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Dong CL, Liu HC, He YH, Guan Z. Photoinduced Redox Cascade Reaction of Isatins and Aliphatic Carboxylic Acids to Access 6-Hydroxyindoloquinazolinones. Chemistry 2024; 30:e202400655. [PMID: 38959118 DOI: 10.1002/chem.202400655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Revised: 06/25/2024] [Accepted: 07/01/2024] [Indexed: 07/05/2024]
Abstract
A visible-light-induced cascade reaction is described for the one-pot synthesis of 6-hydroxyindoloquinazolinones using isatins (or isatins and isatoic anhydrides) and aliphatic carboxylic acids. The method provides 36 desired products in 33-96 % yield, exhibiting broad substrate scope and good functional group tolerance. This approach utilizes inexpensive and commercially available starting materials, enabling the direct construction of high-value complex structures under mild conditions without the need for photocatalyst, showcasing significant applicability and environmental friendliness.
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Affiliation(s)
- Chun-Lin Dong
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Han-Chi Liu
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Yan-Hong He
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Zhi Guan
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
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Huang LQ, Dong CL, He YH, Guan Z. Visible Light‐Induced Radical‐Radical Coupling: One‐Pot Synthesis of 6‐benzyl‐6‐hydroxyindolo[2,1‐b]quinazolin‐12(6H)‐ones from Isatins and Potassium Benzyl Trifluoroborates. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Zahra Sadeghian ZS, Bayat M. Synthesis of Heterocyclic Compounds Based on Isatins. CURR ORG CHEM 2022. [DOI: 10.2174/1385272826666220430145522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Isatin (1H-indole-2,3-diones) and its derivatives are a unique structure of heterocyclic molecules with great synthetic versatility and enormous biological activities of interest. Isatins have been broadly used as building blocks for the formation of a wide range of N-heterocycles. These applicable compounds undergo various reactions to form new heterocyclic compounds. The focus of this review is to summarize the recent literature and key reactions published about Pfitzinger, ring-opening, and ring expansion reactions of isatin and its derivatives during the period from 2018 to 2020. We believe this gives some insight and helps to bring about new ideas for further research.
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Affiliation(s)
| | - Mohammad Bayat
- Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, Iran
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Pineiro M, Brandão P, Burke AJ. Tryptanthrin and Its Derivatives in Drug Discovery: Synthetic Insights. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/s-0040-1719901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
AbstractTryptanthrin is a golden-yellow, naturally occurring alkaloid that can be obtained from multiple sources and through different synthetic methodologies. This tetracyclic compound displays several relevant biological activities. The potential of this tetracyclic alkaloid has been widely explored, and several researchers have focused their attention on expanding the variety of tryptanthrin derivatives by using a range of synthetic strategies. In this short review, we aim to address recent developments in the synthesis of the tryptanthrin core, as well as the development of new strategies employed by synthetic organic chemists to obtain novel tryptanthrin derivatives with potential biological activity, using different tools from the chemists’ toolbox, such as photocatalysis, solvent-free approaches, and multicomponent reactions.
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Affiliation(s)
| | - Pedro Brandão
- CQC, Department of Chemistry, University of Coimbra
- LAQV-REQUIMTE, University of Évora
| | - Anthony J. Burke
- LAQV-REQUIMTE, University of Évora
- Department of Chemistry, University of Évora
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Synthesis and antitumor activity screening of spiro tryptanthrin-based heterocyclic compounds. Med Chem Res 2022. [DOI: 10.1007/s00044-022-02856-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Pinheiro D, Pineiro M, de Melo JSS. Sulfonated tryptanthrin anolyte increases performance in pH neutral aqueous redox flow batteries. Commun Chem 2021; 4:89. [PMID: 36697575 PMCID: PMC9814137 DOI: 10.1038/s42004-021-00523-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 05/14/2021] [Indexed: 01/28/2023] Open
Abstract
Aqueous organic redox flow batteries (AORFBs) hold great promise as low-cost, environmentally friendly and safe alternative energy storage media. Here we present aqueous organometallic and all-organic active materials for RFBs with a water-soluble active material, sulfonated tryptanthrin (TRYP-SO3H), working at a neutral pH and showing long-term stability. Electrochemical measurements show that TRYP-SO3H displays reversible peaks at neutral pH values, allowing its use as an anolyte combined with potassium ferrocyanide or 4,5-dihydroxy-1,3-benzenedisulfonic acid disodium salt monohydrate as catholytes. Single cell tests show reproducible charge-discharge cycles for both catholytes, with significantly improved results for the aqueous all-organic RFB reaching high cell voltage (0.94 V) and high energy efficiencies, stabilized during at least 50 working cycles.
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Affiliation(s)
- Daniela Pinheiro
- University of Coimbra, CQC, Department of Chemistry, Rua Larga, Coimbra, Portugal
| | - Marta Pineiro
- University of Coimbra, CQC, Department of Chemistry, Rua Larga, Coimbra, Portugal
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Pattarawarapan M, Wiriya N, Hongsibsong S, Phakhodee W. Divergent Synthesis of Methylisatoid and Tryptanthrin Derivatives by Ph 3P-I 2-Mediated Reaction of Isatins with and without Alcohols. J Org Chem 2020; 85:15743-15751. [PMID: 33226811 DOI: 10.1021/acs.joc.0c02403] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A novel phosphonium-mediated reaction of isatins is described. In the presence of alcohol, the reaction proceeds to furnish C-12 modified tryptanthrin derivatives. Without alcohol, self-dimerization of isatins gives rise to tryptanthrin and its analogs. This divergent and step-economic approach provides a facile access to diverse indoloquinazoline structures including the natural alkaloids, methylisatoid and cephalanthrin B, in high yields from simple precursors under mild and metal-free reaction conditions.
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Affiliation(s)
- Mookda Pattarawarapan
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.,Research Center on Chemistry for Development of Health Promoting Products from Northern Resources, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Nittaya Wiriya
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Surat Hongsibsong
- School of Health Science Research, Research Institute for Health Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Wong Phakhodee
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.,Research Center on Chemistry for Development of Health Promoting Products from Northern Resources, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand
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2-Aminobenzaldehyde, a common precursor to acridines and acridones endowed with bioactivities. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131435] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Wilde M, Arzur D, Baratte B, Lefebvre D, Robert T, Roisnel T, Le Jossic-Corcos C, Bach S, Corcos L, Erb W. Regorafenib analogues and their ferrocenic counterparts: synthesis and biological evaluation. NEW J CHEM 2020. [DOI: 10.1039/d0nj05334a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
New ferrocene analogues of regorafenib have been prepared and their biological activity was evaluated in kinase and cellular assays.
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