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Affiliation(s)
- Shorouk S Mukhtar
- Organometallic and Organometalloid Chemistry Department, National Research Centre, 12622, Cairo, Egypt
| | - Farid M Sroor
- Organometallic and Organometalloid Chemistry Department, National Research Centre, 12622, Cairo, Egypt
| | - Taghrid S Hafez
- Organometallic and Organometalloid Chemistry Department, National Research Centre, 12622, Cairo, Egypt
| | - Mohamed Abdelraof
- Microbial Chemistry Department, Biotechnology Research Institute, National Research Centre, Giza, Egypt
| | - Ahmed F El-Sayed
- Microbial Genetics Department, Biotechnology Research Institute, National Research Centre, Giza, Egypt
- Egypt Center for Research and Regenerative Medicine (ECRRM), Cairo, Egypt
| | - Yara N Laboud
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
| | - Hamdi M Hassaneen
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
| | - Fatma M Saleh
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
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3
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Vlocskó RB, Xie G, Török B. Green Synthesis of Aromatic Nitrogen-Containing Heterocycles by Catalytic and Non-Traditional Activation Methods. Molecules 2023; 28:molecules28104153. [PMID: 37241894 DOI: 10.3390/molecules28104153] [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: 04/04/2023] [Revised: 05/10/2023] [Accepted: 05/11/2023] [Indexed: 05/28/2023] Open
Abstract
Recent advances in the environmentally benign synthesis of aromatic N-heterocycles are reviewed, focusing primarily on the application of catalytic methods and non-traditional activation. This account features two main parts: the preparation of single ring N-heterocycles, and their condensed analogs. Both groups include compounds with one, two and more N-atoms. Due to the large number of protocols, this account focuses on providing representative examples to feature the available methods.
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Affiliation(s)
- R Bernadett Vlocskó
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Blvd., Boston, MA 02125, USA
| | - Guoshu Xie
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Blvd., Boston, MA 02125, USA
| | - Béla Török
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Blvd., Boston, MA 02125, USA
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4
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Doraghi F, Mohaghegh F, Qareaghaj OH, Larijani B, Mahdavi M. Synthesis of N-, O-, and S-heterocycles from aryl/alkyl alkynyl aldehydes. RSC Adv 2023; 13:13947-13970. [PMID: 37181524 PMCID: PMC10167737 DOI: 10.1039/d3ra01778h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Accepted: 04/26/2023] [Indexed: 05/16/2023] Open
Abstract
In the field of heterocyclic synthesis, alkynyl aldehydes serve as privileged reagents for cyclization reactions with other organic compounds to construct a broad spectrum of N-, O-, and S-heterocycles. Due to the immense application of heterocyclic molecules in pharmaceuticals, natural products, and material chemistry, the synthesis of such scaffolds has received wide attention. The transformations occurred under metal-catalyzed, metal-free-promoted, and visible-light-mediated systems. The present review article highlights the progress made in this field over the past two decades.
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Affiliation(s)
- Fatemeh Doraghi
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences Tehran Iran
| | - Farid Mohaghegh
- School of Chemistry, College of Science, University of Tehran Tehran Iran
| | | | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences Tehran Iran
| | - Mohammad Mahdavi
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences Tehran Iran
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5
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Priyanka, Rani P, Kiran, Sindhu J. Indolizine: A Promising Framework for Developing a Diverse Array of C−H Functionalized Hybrids. ChemistrySelect 2023. [DOI: 10.1002/slct.202203531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Priyanka
- Department of Chemistry, COBS&H CCSHAU Hisar 125004 India
| | - Payal Rani
- Department of Chemistry, COBS&H CCSHAU Hisar 125004 India
| | - Kiran
- Department of Chemistry, COBS&H CCSHAU Hisar 125004 India
| | - Jayant Sindhu
- Department of Chemistry, COBS&H CCSHAU Hisar 125004 India
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6
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Li A, Zhao J, Zhang C, Jiang Q, Zhu B, Cao H. Lewis Acid-Promoted Three-Component Cyclization for the Construction of Functionalized Oxazoles. J Org Chem 2023; 88:27-38. [PMID: 36563287 DOI: 10.1021/acs.joc.2c01432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A simple and efficient synthetic strategy from amides, ynals, and sodium sulfinates via a Lewis acid-promoted three-component reaction has been reported. Thus, a broad range of various aryl (not alkyl)-substituted oxazoles could be synthesized via the formation of C-N, C-O, and C-S bonds in a one-pot process. In addition, this reaction possesses other unique advantages, such as transition metal-free catalysis, high step economy, good functional group tolerance, and good regioselectivity.
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Affiliation(s)
- Anquan Li
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
| | - Jun Zhao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
| | - Chen Zhang
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
| | - Qiuxia Jiang
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
| | - Baofu Zhu
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
| | - Hua Cao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
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7
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Synthesis of Diversified Pyrazolo[3,4-b]pyridine Frameworks from 5-Aminopyrazoles and Alkynyl Aldehydes via Switchable C≡C Bond Activation Approaches. Molecules 2022; 27:molecules27196381. [PMID: 36234926 PMCID: PMC9571537 DOI: 10.3390/molecules27196381] [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: 09/03/2022] [Revised: 09/24/2022] [Accepted: 09/25/2022] [Indexed: 11/17/2022] Open
Abstract
A cascade 6-endo-dig cyclization reaction was developed for the switchable synthesis of halogen and non-halogen-functionalized pyrazolo[3,4-b]pyridines from 5-aminopyrazoles and alkynyl aldehydes via C≡C bond activation with silver, iodine, or NBS. In addition to its wide substrate scope, the reaction showed good functional group tolerance as well as excellent regional selectivity. This new protocol manipulated three natural products, and the arylation, alkynylation, alkenylation, and selenization of iodine-functionalized products. These reactions demonstrated the potential applications of this new method.
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8
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qin Z, Ma R, Ying S, Li F, Ma Y. Synthesis of substituted pyrimido[1,2‐b]indazoles through [3+2+1] cyclization of 3‐aminoindazoles, ketones and N,N‐dimethylaminoethanol as one carbon synthon. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200707] [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)
| | | | | | - Fanzhu Li
- Zhejiang Chinese Medical University CHINA
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9
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Ni Q, Xu F, Song X. Diastereoselective and E/Z-Selective Synthesis of Functionalized Quinolizine Scaffolds via the Dearomative Annulation of 2-Pyridylacetates with Nitroenynes. J Org Chem 2022; 87:9507-9517. [PMID: 35801688 DOI: 10.1021/acs.joc.2c00448] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An organocatalytic Michael/aza-Michael cascade reaction was developed to build the functionalized quinolizine scaffolds in 60-82% yields, excellent diastereoselectivities, and E/Z selectivities. This protocol involves the [3 + 3] annulations of 2-pyridylacetates with nitroenynes through the dearomative strategy in the presence of an organic base under mild conditions. The versatile late-stage derivatizations further demonstrated the synthetic utility of this methodology.
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Affiliation(s)
- Qijian Ni
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, P. R. China
| | - Fangfang Xu
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, P. R. China
| | - Xiaoxiao Song
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, P. R. China
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10
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Shen YB, Zhao JQ, Ge ZZ, Wang ZH, You Y, Zhou MQ, Yuan WC. HFIP-promoted intramolecular dearomative annulation of pyridylacetate derivatives to access functionalized 3,4-dihydroquinolizin-2-ones. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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11
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Escalante CH, Carmona-Hernández FA, Hernández-López A, Martínez-Mora EI, Delgado F, Tamariz J. Cascade synthesis of indolizines and pyrrolo[1,2- a]pyrazines from 2-formyl-1-propargylpyrroles. Org Biomol Chem 2022; 20:396-409. [PMID: 34904608 DOI: 10.1039/d1ob01839f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A straightforward synthesis of indolizines and pyrrolo[1,2-a]pyrazines was performed through a cascade condensation/cyclization/aromatization reaction of substituted 2-formyl-N-propargylpyrroles with active methylene compounds such as nitromethane, alkyl malonates, methyl cyanoacetate and malononitrile. Under basic conditions, the reaction proceeded satisfactorily to provide the corresponding 6,7-disubstituted indolizines. The condensation of the pyrrolic analogues with ammonium acetate gave rise to pyrrolo[1,2-a]pyrazines in high yields. N-Allenyl-2-formylpyrroles behaved as more reactive substrates than 2-formyl-N-propargylpyrroles, furnishing the expected indolizines in higher yields. Hence, an allenyl-containing intermediate was probably generated as the reactive species in the reaction mechanism of some N-propargyl pyrroles prior to the cyclization reaction.
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Affiliation(s)
- Carlos H Escalante
- Departamento de Química Orgánica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala S/N, 11340 Mexico City, Mexico.
| | - Fernando A Carmona-Hernández
- Departamento de Química Orgánica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala S/N, 11340 Mexico City, Mexico.
| | - Alberto Hernández-López
- Departamento de Química Orgánica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala S/N, 11340 Mexico City, Mexico.
| | - Eder I Martínez-Mora
- Departamento de Química Orgánica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala S/N, 11340 Mexico City, Mexico. .,Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Autónoma de Coahuila, Blvd. Venustiano Carranza e Ing. J. Cárdenas S/N, 25280 Saltillo, Coah., Mexico
| | - Francisco Delgado
- Departamento de Química Orgánica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala S/N, 11340 Mexico City, Mexico.
| | - Joaquín Tamariz
- Departamento de Química Orgánica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala S/N, 11340 Mexico City, Mexico.
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12
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Wu Q, Wang S, Li J, Li W, Chen M, Huang C. Cascade Reaction by I
2
/Base‐Promoted Synthesis of Chromeno‐[3,4‐
c
]pyrrol‐4(2
H
)‐ones from 2‐Hydroxychalcones and
β‐
Enamine Esters. ChemistrySelect 2022. [DOI: 10.1002/slct.202104106] [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)
- Qin Wu
- Biobased Materials School of Chemistry and Environment Yunnan Minzu University Kunming 650500 P. R. China
| | - Shuang Wang
- Biobased Materials School of Chemistry and Environment Yunnan Minzu University Kunming 650500 P. R. China
| | - Jingpeng Li
- Biobased Materials School of Chemistry and Environment Yunnan Minzu University Kunming 650500 P. R. China
| | - Weiqiang Li
- Biobased Materials School of Chemistry and Environment Yunnan Minzu University Kunming 650500 P. R. China
| | - Minghong Chen
- Biobased Materials School of Chemistry and Environment Yunnan Minzu University Kunming 650500 P. R. China
| | - Chao Huang
- Biobased Materials School of Chemistry and Environment Yunnan Minzu University Kunming 650500 P. R. China
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13
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Shen YB, Zhao JQ, Wang ZH, You Y, Zhou MQ, Yuan WC. DBU-catalyzed dearomative annulation of 2-pyridylacetates with α,β-unsaturated pyrazolamides for the synthesis of multisubstituted 2,3-dihydro-4H-quinolizin-4-ones. Org Chem Front 2022. [DOI: 10.1039/d1qo01414e] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
DBU-catalyzed dearomative [3 + 3] annulation of 2-pyridylacetates and α,β-unsaturated pyrazolamides for the synthesis of multisubstituted 2,3-dihydro-4H-quinolizin-4-ones was developed.
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Affiliation(s)
- Yao-Bin Shen
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, 610041, China
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jian-Qiang Zhao
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Zhen-Hua Wang
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Yong You
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Ming-Qiang Zhou
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, 610041, China
| | - Wei-Cheng Yuan
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, 610041, China
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
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14
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Chang Z, Zhang S, Wang Y, Xiong HY, Zhang G. Catalyst-free synthesis of quinoline-enols through coupling between heterocyclic N-oxides and CF 3-ynones under mild conditions. Org Chem Front 2022. [DOI: 10.1039/d2qo01260j] [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
The coupling between heterocyclic N-oxides and CF3-ynones has been demonstrated via the formal C–H and C–C bond cleavage under catalyst-free and mild conditions.
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Affiliation(s)
- Zhenbang Chang
- College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, P.R. China
| | - Saisai Zhang
- College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, P.R. China
| | - Yinpeng Wang
- College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, P.R. China
| | - Heng-Ying Xiong
- College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, P.R. China
| | - Guangwu Zhang
- College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, P.R. China
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15
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Zhang XJ, Wang Z, Zhang H, Gao JJ, Yang KR, Fan WY, Wu RX, Feng ML, Zhu W, Zhu YP. Iodine-Mediated Domino Cyclization for One-Pot Synthesis of Indolizine-Fused Chromones via Metal-Free sp 3 C-H Functionalization. J Org Chem 2021; 87:835-845. [PMID: 34962788 DOI: 10.1021/acs.joc.1c02508] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
An efficient method for the synthesis of new indolizine-fused chromones has been accomplished from ethyl (E)-3-(2-acetylphenoxy)acrylates and pyridines in a "one-pot" manner. Facile operation in open-air, metal-free, and mild conditions renders this protocol particularly practical and attractive. Moreover, this method can simultaneously construct two molecular fragments of chromone and indolizine. Scale-up experiment and the construction of natural products further prove the practicability of this strategy.
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Affiliation(s)
- Xiang-Jin Zhang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Shandong, Yantai 264005, PR China
| | - Zhuo Wang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Shandong, Yantai 264005, PR China
| | - Han Zhang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Shandong, Yantai 264005, PR China
| | - Jing-Jing Gao
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Shandong, Yantai 264005, PR China
| | - Kai-Rui Yang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Shandong, Yantai 264005, PR China
| | - Wei-Yu Fan
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Shandong, Yantai 264005, PR China
| | - Rui-Xue Wu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Shandong, Yantai 264005, PR China
| | - Meng-Lin Feng
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Shandong, Yantai 264005, PR China
| | - Wei Zhu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Shandong, Yantai 264005, PR China
| | - Yan-Ping Zhu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Shandong, Yantai 264005, PR China
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16
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Chen Y, Shatskiy A, Liu JQ, Kärkäs MD, Wang XS. Silver-Promoted (4 + 1) Annulation of Isocyanoacetates with Alkylpyridinium Salts: Divergent Regioselective Synthesis of 1,2-Disubstituted Indolizines. Org Lett 2021; 23:7555-7560. [PMID: 34524832 DOI: 10.1021/acs.orglett.1c02754] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
An unprecedented silver-promoted regioselective (4 + 1) annulation of isocyanoacetates with pyridinium salts is reported. The established protocol provides controlled, facile, and modular access to a range of synthetically useful N-fused heterocyclic scaffolds containing indolizines, pyrrolo[1,2-a]quinolines, pyrrolo[2,1-a]isoquinolines, and 1H-imidazo[4,5-a]indolizin-2(3H)-ones. A mechanistic pathway involving nucleophilic addition/protonation/elimination/cycloisomerization is proposed.
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Affiliation(s)
- Yan Chen
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Andrey Shatskiy
- Department of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Jian-Quan Liu
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China.,Department of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Markus D Kärkäs
- Department of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Xiang-Shan Wang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
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17
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Wang Y, Zhang Z, Deng L, Lao T, Su Z, Yu Y, Cao H. Mechanochemical Synthesis of 1,2-Diketoindolizine Derivatives from Indolizines and Epoxides Using Piezoelectric Materials. Org Lett 2021; 23:7171-7176. [PMID: 34459619 DOI: 10.1021/acs.orglett.1c02575] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A simple and efficient mechanochemical-induced approach for the synthesis of 1,2-diketoindolizine derivatives has been developed. BaTiO3 was used as the piezoelectric material in this transformation. This method features no usage of solvent, simple experimental operation, scalable potential, and high conversion efficiency, which make it attractive and practical.
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Affiliation(s)
- Yumei Wang
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Ziwu Zhang
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Lichan Deng
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Tianfeng Lao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Zhengquan Su
- Guangdong Engineering Research Center of Natural Products and New Drugs, Guangdong Provincial University Engineering Technology Research Center of Natural Products and Drugs, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Yue Yu
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China.,Guangdong Pharmaceutical University-University of Hong Kong Joint Biomedical Innovation Platform, Zhongshan 528437, China
| | - Hua Cao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China
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18
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Schäfer C, Cho H, Vlocskó B, Xie G, Török B. Recent Advances in the Green Synthesis of Heterocycles: From Building Blocks to Biologically Active Compounds. Curr Org Synth 2021; 19:426-462. [PMID: 34515007 DOI: 10.2174/1570179418666210910110205] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 07/06/2021] [Accepted: 07/22/2021] [Indexed: 11/22/2022]
Abstract
Recent advances in the environmentally benign synthesis of common heterocycles are described. This account features three main parts; the preparation of non-aromatic heterocycles, one-ring aromatic heterocycles and their condensed analogs. Due to the great variety of and high interest in these compounds, this work focuses on providing representative examples of the preparation of the target compounds.
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Affiliation(s)
- Christian Schäfer
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Blvd. Boston, MA 02125. United States
| | - Hyejin Cho
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Blvd. Boston, MA 02125. United States
| | - Bernadett Vlocskó
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Blvd. Boston, MA 02125. United States
| | - Guoshu Xie
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Blvd. Boston, MA 02125. United States
| | - Béla Török
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Blvd. Boston, MA 02125. United States
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19
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Liu X, Zhou J, Lin J, Zhang Z, Wu S, He Q, Cao H. Controllable Site-Selective Construction of 2- and 4-Substituted Pyrimido[1,2- b]indazole from 3-Aminoindazoles and Ynals. J Org Chem 2021; 86:9107-9116. [PMID: 34132097 DOI: 10.1021/acs.joc.1c01094] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A straightforward and novel controllable site-selective construction of 2- and 4-substituted pyrimido[1,2-b]indazole from 3-aminoindazoles and ynals has been developed. The high regioselectivity of this reaction could be easily switched by converting different catalytic systems. In this way, a series of 2- and 4-substituted pyrimido[1,2-b]indazole derivatives were obtained in moderate to good yields. In addition, the photophysical properties of compound 3a prepared by the present method were discussed.
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Affiliation(s)
- Xiang Liu
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, 528458, P.R. China
| | - Jinlei Zhou
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, 528458, P.R. China
| | - Jiatong Lin
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, 528458, P.R. China
| | - Zemin Zhang
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, 528458, P.R. China
| | - Suying Wu
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, 528458, P.R. China
| | - Qiuxing He
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, 528458, P.R. China
| | - Hua Cao
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, 528458, P.R. China
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20
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Hu Y, Nan J, Gong X, Zhang J, Yin J, Ma Y. Zinc-catalyzed C-H alkenylation of quinoline N-oxides with ynones: a new strategy towards quinoline-enol scaffolds. Chem Commun (Camb) 2021; 57:4930-4933. [PMID: 33870963 DOI: 10.1039/d1cc00245g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A zinc-catalyzed C-H alkenylation of quinoline N-oxides with ynones has been developed to rapidly assemble a broad collection of valuable quinoline-enol organic architectures. Uncommonly, this novel reaction involves C-H functionalization, and N-O, C-C and C[triple bond, length as m-dash]C bond cleavage in one operation, and leads exclusively to the formation of an enol rather than a keto product. Application of the enols generated was highlighted by further derivative transformation and preparation of a series of "BODIPY" analogues with high quantum yields (up to 86%).
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Affiliation(s)
- Yan Hu
- Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China.
| | - Jiang Nan
- Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China.
| | - Xue Gong
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Jiawen Zhang
- Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China.
| | - Jiacheng Yin
- Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China.
| | - Yangmin Ma
- Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China.
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21
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Yang L, Zhang Y, Deng J, Ma A, Zhang X, Zhang S, Peng J. Oxidative [3+2] Annulation of Pyridinium Salts with
gem
‐Difluoroalkenes: Synthesis of 2‐Fluoroindolizines. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100253] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Li–Miao Yang
- School of Biotechnology and Health Sciences Wuyi University Jiangmen, Guangdong 529020 P. R. China
| | - You‐Ya Zhang
- School of Biotechnology and Health Sciences Wuyi University Jiangmen, Guangdong 529020 P. R. China
| | - Jing‐Tong Deng
- School of Biotechnology and Health Sciences Wuyi University Jiangmen, Guangdong 529020 P. R. China
| | - Ai‐Jun Ma
- School of Biotechnology and Health Sciences Wuyi University Jiangmen, Guangdong 529020 P. R. China
| | - Xiang‐Zhi Zhang
- School of Biotechnology and Health Sciences Wuyi University Jiangmen, Guangdong 529020 P. R. China
| | - Shu‐Yu Zhang
- School of Biotechnology and Health Sciences Wuyi University Jiangmen, Guangdong 529020 P. R. China
- Shanghai Key Laboratory for Molecular Engineer of Chiral Drugs & School of Chemistry and Chemical Engineering Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Jin‐Bao Peng
- School of Biotechnology and Health Sciences Wuyi University Jiangmen, Guangdong 529020 P. R. China
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22
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Xu Z, Xian N, Chen H, Deng G, Huang H. Cu‐Catalyzed
Cascade Cyclization of Ketoxime Acetates and Alkynals Enabling Synthesis of Acylpyrroles. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202000660] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Zhenhua Xu
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University Xiangtan Hunan 411105 China
| | - Ning Xian
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University Xiangtan Hunan 411105 China
| | - Hongbiao Chen
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University Xiangtan Hunan 411105 China
| | - Guo‐Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University Xiangtan Hunan 411105 China
| | - Huawen Huang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University Xiangtan Hunan 411105 China
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23
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Roy SA, Zgheib J, Zhou C, Arndtsen BA. Palladium catalyzed synthesis of indolizines via the carbonylative coupling of bromopyridines, imines and alkynes. Chem Sci 2020; 12:2251-2256. [PMID: 34163991 PMCID: PMC8179343 DOI: 10.1039/d0sc03977b] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
We report herein the development of a palladium-catalyzed, multicomponent synthesis of indolizines. The reaction proceeds via the carbonylative formation of a high energy, mesoionic pyridine-based 1,3-dipole, which can undergo spontaneous cycloaddition with alkynes. Overall, this provides a route to prepare indolizines in a modular fashion from combinations of commercially available or easily generated reagents: 2-bromopyridines, imines and alkynes. A palladium catalyzed, multicomponent synthesis of indolizines is described via the carbon monoxide driven generation of reactive, pyridine-based 1,3-dipoles.![]()
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Affiliation(s)
- Sébastien A Roy
- Department of Chemistry, McGill University 801 Sherbrooke Street W. Montreal QC H3A 0B8 Canada
| | - José Zgheib
- Department of Chemistry, McGill University 801 Sherbrooke Street W. Montreal QC H3A 0B8 Canada
| | - Cuihan Zhou
- Department of Chemistry, McGill University 801 Sherbrooke Street W. Montreal QC H3A 0B8 Canada
| | - Bruce A Arndtsen
- Department of Chemistry, McGill University 801 Sherbrooke Street W. Montreal QC H3A 0B8 Canada
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24
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Schifferer L, García Mancheño O. Metal‐ and Solvent‐Free, One‐Pot Synthesis of 3‐Unsubstituted Benzoindolizines. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001245] [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)
- Lukas Schifferer
- Organic Chemistry Institute Münster University Corrensstraße 36 48149 Münster Germany
| | - Olga García Mancheño
- Organic Chemistry Institute Münster University Corrensstraße 36 48149 Münster Germany
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25
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Zhang Y, Yu Y, Liang BB, Pei YY, Liu X, Yao HG, Cao H. Synthesis of Pyrrolo[2,1,5- cd]indolizine Rings via Visible-Light-Induced Intermolecular [3+2] Cycloaddition of Indolizines and Alkynes. J Org Chem 2020; 85:10719-10727. [PMID: 32664733 DOI: 10.1021/acs.joc.0c01253] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A range of indolizine smoothly underwent visible-light-induced intermolecular [3+2] annulations with internal alkynes to afford pyrrolo[2,1,5-cd]indolizine in good to excellent yields with high regioselectivity. Through this cascade reaction, a series of fluoroactive fused indolizines with a large π-system were conveniently synthesized. The usage of visible light as energy source with air as a stoichiometric oxidant under simple conditions makes this process attractive and practical.
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Affiliation(s)
- Yu Zhang
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
| | - Yue Yu
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
| | - Bing-Bing Liang
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
| | - Yong-Yan Pei
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
| | - Xiang Liu
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
| | - Hua-Gang Yao
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
| | - Hua Cao
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
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26
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Wang Y, Liu X, Zhu B, Guo P, Pei Y, He Q, Cao H. Cu(I)-Catalyzed Three-Component Cyclization for the Construction of Functionalized Thiazoles. J Org Chem 2020; 85:10118-10124. [PMID: 32610902 DOI: 10.1021/acs.joc.0c01381] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A novel and straightforward strategy for the synthesis of functionalized thiazoles from thioamides, ynals, and alcohols via a copper(I)-catalyzed three-component reaction has been described. Through the formation of new C-S, C-N, and C-O bonds in one pot, it is easy to produce various valuable thiazoles fixed with aryl or heteroaryl groups. In addition, the reaction also exhibits other unique advantages, such as high step economics, good functional group tolerance, and good regioselectivity.
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Affiliation(s)
- Yajun Wang
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. of China
| | - Xiang Liu
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. of China
| | - Baofu Zhu
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. of China
| | - Pengfeng Guo
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. of China
| | - Yongyan Pei
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. of China
| | - Qiuxing He
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. of China
| | - Hua Cao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. of China
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27
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Liu X, Wang Y, Zhou J, Yu Y, Cao H. Triflic Acid-Catalyzed Cycloisomerization of 1,6-Enynes: Facile Access to Carbo- and Azaheterocycles. J Org Chem 2020; 85:2406-2414. [PMID: 31870155 DOI: 10.1021/acs.joc.9b03112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A new and efficient strategy for enynes cyclization catalyzed by triflic acid has been described. Various valuable carbocycle-fused and heterocycle-fused ketones were easily accessed by the formation of new C-C and C-O bond under benign reaction conditions. This protocol also provides another opportunity to construct polycyclic single-nitrogen ketones via a cation-induced cascade cyclization of polyenynes. Furthermore, antiviral bioassays revealed that a few compounds exhibited good antiviral activity against tobacco mosaic virus at a concentration of 200 μg mL-1.
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Affiliation(s)
- Xiang Liu
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center , Guangdong Pharmaceutical University , Zhongshan 528458 , P. R. of China
| | - Yuhan Wang
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center , Guangdong Pharmaceutical University , Zhongshan 528458 , P. R. of China
| | - Jinlei Zhou
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center , Guangdong Pharmaceutical University , Zhongshan 528458 , P. R. of China
| | - Yue Yu
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center , Guangdong Pharmaceutical University , Zhongshan 528458 , P. R. of China
| | - Hua Cao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center , Guangdong Pharmaceutical University , Zhongshan 528458 , P. R. of China
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28
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Arupula SK, Qureshi AA, Swamy KCK. Lewis Base-Switched [3 + 3] and [4 + 2] Annulation Reactions of δ-Acetoxy Allenoates with Cyclic N-Sulfonyl Imines: Divergent Synthesis of Functionalized α-Pyridyl Acetates and Teraryl Scaffolds. J Org Chem 2020; 85:4130-4144. [DOI: 10.1021/acs.joc.9b03281] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Sanjeeva K. Arupula
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, Telangana, India
| | - Asif Ali Qureshi
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, Telangana, India
| | - K. C. Kumara Swamy
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, Telangana, India
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29
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Zhang Q, Ablajan K, Wang B, Ma H, Guo Z. One-Pot Synthesis of Indolizines Using TBHP as the Methylene Source Under Metal-Free Condition. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901803] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Qianwei Zhang
- Key Laboratory of Oil & Gas Fine Chemicals; Ministry of Education & Xinjiang Uyghur Autonomous Region; College of Chemistry and Chemical Engineering; Xinjiang University; 830046 Urumqi PR China
| | - Keyume Ablajan
- Key Laboratory of Oil & Gas Fine Chemicals; Ministry of Education & Xinjiang Uyghur Autonomous Region; College of Chemistry and Chemical Engineering; Xinjiang University; 830046 Urumqi PR China
| | - Bin Wang
- Key Laboratory of Oil & Gas Fine Chemicals; Ministry of Education & Xinjiang Uyghur Autonomous Region; College of Chemistry and Chemical Engineering; Xinjiang University; 830046 Urumqi PR China
| | - Huifang Ma
- Key Laboratory of Oil & Gas Fine Chemicals; Ministry of Education & Xinjiang Uyghur Autonomous Region; College of Chemistry and Chemical Engineering; Xinjiang University; 830046 Urumqi PR China
| | - Zhongqi Guo
- Key Laboratory of Oil & Gas Fine Chemicals; Ministry of Education & Xinjiang Uyghur Autonomous Region; College of Chemistry and Chemical Engineering; Xinjiang University; 830046 Urumqi PR China
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30
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Dong S, Huang J, Sha H, Qiu L, Hu W, Xu X. Copper-catalyzed formal [1 + 2 + 2]-annulation of alkyne-tethered diazoacetates and pyridines: access to polycyclic indolizines. Org Biomol Chem 2020; 18:1926-1932. [DOI: 10.1039/d0ob00222d] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A copper-catalyzed formal [1 + 2 + 2]-annulation of alkyne-tethered diazo compounds with pyridines, which affords polycyclic fused indolizine derivatives with broad substrate generality, has been reported.
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Affiliation(s)
- Shanliang Dong
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Jingjing Huang
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- China
| | - Hongkai Sha
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- China
| | - Lihua Qiu
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Wenhao Hu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- China
| | - Xinfang Xu
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
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31
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Li J, Liu X, Deng J, Huang Y, Pan Z, Yu Y, Cao H. Electrochemical diselenylation of indolizines via intermolecular C-Se formation with 2-methylpyridines, α-bromoketones and diselenides. Chem Commun (Camb) 2019; 56:735-738. [PMID: 31840710 DOI: 10.1039/c9cc08784b] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
An efficient electrochemical system for the construction of diselenytlated indolizines from available pyridines, ketones and diselenides under undivided electrolytic conditions was developed. No external oxidants and transition-metal catalysts are needed for achieving this three-component tandem reaction realizing C-C, C-N and C-Se bond formations.
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Affiliation(s)
- Junxuan Li
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China.
| | - Xiang Liu
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China.
| | - Jiadi Deng
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China.
| | - Yingshan Huang
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China.
| | - Zihao Pan
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China.
| | - Yue Yu
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China.
| | - Hua Cao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China.
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32
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Li J, Yang D, Wang H, Zhu B, Cao H. Zn-Catalyzed [3+2]-Annulation Strategy: Straightforward Access to Aminoalkyl Indolizines. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901102] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Junxuan Li
- School of Chemistry and Chemical Engineering; Guangdong Pharmaceutical University; 528458 Zhongshan P.R. of China
| | - Daji Yang
- School of Chemistry and Chemical Engineering; Guangdong Pharmaceutical University; 528458 Zhongshan P.R. of China
| | - Hua Wang
- Institute for Plant Protection and Soil Science; Hubei Academy of Agricultural Sciences; Nanhu Road 6 430064 Wuhan China
| | - Baofu Zhu
- School of Chemistry and Chemical Engineering; Guangdong Pharmaceutical University; 528458 Zhongshan P.R. of China
| | - Hua Cao
- School of Chemistry and Chemical Engineering; Guangdong Pharmaceutical University; 528458 Zhongshan P.R. of China
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33
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Chen Z, Liang P, Xu F, Deng Z, Long L, Luo G, Ye M. Metal-Free Aminothiation of Alkynes: Three-Component Tandem Annulation toward Indolizine Thiones from 2-Alkylpyridines, Ynals, and Elemental Sulfur. J Org Chem 2019; 84:12639-12647. [PMID: 31545050 DOI: 10.1021/acs.joc.9b01802] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A metal-free three-component annulation reaction for the synthesis of indolizine thiones via tandem C-C/C-N/C-S bond formation was developed. Various 2-alkylpyridines with aromatic ynals and elemental sulfur proceeded smoothly under catalyst-free conditions, and the desired products were obtained in moderate to excellent yields.
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Affiliation(s)
- Zhengwang Chen
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou 341000 , P. R. China
| | - Pei Liang
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou 341000 , P. R. China
| | - Fan Xu
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou 341000 , P. R. China
| | - Zhen Deng
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou 341000 , P. R. China
| | - Lipeng Long
- 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
| | - Min Ye
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou 341000 , P. R. China
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34
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Paluru DK, Mahesh S, Ahmad F, Vijaya Anand R. A Cascade Synthesis of Hetero‐arylated Triarylmethanes Through a Double 5‐
endo
‐dig Cyclization Sequence. Chem Asian J 2019; 14:4688-4695. [DOI: 10.1002/asia.201900960] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 09/03/2019] [Indexed: 12/17/2022]
Affiliation(s)
- Dilip K. Paluru
- Department of Chemical SciencesIndian Institute of Science Education and Research (IISER) Mohali Sector 81, Knowledge City, S. A. S. Nagar, Manauli (PO) Punjab- 140306 India
| | - Sriram Mahesh
- Department of Chemical SciencesIndian Institute of Science Education and Research (IISER) Mohali Sector 81, Knowledge City, S. A. S. Nagar, Manauli (PO) Punjab- 140306 India
| | - Feroz Ahmad
- Department of Chemical SciencesIndian Institute of Science Education and Research (IISER) Mohali Sector 81, Knowledge City, S. A. S. Nagar, Manauli (PO) Punjab- 140306 India
| | - Ramasamy Vijaya Anand
- Department of Chemical SciencesIndian Institute of Science Education and Research (IISER) Mohali Sector 81, Knowledge City, S. A. S. Nagar, Manauli (PO) Punjab- 140306 India
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35
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Liu W, Zhang Y, He J, Yu Y, Yuan J, Ye X, Zhang Z, Xue L, Cao H. Transition-Metal-Free Three-Component Reaction: Additive Controlled Synthesis of Sulfonylated Imidazoles. J Org Chem 2019; 84:11348-11358. [PMID: 31379165 DOI: 10.1021/acs.joc.9b01818] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Two efficient transition-metal-free highly regioselective pathways for constructing sulfonylated imidazoles via three-component reactions of amidines, ynals, and sodium sulfonates have been developed. The generations of different sulfonylated imidazoles were simply controlled by additives. In addition, this method features environmental friendliness, good functional group tolerance, and high atom economy, which makes it practical.
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Affiliation(s)
- Wei Liu
- School of Chemistry and Chemical Engineering , Guangdong Pharmaceutical University , Zhongshan , 528458 , P.R. of China
| | - Yu Zhang
- School of Chemistry and Chemical Engineering , Guangdong Pharmaceutical University , Zhongshan , 528458 , P.R. of China
| | - Jiaming He
- School of Chemistry and Chemical Engineering , Guangdong Pharmaceutical University , Zhongshan , 528458 , P.R. of China
| | - Yue Yu
- School of Chemistry and Chemical Engineering , Guangdong Pharmaceutical University , Zhongshan , 528458 , P.R. of China
| | - Jiajun Yuan
- School of Chemistry and Chemical Engineering , Guangdong Pharmaceutical University , Zhongshan , 528458 , P.R. of China
| | - Xiaoyi Ye
- School of Chemistry and Chemical Engineering , Guangdong Pharmaceutical University , Zhongshan , 528458 , P.R. of China
| | - Ziwu Zhang
- School of Chemistry and Chemical Engineering , Guangdong Pharmaceutical University , Zhongshan , 528458 , P.R. of China
| | - Liang Xue
- School of Chemistry and Chemical Engineering , Guangdong Pharmaceutical University , Zhongshan , 528458 , P.R. of China
| | - Hua Cao
- School of Chemistry and Chemical Engineering , Guangdong Pharmaceutical University , Zhongshan , 528458 , P.R. of China
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36
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Liu Y, Shao E, Zhang Z, Yang D, Li G, Cao H, Huang H. A Novel Indolizine Derivative Induces Apoptosis Through the Mitochondria p53 Pathway in HepG2 Cells. Front Pharmacol 2019; 10:762. [PMID: 31354481 PMCID: PMC6635656 DOI: 10.3389/fphar.2019.00762] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 06/12/2019] [Indexed: 12/20/2022] Open
Abstract
Indolizine derivatives are a class of compounds with excellent biological activity. In this study, a series of indolizine derivatives, compound 1 (C1), compound 2 (C2), compound 3 (C3), and compound 4 (C4), were synthesized. 3-(4,5-dimethylthiazole)-2,5-diphenyltetraazolium bromide (MTT) assay was used to evaluate their cytotoxicity against HepG2 (p53-wild), A549, and HeLa cell lines. HepG2 cells apoptosis induced by C3 was determined using Hoechst staining and acridine orange/ethidium bromide staining. Cells’ apoptotic ratio was measured by Annexin V–FITC/PI double staining. Changes in mitochondrial membrane potential and intracellular reactive oxygen species (ROS) in HepG2 cells after C3 treatment were determined. Immunofluorescence staining and Western blot analysis were carried out to detect p53 levels and analyze the apoptosis-associated proteins, respectively. Moreover, the cytotoxic activity of C3 was examined in two other hepatocellular carcinoma (HCC) cell lines with different p53 status including Huh-7 cells (p53-mutant) and Hep3B cells (p53-null). The results indicated that C3 showed stronger inhibition towards HepG2 cells than other cell lines. Fluorescent staining and flow cytometry analysis confirmed that C3 induced apoptosis of HepG2 cells. C3 could also increase intracellular ROS and cause a decrease in the mitochondrial membrane potential. C3 promoted p53 activation and increased p53 accumulation in nuclei. The expression of p53 and Bax was increased with the down-regulation of Bcl-2, which promoted the release of cytochrome c and caspase-3 activation. Collectively, the study demonstrated that C3 caused HepG2 cell apoptosis via the mitochondria p53 pathway. These results inspired us to further develop indolizine derivatives as potential potent inhibitors against liver cancer.
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Affiliation(s)
- Yushuang Liu
- School of Biosciences & Biopharmaceutics and Center for Bioresources & Drug Discovery, Guangdong Pharmaceutical University, Guangzhou, China.,School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, China
| | - Enxian Shao
- School of Biosciences & Biopharmaceutics and Center for Bioresources & Drug Discovery, Guangdong Pharmaceutical University, Guangzhou, China.,School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, China
| | - Zhiyang Zhang
- School of Biosciences & Biopharmaceutics and Center for Bioresources & Drug Discovery, Guangdong Pharmaceutical University, Guangzhou, China.,School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, China
| | - Daji Yang
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, China
| | - Guanting Li
- School of Biosciences & Biopharmaceutics and Center for Bioresources & Drug Discovery, Guangdong Pharmaceutical University, Guangzhou, China.,School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, China
| | - Hua Cao
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, China
| | - Hongliang Huang
- School of Biosciences & Biopharmaceutics and Center for Bioresources & Drug Discovery, Guangdong Pharmaceutical University, Guangzhou, China.,Guangzhou Key Laboratory of Construction and Application of New Drug Screening Model Systems, Guangdong Pharmaceutical University, Guangzhou, China
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37
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Metal-free synthesis of novel indolizines from chromones and pyridinium salts via 1,3-dipolar cycloaddition, ring-opening and aromatization. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.04.056] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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38
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Xu J, Yang H, Cai H, Bao H, Li W, Zhang P. Transition-Metal and Solvent-Free Oxidative C–H Fluoroalkoxylation of Quinoxalinones with Fluoroalkyl Alcohols. Org Lett 2019; 21:4698-4702. [DOI: 10.1021/acs.orglett.9b01578] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Jun Xu
- College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
| | - Huiyong Yang
- College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
| | - Heng Cai
- College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
| | - Hanyang Bao
- College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
| | - Wanmei Li
- College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
| | - Pengfei Zhang
- College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
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39
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Lu M, Shi F, Ji M, Kan Y, Hu H. Palladium Catalyzed C−H Olefination of Indolizines at the 1‐Position with Molecular Oxygen as the Terminal Oxidant. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900267] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mingzhu Lu
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials School of Chemistry and Chemical EngineeringHuaiyin Normal University Huaian 223300 P. R. China
| | - Fei Shi
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials School of Chemistry and Chemical EngineeringHuaiyin Normal University Huaian 223300 P. R. China
| | - Meishan Ji
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials School of Chemistry and Chemical EngineeringHuaiyin Normal University Huaian 223300 P. R. China
| | - Yuhe Kan
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials School of Chemistry and Chemical EngineeringHuaiyin Normal University Huaian 223300 P. R. China
| | - Huayou Hu
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials School of Chemistry and Chemical EngineeringHuaiyin Normal University Huaian 223300 P. R. China
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40
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Wang C, Yu Y, Su Z, Li X, Cao H. Metal-Free C–B Bond Cleavage: An Acid Catalyzed Three-Component Reaction Construction of Imidazole-Containing Triarylmethanes. Org Lett 2019; 21:4420-4423. [DOI: 10.1021/acs.orglett.9b00969] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Changcheng Wang
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, 528458, P. R. China
| | - Yue Yu
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, 528458, P. R. China
| | - Zhengquan Su
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, 528458, P. R. China
| | - Xuechen Li
- Department of Chemistry, State Key Lab of Synthetic Chemistry, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
| | - Hua Cao
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, 528458, P. R. China
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41
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Kulandai Raj AS, Tan KC, Chen LY, Cheng MJ, Liu RS. Gold-catalyzed bicyclic annulations of 4-methoxy-1,2-dienyl-5-ynes with isoxazoles to form indolizine derivatives via an Au-π-allene intermediate. Chem Sci 2019; 10:6437-6442. [PMID: 31341595 PMCID: PMC6610539 DOI: 10.1039/c9sc00735k] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 05/10/2019] [Indexed: 12/23/2022] Open
Abstract
Gold-catalyzed bicyclic annulations of 4-methoxy-1,2-dienyl-5-ynes with isoxazoles afford indolizine derivatives; the reaction mechanism involves alkyne attack on a gold π-allene to yield a vinyl gold carbene.
Gold-catalyzed bicyclic annulations of 4-methoxy-1,2-dienyl-5-ynes with isoxazoles afford indolizine derivatives with a structural rearrangement. The mechanism of these new annulations does not involve α-imino gold carbenes generated from gold π-alkyne intermediates. We postulate alkyne attack on gold π-allenes, yielding vinyl gold carbenes. These newly generated carbenes react with isoxazole derivatives to yield Z-3-imino-2-en-1-als, further enabling sequential cyclizations to deliver indolizine derivatives in two distinct classes.
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Affiliation(s)
- Antony Sekar Kulandai Raj
- Frontier Research Centers on Fundamental and Applied Science of Matters , Department of Chemistry , National Tsing-Hua University , Hsinchu , Taiwan , Republic of China .
| | - Kuo-Chen Tan
- Frontier Research Centers on Fundamental and Applied Science of Matters , Department of Chemistry , National Tsing-Hua University , Hsinchu , Taiwan , Republic of China .
| | - Liang-Yu Chen
- Department of Chemistry , National Cheng Kung University , Tainan 701 , Taiwan .
| | - Mu-Jeng Cheng
- Department of Chemistry , National Cheng Kung University , Tainan 701 , Taiwan .
| | - Rai-Shung Liu
- Frontier Research Centers on Fundamental and Applied Science of Matters , Department of Chemistry , National Tsing-Hua University , Hsinchu , Taiwan , Republic of China .
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42
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Yu Y, Yue Z, Ding LG, Zhou Y, Cao H. Mn(OAc)3
-Mediated Regioselective C-H Phosphonylation of Indolizines with H
-Phosphonates. ChemistrySelect 2019. [DOI: 10.1002/slct.201804056] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Yue Yu
- School of Chemistry and Chemical Engineering; Guangdong Pharmaceutical University; Zhongshan 528458 P. R. China
| | - Zhongbao Yue
- Zhongbao Yue; Liu-gang Ding and Yong Zhou; Research and Development Centre, Infinitus (China) Company Ltd.; Guangzhou 510665 P. R. China
| | - Liu-gang Ding
- Zhongbao Yue; Liu-gang Ding and Yong Zhou; Research and Development Centre, Infinitus (China) Company Ltd.; Guangzhou 510665 P. R. China
| | - Yong Zhou
- Zhongbao Yue; Liu-gang Ding and Yong Zhou; Research and Development Centre, Infinitus (China) Company Ltd.; Guangzhou 510665 P. R. China
| | - Hua Cao
- School of Chemistry and Chemical Engineering; Guangdong Pharmaceutical University; Zhongshan 528458 P. R. China
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43
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Chen Z, Liang P, Ma X, Luo H, Xu G, Liu T, Wen X, Zheng J, Ye H. Catalyst-Free Annulation of 2-Pyridylacetates and Ynals with Molecular Oxygen: An Access to 3-Acylated Indolizines. J Org Chem 2019; 84:1630-1639. [PMID: 30608171 DOI: 10.1021/acs.joc.8b02883] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A catalyst and additive-free annulation of 2-pyridylacetates and ynals under molecular oxygen was the first developed, affording 3-acylated indolizines in good to excellent yields. Molecular oxygen was used as the source of the carbonyl oxygen atom in indolizines. This approach was compatible with a wide range of functional groups, and especially it has been successfully extended to unsaturated double bonds and triple bonds, which were difficult to prepare by previous methods in a single step.
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Affiliation(s)
- Zhengwang Chen
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou , 341000 , China.,Hubei Key Laboratory of Processing and Application of Catalytic Materials , Huanggang Normal University , Huanggang , 438000 , China
| | - Pei Liang
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou , 341000 , China
| | - Xiaoyue Ma
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou , 341000 , China
| | - Haiqing Luo
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou , 341000 , China
| | - Guohai Xu
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou , 341000 , China
| | - Tanggao Liu
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou , 341000 , China
| | - Xiaowei Wen
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou , 341000 , China
| | - Jing Zheng
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou , 341000 , China
| | - Hui Ye
- Hubei Key Laboratory of Processing and Application of Catalytic Materials , Huanggang Normal University , Huanggang , 438000 , China
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44
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Zhang Q, Wang B, Ma H, Ablajan K. Transition-metal-free catalyzed [3+2] cycloadditions/oxidative aromatization reactions for the synthesis of annulated indolizines. NEW J CHEM 2019. [DOI: 10.1039/c9nj03076j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A transition-metal-free catalyzed [3+2] cycloadditions/oxidative aromatization three-component reactions for direct construction of annulated indolizines was reported.
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Affiliation(s)
- Qianwei Zhang
- Key Laboratory of Oil & Gas Fine Chemicals
- Ministry of Education & Xinjiang Uyghur Autonomous Region
- College of Chemistry and Chemical Engineering
- Xinjiang University
- Urumqi 830046
| | - Bin Wang
- Key Laboratory of Oil & Gas Fine Chemicals
- Ministry of Education & Xinjiang Uyghur Autonomous Region
- College of Chemistry and Chemical Engineering
- Xinjiang University
- Urumqi 830046
| | - Huifang Ma
- Key Laboratory of Oil & Gas Fine Chemicals
- Ministry of Education & Xinjiang Uyghur Autonomous Region
- College of Chemistry and Chemical Engineering
- Xinjiang University
- Urumqi 830046
| | - Keyume Ablajan
- Key Laboratory of Oil & Gas Fine Chemicals
- Ministry of Education & Xinjiang Uyghur Autonomous Region
- College of Chemistry and Chemical Engineering
- Xinjiang University
- Urumqi 830046
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45
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Cen J, Li J, Zhang Y, Zhu Z, Yang S, Jiang H. Direct Assembly of 4-Substituted Quinolines with Vinyl Azides as a Dual Synthon via C═C and C–N Bond Cleavage. Org Lett 2018; 20:4434-4438. [DOI: 10.1021/acs.orglett.8b01718] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jinghe Cen
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Jianxiao Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Yu Zhang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Zhongzhi Zhu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Shaorong Yang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
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46
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Li B, Chen Z, Cao H, Zhao H. Transition-Metal-Free Regioselective Cross-Coupling: Controlled Synthesis of Mono- or Dithiolation Indolizines. Org Lett 2018; 20:3291-3295. [DOI: 10.1021/acs.orglett.8b01168] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Bin Li
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
| | - Zhiyu Chen
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
| | - Hua Cao
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
| | - Hong Zhao
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
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47
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Cui Z, Zhu B, Li X, Cao H. Access to sulfonylated furans or imidazo[1,2-a]pyridines via a metal-free three-component, domino reaction. Org Chem Front 2018. [DOI: 10.1039/c8qo00443a] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
An efficient three-component reaction for the synthesis of sulfonylated furans or imidazo[1,2-a]pyridines has been developed.
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Affiliation(s)
- Zhiming Cui
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Zhongshan 528458
- P. R. China
| | - Baofu Zhu
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Zhongshan 528458
- P. R. China
| | - Xuechen Li
- Department of Chemistry
- State Key Lab of Synthetic Chemistry
- The University of Hong Kong
- China
| | - Hua Cao
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Zhongshan 528458
- P. R. China
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