1
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Huo T, Zhao X, Cheng Z, Wei J, Zhu M, Dou X, Jiao N. Late-stage modification of bioactive compounds: Improving druggability through efficient molecular editing. Acta Pharm Sin B 2024; 14:1030-1076. [PMID: 38487004 PMCID: PMC10935128 DOI: 10.1016/j.apsb.2023.11.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 10/14/2023] [Accepted: 11/13/2023] [Indexed: 03/17/2024] Open
Abstract
Synthetic chemistry plays an indispensable role in drug discovery, contributing to hit compounds identification, lead compounds optimization, candidate drugs preparation, and so on. As Nobel Prize laureate James Black emphasized, "the most fruitful basis for the discovery of a new drug is to start with an old drug"1. Late-stage modification or functionalization of drugs, natural products and bioactive compounds have garnered significant interest due to its ability to introduce diverse elements into bioactive compounds promptly. Such modifications alter the chemical space and physiochemical properties of these compounds, ultimately influencing their potency and druggability. To enrich a toolbox of chemical modification methods for drug discovery, this review focuses on the incorporation of halogen, oxygen, and nitrogen-the ubiquitous elements in pharmacophore components of the marketed drugs-through late-stage modification in recent two decades, and discusses the state and challenges faced in these fields. We also emphasize that increasing cooperation between chemists and pharmacists may be conducive to the rapid discovery of new activities of the functionalized molecules. Ultimately, we hope this review would serve as a valuable resource, facilitating the application of late-stage modification in the construction of novel molecules and inspiring innovative concepts for designing and building new drugs.
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Affiliation(s)
- Tongyu Huo
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Xinyi Zhao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Zengrui Cheng
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Jialiang Wei
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
- Changping Laboratory, Beijing 102206, China
| | - Minghui Zhu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Xiaodong Dou
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Ning Jiao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
- Changping Laboratory, Beijing 102206, China
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, East China Normal University, Shanghai 200062, China
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2
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Shao C, Ma C, Li L, Liu J, Shen Y, Chen C, Yang Q, Xu T, Hu Z, Kan Y, Zhang T. Copper-promoted C5-selective bromination of 8-aminoquinoline amides with alkyl bromides. Beilstein J Org Chem 2024; 20:155-161. [PMID: 38292044 PMCID: PMC10825800 DOI: 10.3762/bjoc.20.14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 01/11/2024] [Indexed: 02/01/2024] Open
Abstract
An efficient and practical method for the synthesis of C5-brominated 8-aminoquinoline amides via a copper-promoted selective bromination of 8-aminoquinoline amides with alkyl bromides was developed. The reaction proceeds smoothly in dimethyl sulfoxide (DMSO) under air, employing activated and unactivated alkyl bromides as the halogenation reagents without additional external oxidants. This method features outstanding site selectivity, broad substrate scope, and excellent yields.
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Affiliation(s)
- Changdong Shao
- Jiangsu Provincial Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an, 223300, Jiangsu, China
| | - Chen Ma
- Jiangsu Provincial Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an, 223300, Jiangsu, China
| | - Li Li
- Jiangsu Provincial Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an, 223300, Jiangsu, China
| | - Jingyi Liu
- Jiangsu Provincial Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an, 223300, Jiangsu, China
| | - Yanan Shen
- Jiangsu Provincial Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an, 223300, Jiangsu, China
| | - Chen Chen
- Jiangsu Provincial Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an, 223300, Jiangsu, China
| | - Qionglin Yang
- Jiangsu Provincial Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an, 223300, Jiangsu, China
| | - Tianyi Xu
- Jiangsu Provincial Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an, 223300, Jiangsu, China
| | - Zhengsong Hu
- Jiangsu Provincial Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an, 223300, Jiangsu, China
| | - Yuhe Kan
- Jiangsu Provincial Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an, 223300, Jiangsu, China
| | - Tingting Zhang
- Jiangsu Provincial Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an, 223300, Jiangsu, China
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3
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Sun J, Guo Y, Xia J, Zheng G, Zhang Q. Catalyst-Free Trans-Selective Oxyiodination and Oxychlorination of Alkynes Employing N-X (Halogen) Reagents. Molecules 2023; 28:7420. [PMID: 37959838 PMCID: PMC10650761 DOI: 10.3390/molecules28217420] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 10/28/2023] [Accepted: 11/02/2023] [Indexed: 11/15/2023] Open
Abstract
β-halogenated enol esters and ethers are versatile building blocks in organic synthesis, which has attracted increasing attention. In this study, we report the facile trans-oxyiodination and oxychlorination of alkynes, leading to the direct construction of versatile halogenated enol esters and ethers. This transformation features an easy operation, optimal atomic economy, a strong functional group tolerance, broad substrate scope, and excellent trans-selectivity. Employing highly electrophilic bifunctional N-X (halogen) reagents was the key to achieving broad reaction generality. To our knowledge, this transformation represents the first oxyhalogenation system employing N-X (halogen) reagents as both oxylation and halogenation sources.
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Affiliation(s)
- Jiaqiong Sun
- School of Environment, Northeast Normal University, Changchun 130117, China;
| | - Yunliang Guo
- School of Environment, Northeast Normal University, Changchun 130117, China;
| | - Jiuli Xia
- Key Laboratory of Functional Organic Molecule Design & Synthesis of Jilin Province, Department of Chemistry, Northeast Normal University, Changchun 130024, China; (J.X.); (Q.Z.)
| | - Guangfan Zheng
- Key Laboratory of Functional Organic Molecule Design & Synthesis of Jilin Province, Department of Chemistry, Northeast Normal University, Changchun 130024, China; (J.X.); (Q.Z.)
| | - Qian Zhang
- Key Laboratory of Functional Organic Molecule Design & Synthesis of Jilin Province, Department of Chemistry, Northeast Normal University, Changchun 130024, China; (J.X.); (Q.Z.)
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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4
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Shao C, Xu T, Chen C, Yang Q, Tang C, Chen P, Lu M, Hu Z, Hu H, Zhang T. Copper-catalyzed selective C5-H bromination and difluoromethylation of 8-aminoquinoline amides using ethyl bromodifluoroacetate as the bifunctional reagent. RSC Adv 2023; 13:6993-6999. [PMID: 36874938 PMCID: PMC9977446 DOI: 10.1039/d3ra00088e] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 02/13/2023] [Indexed: 03/05/2023] Open
Abstract
A simple and effective method for the copper-catalyzed selective C5-H bromination and difluoromethylation of 8-aminoquinoline amides with ethyl bromodifluoroacetate as the bifunctional reagent was developed. The combination of cupric catalyst and alkaline additive results in a C5-bromination reaction, whereas cuprous catalyst combined with silver additive results in the C5-difluoromethylation reaction. This method has a broad substrate scope and allows for easy and convenient access to desired C5-functionalized quinolones with good to excellent yields.
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Affiliation(s)
- Changdong Shao
- Jiangsu Provincial Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University Huai'an 223300 Jiangsu China
| | - Tianyi Xu
- Jiangsu Provincial Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University Huai'an 223300 Jiangsu China
| | - Chen Chen
- Jiangsu Provincial Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University Huai'an 223300 Jiangsu China
| | - Qionglin Yang
- Jiangsu Provincial Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University Huai'an 223300 Jiangsu China
| | - Chao Tang
- Jiangsu Provincial Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University Huai'an 223300 Jiangsu China
| | - Ping Chen
- Jiangsu Provincial Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University Huai'an 223300 Jiangsu China
| | - Mingzhu Lu
- Jiangsu Provincial Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University Huai'an 223300 Jiangsu China
| | - Zhengsong Hu
- Jiangsu Provincial Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University Huai'an 223300 Jiangsu China
| | - Huayou Hu
- Jiangsu Provincial Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University Huai'an 223300 Jiangsu China
| | - Tingting Zhang
- Jiangsu Provincial Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University Huai'an 223300 Jiangsu China
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5
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Dutta HS, Ahmad A, Khan AA, Kumar M, Raziullah, Vaishnav J, Gangwar M, Ampapathi RS, Koley D. Diastereoselective [3 + 2] Cycloaddition of Quinoxalin-2(1 H)-ones with Donor-Acceptor Cyclopropanes: Efficient Synthesis of Tetrahydro pyrrolo[1,2- a]quinoxalin-4(5 H)-ones. J Org Chem 2021; 86:16558-16572. [PMID: 34780178 DOI: 10.1021/acs.joc.1c01872] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A ytterbium triflate-catalyzed diastereoselective [3 + 2] cycloaddition of quinoxalinones with donor-acceptor cyclopropanes and cyclobutanes is described. A series of tetrahydropyrrolo-quinoxalinone derivatives were obtained in high yields (up to 96%) with excellent diastereoselectivities (up to 46:1). Other medicinally important heterocycles like benzoxazinone, isoquinoxalinone, and dibenzoxazepine derivatives were also suitable for the desired annulation reaction. The current method is applicable for the scale-up reaction. Further, the utility of this annulation reaction is demonstrated by the synthesis of densely functionalized proline derivatives.
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Affiliation(s)
| | - Ashfaq Ahmad
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Afsar Ali Khan
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Mohit Kumar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Raziullah
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Jayanti Vaishnav
- SAIF, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Manoj Gangwar
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom Of Saudi Arabia
| | | | - Dipankar Koley
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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6
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Mal S, Jana M, Sarkar S. Recent Update on Transition Metal‐Free C(sp
2
)−H Bond Halogenation in (Hetero) Arenes. ChemistrySelect 2021. [DOI: 10.1002/slct.202102956] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Sourav Mal
- Department of Chemistry University of Kalyani Kalyani 741235 West Bengal India
| | - Manoranjan Jana
- Department of Chemistry University of Kalyani Kalyani 741235 West Bengal India
| | - Satinath Sarkar
- Department of Chemistry University of Kalyani Kalyani 741235 West Bengal India
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7
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Kumar M, Raziullah, Ahmad A, Dutta HS, Khan AA, Rastogi A, Kant R, Koley D. Cu(II)-Catalyzed C-N, C-O, C-Cl, C-S, and C-Se Bond Formation via C(sp 2)-H Activation Using 7-Azaindole as an Intrinsic Directing Group. J Org Chem 2021; 86:15185-15202. [PMID: 34696586 DOI: 10.1021/acs.joc.1c01811] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A general protocol has been developed for the construction of carbon-heteroatom (C-N, C-Cl, C-O, C-S, and C-Se) bonds using the bench stable, earth-abundant, and environmentally benign copper catalyst. Only oxygen is sufficient to regenerate the copper catalyst. Control experiments suggested that the proto-demetalation step is reversible. Depending on the coupling partner, the reaction follows either disproportionation or radical pathways to complete the catalytic cycle. The synthetic utility of the developed protocol has been demonstrated via various functional group transformations.
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Affiliation(s)
- Mohit Kumar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Raziullah
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Ashfaq Ahmad
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | | | - Afsar Ali Khan
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Anushka Rastogi
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Ruchir Kant
- Molecular and Structural Biology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Dipankar Koley
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
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8
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He X, Jiang Y, Zhou H, Zhu Q. Direct Phase‐Transition Catalysed Monohalogenation of 8‐Amidoquinolines at C5 Position in Water. ChemistrySelect 2021. [DOI: 10.1002/slct.202100616] [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)
- Xin He
- School of Chemical and Pharmaceutical Engineering Changzhou Institute of Engineering Technology No. 33, Middle Gehu Road Changzhou 213164 P. R. China
| | - Yujia Jiang
- School of Chemical and Pharmaceutical Engineering Changzhou Institute of Engineering Technology No. 33, Middle Gehu Road Changzhou 213164 P. R. China
| | - Haiping Zhou
- School of Chemical and Pharmaceutical Engineering Changzhou Institute of Engineering Technology No. 33, Middle Gehu Road Changzhou 213164 P. R. China
| | - Qihua Zhu
- Jiangsu Key Laboratory of Drug Design and Optimization Department of Medicinal Chemistry China Pharmaceutical University 639 Longmian Avenue Nanjing 211198 China
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9
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Abstract
C-X (X = halogen) bonds are indispensable functional groups in organic synthesis
by mediating a massive number of important organic reactions. While a variety of different
catalytic strategies are available for generating C-X bonds, those methods enabling the C-X
bond formation under transition metal-free conditions via the C-H bond functionalization are
particularly interesting because of the inherent atom economy and environmental friendliness
associated with such methods. Herein, the advancements in the transition metal-free halogenation
of C(2)-H bond are reviewed.
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Affiliation(s)
- Tian Luo
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Shanghui Tian
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Jie-Ping Wan
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Yunyun Liu
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
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10
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Raziullah, Kumar M, Khan AA, Dutta HS, Ahmad A, Vaishnav J, Kant R, Ampapathi RS, Koley D. Ru(II)‐Catalyzed Regioselective Hydroarylative Coupling of Indolines with Internal Alkynes by C−H Activation. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100085] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Raziullah
- Medicinal and Process Chemistry Division CSIR-Central Drug Research Institute Lucknow 226031 India
| | - Mohit Kumar
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Afsar Ali Khan
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | | | - Ashfaq Ahmad
- Medicinal and Process Chemistry Division CSIR-Central Drug Research Institute Lucknow 226031 India
| | | | - Ruchir Kant
- Molecular and Structural Biology Division CSIR-Central Drug Research Institute Lucknow 226031 India
| | - Ravi Sankar Ampapathi
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
- SAIF CSIR-Central Drug Research Institute Lucknow 226031 India
| | - Dipankar Koley
- Medicinal and Process Chemistry Division CSIR-Central Drug Research Institute Lucknow 226031 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
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11
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Ahmad A, Dutta HS, Kumar M, Khan AA, Raziullah, Koley D. Pd-Catalyzed C-H Halogenation of Indolines and Tetrahydroquinolines with Removable Directing Group. Org Lett 2020; 22:5870-5875. [PMID: 32657591 DOI: 10.1021/acs.orglett.0c01963] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Pd-catalyzed directing-group-assisted regioselective halogenations to C7 of indolines and C8 of tetrahydroquinolines were achieved in good to excellent yields. The practicality and utility of the developed method have been illustrated by various functional group transformations such as arylation, alkenylation, cyanation, and silylation utilizing the installed synthetic handle. The concise synthesis of primaquine, an antimalarial drug, and formal syntheses of two bioactive natural products, hippadine and pratosine, have also been demonstrated.
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Affiliation(s)
- Ashfaq Ahmad
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | | | - Mohit Kumar
- Academy of Scientific and Innovative Research, New Delhi 110001, India
| | - Afsar Ali Khan
- Academy of Scientific and Innovative Research, New Delhi 110001, India
| | - Raziullah
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Dipankar Koley
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India.,Academy of Scientific and Innovative Research, New Delhi 110001, India
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12
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Remote C–H Functionalization of 8-Aminoquinoline Ring. Top Curr Chem (Cham) 2020; 378:42. [DOI: 10.1007/s41061-020-00303-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 03/31/2020] [Indexed: 12/13/2022]
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13
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Li D, Jia Z, Jiang Y, Jia J, Zhao X, Li Z, Xu Z. One‐Pot Functionalization of 8‐Aminoquinolines through the Acylation and Regioselective C5‐H Halogenation under Transition‐Metal‐Free Conditions. ChemistrySelect 2019. [DOI: 10.1002/slct.201904286] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Dandan Li
- School of Chemistry and Chemical EngineeringXuchang University No.88, Bayi Road, Xuchang Henan 461000 P. R. China
| | - Zhenzhen Jia
- School of Chemistry and Chemical EngineeringXuchang University No.88, Bayi Road, Xuchang Henan 461000 P. R. China
| | - Yongshuai Jiang
- School of Chemistry and Chemical EngineeringXuchang University No.88, Bayi Road, Xuchang Henan 461000 P. R. China
| | - Jingpeng Jia
- School of Chemistry and Chemical EngineeringXuchang University No.88, Bayi Road, Xuchang Henan 461000 P. R. China
| | - Xiaowei Zhao
- School of Chemistry and Chemical EngineeringXuchang University No.88, Bayi Road, Xuchang Henan 461000 P. R. China
| | - Zehui Li
- School of Chemistry and Chemical EngineeringXuchang University No.88, Bayi Road, Xuchang Henan 461000 P. R. China
| | - Zhihong Xu
- School of Chemistry and Chemical EngineeringXuchang University No.88, Bayi Road, Xuchang Henan 461000 P. R. China
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14
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Affiliation(s)
- Bhuttu Khan
- Medicinal and Process Chemistry Division; CSIR-Central Drug Research Institute; Lucknow 226031 India
| | - Himangsu Sekhar Dutta
- Medicinal and Process Chemistry Division; CSIR-Central Drug Research Institute; Lucknow 226031 India
| | - Dipankar Koley
- Medicinal and Process Chemistry Division; CSIR-Central Drug Research Institute; Lucknow 226031 India
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15
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Ahmad A, Dutta HS, Khan B, Kant R, Koley D. Cu(I)-Catalyzed Site Selective Acyloxylation of Indoline Using O2
as the Sole Oxidant. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800040] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Ashfaq Ahmad
- Medicinal and Process Chemistry Division; CSIR-Central Drug Research Institute; Lucknow 226031 India
| | - Himangsu Sekhar Dutta
- Medicinal and Process Chemistry Division; CSIR-Central Drug Research Institute; Lucknow 226031 India
| | - Bhuttu Khan
- Medicinal and Process Chemistry Division; CSIR-Central Drug Research Institute; Lucknow 226031 India
| | - Ruchir Kant
- Molecular and Structural Biology Division; CSIR-Central Drug Research Institute; Lucknow 226031 India
| | - Dipankar Koley
- Medicinal and Process Chemistry Division; CSIR-Central Drug Research Institute; Lucknow 226031 India
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