1
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Kapidou E, Litinas KE. An Overview of the Synthesis of 3,4-Fused Pyrrolocoumarins of Biological Interest. Molecules 2024; 29:2748. [PMID: 38930816 PMCID: PMC11206682 DOI: 10.3390/molecules29122748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 06/05/2024] [Accepted: 06/07/2024] [Indexed: 06/28/2024] Open
Abstract
3,4-Fused pyrrolocoumarins, synthetically prepared or naturally occurring, possess interesting biological properties. In this review, the synthetic strategies for the synthesis of the title compounds are presented along with their biological activities. Two routes are followed for that synthesis. In one, the pyrrole ring is formed from coumarin derivatives, such as aminocoumarins or other coumarins. In the other approach, the pyranone moiety is built from an existing pyrrole derivative or through the simultaneous formation of coumarin and pyrrole frameworks. The above syntheses are achieved via 1,3-dipolar cycloaddition reactions, Michael reaction, aza-Claisen rearrangement reactions, multi-component reactions (MCR), as well as metal-catalyzed reactions. Pyrrolocoumarins present cytotoxic, antifungal, antibacterial, α-glucosidase inhibition, antioxidant, lipoxygenase (LOX) inhibition, and fluorescent activities, as well as benzodiazepine receptor ability.
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Affiliation(s)
| | - Konstantinos E. Litinas
- Laboratory of Organic Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
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2
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Parte LG, Fernández S, Sandonís E, Guerra J, López E. Transition-Metal-Catalyzed Transformations for the Synthesis of Marine Drugs. Mar Drugs 2024; 22:253. [PMID: 38921564 PMCID: PMC11204618 DOI: 10.3390/md22060253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 05/23/2024] [Accepted: 05/25/2024] [Indexed: 06/27/2024] Open
Abstract
Transition metal catalysis has contributed to the discovery of novel methodologies and the preparation of natural products, as well as new chances to increase the chemical space in drug discovery programs. In the case of marine drugs, this strategy has been used to achieve selective, sustainable and efficient transformations, which cannot be obtained otherwise. In this perspective, we aim to showcase how a variety of transition metals have provided fruitful couplings in a wide variety of marine drug-like scaffolds over the past few years, by accelerating the production of these valuable molecules.
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Affiliation(s)
- Lucía G. Parte
- Department of Organic Chemistry, Science Faculty, University of Valladolid (UVa), Paseo de Belén 7, 47011 Valladolid, Spain; (L.G.P.); (E.S.)
| | - Sergio Fernández
- Department of Chemistry, School of Physical and Chemical Sciences, Queen Mary University of London (QMUL), Mile End Road, London E1 4NS, UK;
| | - Eva Sandonís
- Department of Organic Chemistry, Science Faculty, University of Valladolid (UVa), Paseo de Belén 7, 47011 Valladolid, Spain; (L.G.P.); (E.S.)
| | - Javier Guerra
- Department of Organic Chemistry, Science Faculty, University of Valladolid (UVa), Paseo de Belén 7, 47011 Valladolid, Spain; (L.G.P.); (E.S.)
| | - Enol López
- Department of Organic Chemistry, ITAP, School of Engineering (EII), University of Valladolid (UVa), Dr Mergelina, 47002 Valladolid, Spain
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3
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García Maza LJ, Salgado AM, Kouznetsov VV, Meléndez CM. Pyrrolo[2,1- a]isoquinoline scaffolds for developing anti-cancer agents. RSC Adv 2024; 14:1710-1728. [PMID: 38187449 PMCID: PMC10768717 DOI: 10.1039/d3ra07047f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 12/14/2023] [Indexed: 01/09/2024] Open
Abstract
Fused pyrrolo[2,1-a]isoquinolines have emerged as compelling molecules with remarkably potent cytotoxic activity and topoisomerase inhibitors. This comprehensive review delves into the intricate world of this family of compounds, analyzing the natural marine lamellarins known for their diverse and complex chemical structures, exploring structure-activity relationships (SARs), and highlighting their remarkable versatility. The review emphasizes their fundamental role as topoisomerase inhibitors and cytotoxic agents, as well as some crucial aspects of the chemistry of pyrrolo[2,1-a]isoquinolines, exploring synthetic strategies in total synthesis and molecular diversification trends, highlighting their importance in the field of medicinal chemistry and beyond.
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Affiliation(s)
- Leidy J García Maza
- Facultad de Ciencias Básicas, Grupo de Investigación de Química Orgánica y Biomédica, Universidad del Atlántico Barranquilla Colombia
| | - Arturo Mendoza Salgado
- Facultad de Ciencias Básicas, Grupo de Investigación de Química Orgánica y Biomédica, Universidad del Atlántico Barranquilla Colombia
| | - Vladimir V Kouznetsov
- Laboratorio de Química Orgánica y Biomolecular, Escuela de Química, Universidad Industrial de Santander Piedecuesta 680002 Colombia
| | - Carlos M Meléndez
- Facultad de Ciencias Básicas, Grupo de Investigación de Química Orgánica y Biomédica, Universidad del Atlántico Barranquilla Colombia
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4
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Segura-Quezada LA, Hernández-Velázquez ED, Corrales-Escobosa AR, de León-Solis C, Solorio-Alvarado CR. Ningalins, Pyrrole-Bearing Metabolites Isolated from Didemnum spp. Synthesis and MDR-Reversion Activity in Cancer Therapy. Chem Biodivers 2024; 21:e202300883. [PMID: 38010267 DOI: 10.1002/cbdv.202300883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 11/22/2023] [Accepted: 11/24/2023] [Indexed: 11/29/2023]
Abstract
Multi-Drug Resistance (MDR) is one of the most frequent problems observed in the course of cancer chemotherapy. Cells under treatment, tend to develop survival mechanisms to drug-action thus generating drug-resistance. One of the most important mechanism to get it is the over expression of P-gp glycoprotein, which acts as an efflux-pump releasing the drug outside of the cancer cell. A strategy for a succesfull treatment consists in the co-administration of one compound that acts against P-gp and another which acts against the cell during chemotherapy. Ningalins are pyrrole-containing naturally occurring compounds isolated mainly from the marine tunicate Didemnum spp and also they are some of the top reversing agents in MDR treatment acting on P-gp. Considering the relevance displayed for some of these isolated alkaloids or their core as a drug for co-administration in cancer therapy, all the total synthesis described to date for the members of ningalins family are reviewed herein.
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Affiliation(s)
- Luis A Segura-Quezada
- Universidad de Guanajuato, Departamento de Química, División de Ciencias Naturales y Exactas, Campus Guanajuato., Noria Alta S/N, 36050, Guanajuato, Gto., México
| | - Edson D Hernández-Velázquez
- Universidad de Guanajuato, Departamento de Química, División de Ciencias Naturales y Exactas, Campus Guanajuato., Noria Alta S/N, 36050, Guanajuato, Gto., México
| | - Alma R Corrales-Escobosa
- Universidad de Guanajuato, Departamento de Química, División de Ciencias Naturales y Exactas, Campus Guanajuato., Noria Alta S/N, 36050, Guanajuato, Gto., México
| | - Claudia de León-Solis
- Instituto de Investigaciones Químicas, Biológicas, Biomédicas y Biofísicas., Universidad Mariano Gálvez, Guatemala, Guatemala
| | - César R Solorio-Alvarado
- Universidad de Guanajuato, Departamento de Química, División de Ciencias Naturales y Exactas, Campus Guanajuato., Noria Alta S/N, 36050, Guanajuato, Gto., México
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5
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Cui HL, Chen XH. Synthesis of Pyrrolo[2,1- a]isoquinolines through Cu-Catalyzed Condensation/Addition/Oxidation/Cyclization Cascade. J Org Chem 2022; 87:15435-15447. [PMID: 36315447 DOI: 10.1021/acs.joc.2c01978] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
We have developed a copper-catalyzed synthesis of pyrrolo[2,1-a]isoquinolines with terminal alkynes, aldehydes, and tetrahydroisoquinolines. A variety of pyrrolo[2,1-a]isoquinolines have been prepared in 17-69% yield via a condensation/Mannich-type addition/oxidation/cyclization cascade sequence. Modifications through simple chemical transformations provided highly functionalized molecules containing a privileged framework.
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Affiliation(s)
- Hai-Lei Cui
- Laboratory of Asymmetric Synthesis, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, P.R. China
| | - Xiao-Hui Chen
- Laboratory of Asymmetric Synthesis, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, P.R. China
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6
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Li J, Li D, Wang Z, Zhang H, Lu N, Cui L, Wu N, Li C. Diastereoselective Synthesis of Chromenopyrrole Derivative Enabled by Multicomponent Reaction of Isocyanide, Allenoate, and Phenol. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200790] [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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7
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Yadav N, Saquib M, Arya KK, Hussain MK. A Versatile New Approach to Bridgehead Nitrogen Bearing Benzimidazolo-Quinazoline Hybrids: Facile 1,4-Dipolar Cycloaddition of Benzyne and N-(1 H-Benzo[ d]Imidazol-2-yl)-1-Phenylmethanimines. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2105907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Nisha Yadav
- Department of Chemistry, Dayanand Arya Kanya Degree College Moradabad (M.J.P. Rohilkhand University), Bareilly, India
| | - Mohammad Saquib
- Department of Chemistry, University of Allahabad, Prayagraj (Allahabad), India
| | - Krishan Kumar Arya
- Department of Chemistry, Government Model Degree College, Arniya, Bulandshahar, India
| | - Mohd Kamil Hussain
- Department of Chemistry, Government Raza P.G. College (M.J.P. Rohilkhand University), Rampur, India
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8
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Li J, Jiang LM, Cheng F, Zhou YJ, Duan DS, Zhu DY, Zhang K, Xiong Z, Wang SH. Total Synthesis of Sinopyrine B. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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9
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Silyanova EA, Samet AV, Semenov VV. A Two-Step Approach to a Hexacyclic Lamellarin Core via 1,3-Dipolar Cycloaddition of Isoquinolinium Ylides to Nitrostilbenes. J Org Chem 2022; 87:6444-6453. [PMID: 35467869 DOI: 10.1021/acs.joc.2c00312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The 1,3-dipolar cycloaddition reaction of isoquinolinium ylides to nitrostilbenes provides an approach to 1,2-diarylpyrrolo[2,1-a]isoquinolinium-3-carboxylates and then to a complete hexacyclic lamellarin core.
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Affiliation(s)
- E A Silyanova
- N. D. Zelinsky Institute of Organic Chemistry RAS, 47 Leninsky Prospect, 119991 Moscow, Russian Federation
| | - A V Samet
- N. D. Zelinsky Institute of Organic Chemistry RAS, 47 Leninsky Prospect, 119991 Moscow, Russian Federation
| | - V V Semenov
- N. D. Zelinsky Institute of Organic Chemistry RAS, 47 Leninsky Prospect, 119991 Moscow, Russian Federation
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10
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Abstract
Pyrrolo[2,1-a]isoquinolines occur frequently in a large number of bioactive natural products and pharmaceutically important molecules. The synthesis of pyrrolo[2,1-a]isoquinoline derivatives is an easy and useful way to produce artificial molecules with potential applications. A huge number of excellent methodologies for constructing pyrrolo[2,1-a]isoquinolines have been reported in the last decade. This review summarizes the recent advances in this research field covering from 2011 to 2021.
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Affiliation(s)
- Hai-Lei Cui
- Laboratory of Asymmetric Synthesis, Chongqing University of Arts and Sciences, 319 Honghe Ave., Yongchuan, Chongqing, 402160, PR China.
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11
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Aminkhani A, Sharifi S. Solvent-Free Synthesis of Pyrrolo [2,1-α] Isoquinolines via One-Pot Four-
Component Reaction. LETT ORG CHEM 2022. [DOI: 10.2174/1570178618666210805103552] [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
Abstract:
An efficient four-component reaction to synthesize pyrrolo [2,1-a] isoquinolines from
malononitrile, aromatic aldehydes, isoquinoline, and cyclohexyl isocyanide under solvent-free
conditions is described. In a convenient, simple, and efficient one-pot procedure, the domino
Knoevenagel-nucleophilic cycloaddition reaction affords excellent yields of products in less
than 1 h.
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Affiliation(s)
- Ali Aminkhani
- Department of Chemistry, Khoy Branch, Islamic Azad University, Khoy, Iran
| | - Sina Sharifi
- Department of Ophthalmology, Massachusetts
Eye and Ear and Schepens Eye Research Institute, Harvard Medical School, MA, USA
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12
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Okano K, Okui Y, Yasuda Y, Mori A. Total Synthesis of Lamellarins U and A3 by Interrupting Halogen Dance. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1736-7337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
AbstractA total synthesis of lamellarins U and A3 is described. The synthesis features the interruption of a halogen dance reaction of a metalated α,β-dibromopyrrole. The pyrrolylmagnesium reagent, generated by deprotonative metalation by using (TMP)MgCl·LiCl (TMP = 2,2,6,6-tetramethylpiperidide) as the base, was transmetalated to the corresponding organozinc species without causing the halogen dance reaction, which underwent a Negishi coupling to incorporate an aryl group onto the pyrrole ring. The arylated α,β-dibromopyrrole was then converted into lamellarins U and A3 through an α-selective halogen–magnesium exchange followed by carboxylation and subsequent palladium-mediated cyclization. The late-stage introduction of another aryl group was performed using a Kosugi–Migita–Stille coupling to provide lamellarins U and A3.
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Affiliation(s)
- Kentaro Okano
- Department of Chemical Science and Engineering, Kobe University
| | - Yuya Okui
- Department of Chemical Science and Engineering, Kobe University
| | - Yuto Yasuda
- Department of Chemical Science and Engineering, Kobe University
| | - Atsunori Mori
- Department of Chemical Science and Engineering, Kobe University
- Research Center for Membrane and Film Technology, Kobe University
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13
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Jhang J, Manjappa KB, Yang D. Synthesis of Naphthoquinone‐ and Pyrrolo[2,1‐
a
]isoquinoline‐Fused Heterocycles and Tridemethoxy Lamellarin D. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202100660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jia‐Wei Jhang
- Department of Chemistry Tunghai University No. 1727, Sec. 4, Taiwan Boulevard, Xitun District Taichung Taiwan
| | - Kiran B. Manjappa
- Graduate Program for Biomedical and Materials Science Tunghai University No. 1727, Sec. 4, Taiwan Boulevard, Xitun District Taichung Taiwan
| | - Ding‐Yah Yang
- Department of Chemistry Tunghai University No. 1727, Sec. 4, Taiwan Boulevard, Xitun District Taichung Taiwan
- Graduate Program for Biomedical and Materials Science Tunghai University No. 1727, Sec. 4, Taiwan Boulevard, Xitun District Taichung Taiwan
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14
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Shang ZH, Zhang XJ, Li YM, Wu RX, Zhang HR, Qin LY, Ni X, Yan Y, Wu AX, Zhu YP. One-Pot Synthesis of Chromone-Fused Pyrrolo[2,1- a]isoquinolines and Indolizino[8,7- b]indoles: Iodine-Promoted Oxidative [2 + 2 + 1] Annulation of O-Acetylphenoxyacrylates with Tetrahydroisoquinolines and Noreleagnines. J Org Chem 2021; 86:15733-15742. [PMID: 34633821 DOI: 10.1021/acs.joc.1c01682] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An iodine-promoted one-pot cascade oxidative annulation reaction has been developed for the synthesis of chromone-fused-pyrrolo[2,1-a]isoquinolines and indolizino[8,7-b]indoles from o-acetylphenoxyacrylates, tetrahydroisoquinolines, and noreleagnines. This process underwent a logical approach to both chromone-fused-pyrrolo[2,1-a]isoquinolines and chromone-fused-indolizino[8,7-b]indoles isolamellarin derivatives. Manipulations of l-menthol and dl-α-tocopherol demonstrate the applications of this strategy.
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Affiliation(s)
- Zhi-Hao Shang
- 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, People's Republic of China
| | - 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, People's Republic of China
| | - Yi-Ming Li
- 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, People's Republic of 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, People's Republic of China
| | - Hui-Ru 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, People's Republic of China
| | - Lu-Ying Qin
- 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, People's Republic of China
| | - Xue Ni
- 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, People's Republic of China
| | - Yu Yan
- 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, People's Republic of China
| | - An-Xin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Hubei, Wuhan 430079, People's Republic of 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, People's Republic of China
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15
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Morii K, Yasuda Y, Morikawa D, Mori A, Okano K. Total Synthesis of Lamellarins G, J, L, and Z Using One-Pot Halogen Dance/Negishi Coupling. J Org Chem 2021; 86:13388-13401. [PMID: 34546054 DOI: 10.1021/acs.joc.1c01505] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A bottom-up synthesis of lamellarins G, J, L, and Z was achieved via one-pot halogen dance/Negishi coupling of a lithiated dibromopyrrole derivative. The easily accessible dibromopyrrole bearing an ester moiety underwent halogen dance smoothly at -78 °C within 10 min. The resultant α-pyrrolyllithium was transmetalated to the corresponding organozinc species, which was then coupled with an aryl iodide in the presence of catalytic palladium to provide the fully substituted pyrrole. Subsequent halogen-lithium exchange was performed to incorporate a boronate group exclusively at the β position proximal to the ester moiety. This synthetic intermediate allowed stepwise diarylation for the total synthesis of lamellarins G, J, L, and Z.
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Affiliation(s)
- Kazuki Morii
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
| | - Yuto Yasuda
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
| | - Daiki Morikawa
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
| | - Atsunori Mori
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan.,Research Center for Membrane and Film Technology, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
| | - Kentaro Okano
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
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16
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Seipp K, Geske L, Opatz T. Marine Pyrrole Alkaloids. Mar Drugs 2021; 19:514. [PMID: 34564176 PMCID: PMC8471394 DOI: 10.3390/md19090514] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 09/05/2021] [Accepted: 09/07/2021] [Indexed: 12/13/2022] Open
Abstract
Nitrogen heterocycles are essential parts of the chemical machinery of life and often reveal intriguing structures. They are not only widespread in terrestrial habitats but can also frequently be found as natural products in the marine environment. This review highlights the important class of marine pyrrole alkaloids, well-known for their diverse biological activities. A broad overview of the marine pyrrole alkaloids with a focus on their isolation, biological activities, chemical synthesis, and derivatization covering the decade from 2010 to 2020 is provided. With relevant structural subclasses categorized, this review shall provide a clear and timely synopsis of this area.
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Affiliation(s)
| | | | - Till Opatz
- Department of Chemistry, Organic Chemistry Section, Johannes Gutenberg University, Duesbergweg 10–14, 55128 Mainz, Germany; (K.S.); (L.G.)
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17
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Koohgard M, Hosseinpour Z, Hosseini-Sarvari M. Dual organic dyes as a pseudo-redox mediation system to promotion of tandem oxidation /[3+2] cycloaddition reactions under visible light. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132166] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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18
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Marine Heterocyclic Compounds That Modulate Intracellular Calcium Signals: Chemistry and Synthesis Approaches. Mar Drugs 2021; 19:md19020078. [PMID: 33572583 PMCID: PMC7911796 DOI: 10.3390/md19020078] [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: 12/30/2020] [Revised: 01/26/2021] [Accepted: 01/28/2021] [Indexed: 11/21/2022] Open
Abstract
Intracellular Ca2+ plays a pivotal role in the control of a large series of cell functions in all types of cells, from neurotransmitter release and muscle contraction to gene expression, cell proliferation and cell death. Ca2+ is transported through specific channels and transporters in the plasma membrane and subcellular organelles such as the endoplasmic reticulum and mitochondria. Therefore, dysregulation of intracellular Ca2+ homeostasis may lead to cell dysfunction and disease. Accordingly, chemical compounds from natural origin and/or synthesis targeting directly or indirectly these channels and proteins may be of interest for the treatment of cell dysfunction and disease. In this review, we show an overview of a group of marine drugs that, from the structural point of view, contain one or various heterocyclic units in their core structure, and from the biological side, they have a direct influence on the transport of calcium in the cell. The marine compounds covered in this review are divided into three groups, which correspond with their direct biological activity, such as compounds with a direct influence in the calcium channel, compounds with a direct effect on the cytoskeleton and drugs with an effect on cancer cell proliferation. For each target, we describe its bioactive properties and synthetic approaches. The wide variety of chemical structures compiled in this review and their significant medical properties may attract the attention of many different researchers.
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19
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Khan I, Ibrar A, Zaib S. Alkynoates as Versatile and Powerful Chemical Tools for the Rapid Assembly of Diverse Heterocycles under Transition-Metal Catalysis: Recent Developments and Challenges. Top Curr Chem (Cham) 2021; 379:3. [PMID: 33398642 DOI: 10.1007/s41061-020-00316-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Accepted: 11/16/2020] [Indexed: 12/15/2022]
Abstract
Heterocycles, heteroaromatics and spirocyclic entities are ubiquitous components of a wide plethora of synthetic drugs, biologically active natural products, marketed pharmaceuticals and agrochemical targets. Recognizing their high proportion in drugs and rich pharmacological potential, these invaluable structural motifs have garnered significant interest, thus enabling the development of efficient catalytic methodologies providing access to architecturally complex and diverse molecules with high atom-economy and low cost. These chemical processes not only allow the formation of diverse heterocycles but also utilize a range of flexible and easily accessible building units in a single operation to discover diversity-oriented synthetic approaches. Alkynoates are significantly important, diverse and powerful building blocks in organic chemistry due to their unique and inherent properties such as the electronic bias on carbon-carbon triple bonds posed by electron-withdrawing groups or the metallic coordination site provided by carbonyl groups. The present review highlights the comprehensive picture of the utility of alkynoates (2007-2019) for the synthesis of various heterocycles (> 50 types) using transition-metal catalysts (Ru, Rh, Pd, Ir, Ag, Au, Pt, Cu, Mn, Fe) in various forms. The valuable function of versatile alkynoates (bearing multifunctional groups) as simple and useful starting materials is explored, thus cyclizing with an array of coupling partners to deliver a broad range of oxygen-, nitrogen-, sulfur-containing heterocycles alongside fused-, and spiro-heterocyclic compounds. In addition, these examples will also focus the scope and reaction limitations, as well as mechanistic investigations into the synthesis of these heterocycles. The biological significance will also be discussed, citing relevant examples of drug molecules highlighting each class of heterocycles. This review summarizes the recent developments in the synthetic methods for the synthesis of various heterocycles using alkynoates as readily available starting materials under transition-metal catalysis.
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Affiliation(s)
- Imtiaz Khan
- Department of Chemistry, School of Natural Sciences, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK.
- Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester, M1 7DN, UK.
| | - Aliya Ibrar
- Department of Chemistry, Faculty of Natural Sciences, The University of Haripur, Haripur, KPK-22620, Pakistan
| | - Sumera Zaib
- Department of Biochemistry, Faculty of Life Sciences, University of Central Punjab, Lahore, 54590, Pakistan
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20
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Gao Z, Wang Y, Song H, Xu Z, Jia Y. Cascade Cyclization Reaction Initiated by Benzylic Carbocation of Indole: Scope and Mechanistic Insights. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202102006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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21
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Chen W, Liu Q. Recent Advances in the Oxidative Coupling Reaction of Enol Derivatives. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202104058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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22
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Satyanarayana I, Yang DY, Liou TJ. Synthesis of lamellarin R, lukianol A, lamellarin O and their analogues. RSC Adv 2020; 10:43168-43174. [PMID: 35514893 PMCID: PMC9058285 DOI: 10.1039/d0ra09249e] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 11/22/2020] [Indexed: 11/21/2022] Open
Abstract
Three lamellarin alkaloids type III (lamellarin R, lukianol A and lamellarin O) were synthesized using the Barton-Zard reaction as a key step to construct the central pyrrole core. Some of their corresponding 4-benzoyl and 5-phenyl substituted pyrrole analogues were also prepared via an initial three-component reaction of glycine methyl ester, benzaldehyde, and chalcone to generate the pyrrolidine scaffold, and followed by DDQ oxidation and N-alkylation.
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Affiliation(s)
- Iddum Satyanarayana
- Department of Chemistry, Tunghai University No. 1727, Sec. 4, Taiwan. Boulevard, Xitun District Taichung 407224 Taiwan
| | - Ding-Yah Yang
- Department of Chemistry, Tunghai University No. 1727, Sec. 4, Taiwan. Boulevard, Xitun District Taichung 407224 Taiwan
- Graduate Program for Biomedical and Materials Science, Tunghai University No. 1727, Sec. 4, Taiwan Boulevard, Xitun District Taichung 407224 Taiwan
| | - Teau-Jiuan Liou
- Department of Applied English, Chaoyang University of Technology No. 168, Jifeng E. Rd., Wufeng District Taichung 413310 Taiwan
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23
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Rani NV, Kunta R. Acetic acid promoted an efficient and eco-friendly one-pot synthesis of functionalized novel isoxazolyl amino chromenopyrrole derivatives in aqueous medium. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1846058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Nallamothu Vanaja Rani
- Department of Chemistry, Koneru Lakshmaiah Education Foundation, Guntur, Andhra Pradesh, India
| | - Ravindhranath Kunta
- Department of Chemistry, Koneru Lakshmaiah Education Foundation, Guntur, Andhra Pradesh, India
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24
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Xie Z, Li F, Niu L, Li H, Zheng J, Han R, Ju Z, Li S, Li D. CuBr/NHPI co-catalyzed aerobic oxidative [3 + 2] cycloaddition-aromatization to access 5,6-dihydro-pyrrolo[2,1-a]isoquinolines. Org Biomol Chem 2020; 18:6889-6898. [PMID: 32852493 DOI: 10.1039/d0ob01403f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient and enviromentally friendly CuBr/NHPI co-catalyzed aerobic oxidative [3 + 2] cycloaddition-aromatization cascade was realized with N-substituted tetrahydroisoquinolines and electron-deficient olefins. Under the mild conditions, the reaction proceeded smoothly and displayed excellent functional group tolerance, affording 5,6-dihydro-pyrrolo[2,1-a]isoquinolines in good to high yields. This protocol exhibits a broad substrate scope to both N-alkyl tetrahydroisoquinolines and dipolarophile substrates.
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Affiliation(s)
- Zhiyu Xie
- College of Chemical and Materials Engineering, Xuchang University, No. 88, Bayi Road, Xuchang, Henan 461000, P. R. China.
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25
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Hwu JR, Roy A, Panja A, Huang WC, Hu YC, Tan KT, Lin CC, Hwang KC, Hsu MH, Tsay SC. Domino Reaction for the Synthesis of Polysubstituted Pyrroles and Lamellarin R. J Org Chem 2020; 85:9835-9843. [PMID: 32615761 DOI: 10.1021/acs.joc.0c01134] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A three-component annulation reaction was developed for the synthesis of pyrroles, a class of compounds with various properties valuable to biomedical and polymer industries. Treatment of α-silylaryl triflates, Schiff bases, and alkynes generated polysubstituted pyrroles in good yields (61-86%) with regioselectivity. This domino reaction involved completion of five sequential steps in a single flask, which comprised aryne formation through 1,2-elimination, their alkylation by Schiff bases through 1,2-addition, 1,4-intramolecular proton transfer, Hüisgen 1,3-dipolar cycloaddition, and dehydrogenative aromatization. It was then successfully applied as the key step in the synthesis of the natural product lamellarin R. This new reaction represents an efficient, sustainable process for the production of chemical materials.
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Affiliation(s)
- Jih Ru Hwu
- Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan.,Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Animesh Roy
- Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Avijit Panja
- Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Wen-Chieh Huang
- Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan.,Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Yu-Chen Hu
- Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 300, Taiwan.,Department of Chemical Engineering, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Kui-Thong Tan
- Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan.,Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Chun-Cheng Lin
- Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan.,Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Kuo-Chu Hwang
- Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan.,Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Ming-Hua Hsu
- Department of Chemistry, National Changhua University of Education, Changhua County, 500, Taiwan
| | - Shwu-Chen Tsay
- Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan.,Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 300, Taiwan
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26
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Liu S, Ma D, Zhu X, Luo C, Tan H, Ju X, Tan X, Tang X, Huang J, Wang J, Wang X, Cui H. Iron Catalyzed [3+2] Cycloaddition of Tetrahydroisoquinoline: Synthesis of Dihydropyrrolo[2,1‐
a
]isoquinolines. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000211] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Si‐Wei Liu
- Laboratory of Asymmetric Synthesis Chongqing University of Arts and Sciences 319 Honghe Ave. Yongchuan, Chongqing 402160 P. R. China
- Tonichem Pharmaceutical Technology Co., Ltd Huizhou 516008 P. R. China
| | - Dan‐Dan Ma
- Laboratory of Asymmetric Synthesis Chongqing University of Arts and Sciences 319 Honghe Ave. Yongchuan, Chongqing 402160 P. R. China
| | - Xin‐Xin Zhu
- Laboratory of Asymmetric Synthesis Chongqing University of Arts and Sciences 319 Honghe Ave. Yongchuan, Chongqing 402160 P. R. China
| | - Cheng‐Dan Luo
- Laboratory of Asymmetric Synthesis Chongqing University of Arts and Sciences 319 Honghe Ave. Yongchuan, Chongqing 402160 P. R. China
| | - Hui‐Lin Tan
- Laboratory of Asymmetric Synthesis Chongqing University of Arts and Sciences 319 Honghe Ave. Yongchuan, Chongqing 402160 P. R. China
| | - Xiao‐Li Ju
- Laboratory of Asymmetric Synthesis Chongqing University of Arts and Sciences 319 Honghe Ave. Yongchuan, Chongqing 402160 P. R. China
| | - Xue Tan
- Laboratory of Asymmetric Synthesis Chongqing University of Arts and Sciences 319 Honghe Ave. Yongchuan, Chongqing 402160 P. R. China
| | - Xiao‐Hui Tang
- Laboratory of Asymmetric Synthesis Chongqing University of Arts and Sciences 319 Honghe Ave. Yongchuan, Chongqing 402160 P. R. China
| | - Jie Huang
- Laboratory of Asymmetric Synthesis Chongqing University of Arts and Sciences 319 Honghe Ave. Yongchuan, Chongqing 402160 P. R. China
| | - Jia Wang
- Laboratory of Asymmetric Synthesis Chongqing University of Arts and Sciences 319 Honghe Ave. Yongchuan, Chongqing 402160 P. R. China
| | - Xian‐Xun Wang
- Tonichem Pharmaceutical Technology Co., Ltd Huizhou 516008 P. R. China
| | - Hai‐Lei Cui
- Laboratory of Asymmetric Synthesis Chongqing University of Arts and Sciences 319 Honghe Ave. Yongchuan, Chongqing 402160 P. R. China
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27
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Morikawa D, Morii K, Yasuda Y, Mori A, Okano K. Convergent Total Synthesis of Lamellarins and Their Congeners. J Org Chem 2020; 85:8603-8617. [PMID: 32462869 DOI: 10.1021/acs.joc.0c00998] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A convergent total synthesis of lamellarins S and Z is described. The synthesis features a halogen dance of an easily accessible α,β-dibromopyrrole promoted by an ester moiety. The resultant β,β'-dibromopyrrole undergoes a ligand-controlled Suzuki-Miyaura coupling to provide a range of diarylated pyrrole derivatives. The established synthetic method was also applicable to the synthesis of ningalin B and lukianols A and B.
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Affiliation(s)
- Daiki Morikawa
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
| | - Kazuki Morii
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
| | - Yuto Yasuda
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
| | - Atsunori Mori
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan.,Research Center for Membrane and Film Technology, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
| | - Kentaro Okano
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
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28
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Klintworth R, de Koning CB, Michael JP. Practical Decagram-Scale Synthesis of a Lamellarin Analogue and Deprotection of Lamellarin Isopropyl Ethers. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000499] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Robin Klintworth
- Molecular Sciences Institute; School of Chemistry; University of the Witwatersrand; PO Wits 2050 Johannesburg South Africa
| | - Charles B. de Koning
- Molecular Sciences Institute; School of Chemistry; University of the Witwatersrand; PO Wits 2050 Johannesburg South Africa
| | - Joseph P. Michael
- Molecular Sciences Institute; School of Chemistry; University of the Witwatersrand; PO Wits 2050 Johannesburg South Africa
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29
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Golantsov NE, Golubenkova AS, Festa AA, Varlamov AV, Voskressensky LG. A Domino Route toward Polysubstituted Pyrroles from 2-Imidazolines and Electron-Deficient Alkynes. Org Lett 2020; 22:4726-4731. [DOI: 10.1021/acs.orglett.0c01530] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nikita E. Golantsov
- Organic Chemistry Department, Science Faculty, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, Moscow 117198, Russia
| | - Alexandra S. Golubenkova
- Organic Chemistry Department, Science Faculty, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, Moscow 117198, Russia
| | - Alexey A. Festa
- Organic Chemistry Department, Science Faculty, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, Moscow 117198, Russia
| | - Alexey V. Varlamov
- Organic Chemistry Department, Science Faculty, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, Moscow 117198, Russia
| | - Leonid G. Voskressensky
- Organic Chemistry Department, Science Faculty, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, Moscow 117198, Russia
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30
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Silyanova EA, Samet AV, Salamandra LK, Khrustalev VN, Semenov VV. Formation of 3,4-Diarylpyrrole- and Pyrrolocoumarin Core of Natural Marine Products via Barton-Zard Reaction and Selective O-Demethylation. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000099] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Eugenia A. Silyanova
- N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; 47 Leninsky Prospect 119991 Moscow Russian Federation
| | - Alexander V. Samet
- N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; 47 Leninsky Prospect 119991 Moscow Russian Federation
| | - Lev K. Salamandra
- N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; 47 Leninsky Prospect 119991 Moscow Russian Federation
| | - Victor N. Khrustalev
- N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; 47 Leninsky Prospect 119991 Moscow Russian Federation
- Peoples' Friendship University of Russia (RUDN University); 6 Miklukho-Maklaya Street 117198 Moscow Russian Federation
| | - Victor V. Semenov
- N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; 47 Leninsky Prospect 119991 Moscow Russian Federation
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31
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Lamellarin alkaloids: Isolation, synthesis, and biological activity. THE ALKALOIDS. CHEMISTRY AND BIOLOGY 2020; 83:1-112. [PMID: 32098648 DOI: 10.1016/bs.alkal.2019.10.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Lamellarins are marine alkaloids containing fused 14-phenyl-6H-[1]benzopyrano[4',3':4,5]pyrrolo[2,1-a]isoquinoline or non-fused 3,4-diarylpyrrole-2-carboxylate ring systems. To date, more than 50 lamellarins have been isolated from a variety of marine organisms, such as mollusks, tunicates, and sponges. Many of them, especially fused type I lamellarins, exhibit impressive biological activity, such as potent cytotoxicity, topoisomerase I inhibition, protein kinases inhibition, and anti-HIV-1 activity. Due to their useful biological activity and limited availability from natural sources, a number of synthetic methods have been developed. In this chapter, we present an updated and comprehensive review on lamellarin alkaloids summarizing their isolation, synthesis, and biological activity.
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32
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Nie B, Wu W, Zhang Y, Jiang H, Zhang J. Recent advances in the synthesis of bridgehead (or ring-junction) nitrogen heterocycles via transition metal-catalyzed C–H bond activation and functionalization. Org Chem Front 2020. [DOI: 10.1039/d0qo00510j] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
An update on recent advances in the synthesis of bridgehead nitrogen fused heterocycles via transition metal-catalyzed C–H activation and functionalization is reported.
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Affiliation(s)
- Biao Nie
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- China
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- China
| | - Yingjun Zhang
- State Key Laboratory of Anti-Infective Drug Development (NO. 2015DQ780357)
- Sunshine Lake Pharma Co
- Ltd
- HEC R&D Center
- Dongguan, 523871
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- China
| | - Ji Zhang
- State Key Laboratory of Anti-Infective Drug Development (NO. 2015DQ780357)
- Sunshine Lake Pharma Co
- Ltd
- HEC R&D Center
- Dongguan, 523871
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33
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Wanner MJ, Zuidinga E, Tromp DS, Vilím J, Jørgensen SI, van Maarseveen JH. Synthetic Evidence of the Amadori-Type Alkylation of Biogenic Amines by the Neurotoxic Metabolite Dopegal. J Org Chem 2019; 85:1202-1207. [PMID: 31841007 PMCID: PMC6970265 DOI: 10.1021/acs.joc.9b01948] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
![]()
The neurotransmitter metabolite 3,4-dihydroxy-phenylglycolaldehyde
(dopegal) damages neurons and the myocardium by protein cross-linking,
resulting in conglomerations and cell death. We investigated this
process on a synthetic scale, leading to the discovery of an Amadori-type
rearrangement of dopegal in the reaction with several amino acids
and neuropeptides. This alkylation also occurs with neurotransmitters,
suggesting an influence of dopegal on neurochemical processes. The
rearrangement occurs readily under physiological conditions.
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Affiliation(s)
- Martin J Wanner
- Van't Hoff Institute for Molecular Sciences , University of Amsterdam , Science Park 904 , 1098 XH Amsterdam , The Netherlands
| | - Ed Zuidinga
- Van't Hoff Institute for Molecular Sciences , University of Amsterdam , Science Park 904 , 1098 XH Amsterdam , The Netherlands
| | - Dorette S Tromp
- Van't Hoff Institute for Molecular Sciences , University of Amsterdam , Science Park 904 , 1098 XH Amsterdam , The Netherlands
| | - Jan Vilím
- Van't Hoff Institute for Molecular Sciences , University of Amsterdam , Science Park 904 , 1098 XH Amsterdam , The Netherlands
| | - Steen Ingemann Jørgensen
- Van't Hoff Institute for Molecular Sciences , University of Amsterdam , Science Park 904 , 1098 XH Amsterdam , The Netherlands
| | - Jan H van Maarseveen
- Van't Hoff Institute for Molecular Sciences , University of Amsterdam , Science Park 904 , 1098 XH Amsterdam , The Netherlands
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34
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Abbasi M, Zamani Hargalani F, Afrashteh S, Rostamian R. Bio-Fe3O4-MNPs catalyzed green synthesis of pyrrolo[2,1-a]isoquinoline derivatives using isoquinolium bromide salts: study of antioxidant activity. CAN J CHEM 2019. [DOI: 10.1139/cjc-2019-0167] [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
In this research, a novel, one-pot, efficient procedure with high yield for the synthesis of pyrrolo[2,1-a]isoquinoline derivatives using multi-component reaction of isoquinoline, alkyl bromides, and triphenylphosphine in the presence of Fe3O4-MNPs as catalyst under solvent-free conditions at room temperature is investigated. This study highlights an easy, simple, rapid, and clean method for the preparation of pyrrolo[2,1-a]isoquinoline derivatives. The Fe3O4-MNPs in these reactions were produced employing a green procedure by reduction of ferric chloride solution with pomegranate peel water extract. Additionally, antioxidant activity was studied for the some newly synthesized compounds such as 5a–5d using the DPPH radical trapping and reducing potential of ferric ion experiments and comparing the results with the results of synthetic antioxidants (2-tert-butylhydroquinone, TBHQ; butylated hydroxytoluene, BHT). As a result, compounds 5a–5d show trace DPPH radical trapping and excellent reducing power of ferric ion.
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Affiliation(s)
- Maryam Abbasi
- Department of Chemistry, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran
| | - Fariba Zamani Hargalani
- Department of Natural Resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Siavash Afrashteh
- Department of Textile Engineering, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran
| | - Rezvaneh Rostamian
- Department of Chemistry, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran
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35
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Kumar V, Awasthi A, Salam A, Khan T. Scalable Total Syntheses of Some Natural and Unnatural Lamellarins: Application of a One-Pot Domino Process for Regioselective Access to the Central 1,2,4-Trisubstituted Pyrrole Core. J Org Chem 2019; 84:11596-11603. [PMID: 31433662 DOI: 10.1021/acs.joc.9b01521] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Short and scalable total syntheses of lamellarin G trimethyl ether, lamellarin D trimethyl ether, lamellarin H, lamellarin η, dihydrolamellarin η, and lamellarin U have been realized in four to six linear steps with an overall yield of ≤22%. Highlights of the synthesis include single-step access to the central 1,2,4-trisubstituted pyrrole core in a highly regioselective manner via a one-pot [3+2] cycloaddition/elimination/aromatization sequence-based domino process. Subsequent, palladium-mediated double C-H oxidative coupling in a single-pot operation provides access to the pentacyclic coumarin-fused pyrrolo-dihydroisoquinoline core present in lamellarins.
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Affiliation(s)
- Virendra Kumar
- Organic Synthesis Laboratory, School of Basic Sciences , Indian Institute of Technology Bhubaneswar , Argul, Khurdha 752050 , Odisha , India
| | - Annapurna Awasthi
- Organic Synthesis Laboratory, School of Basic Sciences , Indian Institute of Technology Bhubaneswar , Argul, Khurdha 752050 , Odisha , India
| | - Abdus Salam
- Organic Synthesis Laboratory, School of Basic Sciences , Indian Institute of Technology Bhubaneswar , Argul, Khurdha 752050 , Odisha , India
| | - Tabrez Khan
- Organic Synthesis Laboratory, School of Basic Sciences , Indian Institute of Technology Bhubaneswar , Argul, Khurdha 752050 , Odisha , India
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36
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Cui H, Jiang L, Tan H, Liu S. Direct Synthesis of Dihydropyrrolo[2,1‐
a
]Isoquinolines through FeCl
3
Promoted Oxidative Aromatization. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900756] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Hai‐Lei Cui
- Laboratory of Asymmetric SynthesisChongqing University of Arts and Sciences 319 Honghe Ave. Yongchuan, Chongqing 402160 People's Republic of China
| | - Lu Jiang
- Laboratory of Asymmetric SynthesisChongqing University of Arts and Sciences 319 Honghe Ave. Yongchuan, Chongqing 402160 People's Republic of China
| | - Hao Tan
- Laboratory of Asymmetric SynthesisChongqing University of Arts and Sciences 319 Honghe Ave. Yongchuan, Chongqing 402160 People's Republic of China
| | - Si Liu
- Laboratory of Asymmetric SynthesisChongqing University of Arts and Sciences 319 Honghe Ave. Yongchuan, Chongqing 402160 People's Republic of China
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37
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Kumar V, Awasthi A, Metya A, Khan T. A Metal-Free Domino Process for Regioselective Synthesis of 1,2,4-Trisubstituted Pyrroles: Application toward the Formal Synthesis of Ningalin B. J Org Chem 2019; 84:11581-11595. [DOI: 10.1021/acs.joc.9b01520] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Virendra Kumar
- Organic Synthesis Laboratory, School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Argul, Khurdha 752050, Odisha, India
| | - Annapurna Awasthi
- Organic Synthesis Laboratory, School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Argul, Khurdha 752050, Odisha, India
| | - Abhisek Metya
- Organic Synthesis Laboratory, School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Argul, Khurdha 752050, Odisha, India
| | - Tabrez Khan
- Organic Synthesis Laboratory, School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Argul, Khurdha 752050, Odisha, India
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38
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Wu CK, Weng Z, Yang DY. One-Pot Construction of 1-Phenylchromeno[3,4- b]pyrrol-4(3 H)-one: Application to Total Synthesis of Ningalin B and a Pyrrolocoumarin-Based Electrochromic Switch. Org Lett 2019; 21:5225-5228. [PMID: 31247749 DOI: 10.1021/acs.orglett.9b01830] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
An efficient construction of 1-phenylchromeno[3,4- b]pyrrol-4(3 H)-one via coupling of 1-styrylpyrrolidine and 4-chloro-3-nitrocoumarin as a key step is reported. This reaction is further applied to the total synthesis of the natural product ningalin B in five linear steps with an overall yield of 41.5% and a pyrrolocoumarin-based electrochromic switch.
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Affiliation(s)
- Chun-Ku Wu
- Department of Chemistry, College of Science , Tunghai University , Taichung 40704 , Taiwan
| | - Zhiqiang Weng
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry , Fuzhou University , Fujian 350108 , China
| | - Ding-Yah Yang
- Department of Chemistry, College of Science , Tunghai University , Taichung 40704 , Taiwan
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39
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Base-promoted [3+2] cycloaddition/aromatization cascade reaction under air: An approach to access perfluoroalkylated pyrrolo[2,1-a]isoquinolines. J Fluor Chem 2019. [DOI: 10.1016/j.jfluchem.2019.04.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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40
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Shirley HJ, Koyioni M, Muncan F, Donohoe TJ. Synthesis of lamellarin alkaloids using orthoester-masked α-keto acids. Chem Sci 2019; 10:4334-4338. [PMID: 31057760 PMCID: PMC6471603 DOI: 10.1039/c8sc05678a] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 03/07/2019] [Indexed: 12/20/2022] Open
Abstract
Enolate arylation of a protected pyruvate is used as a key step in the short and efficient syntheses of the lamellarins.
Pyruvic acid and other α-keto acids are frequently encountered as intermediates in metabolic pathways, yet their application in total synthesis has met with limited success. In this work, we present a bioinspired strategy that utilizes highly functionalized OBO (oxabicyclo[2.2.2]octyl) orthoester masked α-ketoacids as key intermediates for the construction of both type I and II lamellarin alkaloids. Lamellarin D was synthesized, via a key 1,4-dicarbonyl, in 7 steps and 22% yield from pyruvic acid. Key steps in the synthesis involve one-pot double enolate functionalisation of 1 followed by double annulation to form the target pyrrole/N-vinyl pyrrole core and late-stage direct C–H arylation. Lastly, a novel OBO-masked β-cyano ketone, synthesized from 1, proved to be a valuable intermediate for construction of the type II lamellarin core via HBr-mediated cyclisation. In this way, lamellarin Q was synthesized in 7 steps and 20% yield from pyruvic acid.
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Affiliation(s)
- Harry J Shirley
- Department of Chemistry , University of Oxford , Chemistry Research Laboratory , Mansfield Road , Oxford , OX1 3TA , UK .
| | - Maria Koyioni
- Department of Chemistry , University of Oxford , Chemistry Research Laboratory , Mansfield Road , Oxford , OX1 3TA , UK .
| | - Filip Muncan
- Department of Chemistry , University of Oxford , Chemistry Research Laboratory , Mansfield Road , Oxford , OX1 3TA , UK .
| | - Timothy J Donohoe
- Department of Chemistry , University of Oxford , Chemistry Research Laboratory , Mansfield Road , Oxford , OX1 3TA , UK .
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41
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Colligs VC, Dialer C, Opatz T. Synthesis of Lamellarin G Trimethyl Ether by von Miller-Plöchl-Type Cyclocondensation. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800611] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Vanessa C. Colligs
- Institute of Organic Chemistry; University of Mainz; Duesbergweg 10-14 55128 Mainz Germany
| | - Clemens Dialer
- Institute of Organic Chemistry; University of Mainz; Duesbergweg 10-14 55128 Mainz Germany
| | - Till Opatz
- Institute of Organic Chemistry; University of Mainz; Duesbergweg 10-14 55128 Mainz Germany
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42
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Chiu HC, Tonks IA. Trimethylsilyl-Protected Alkynes as Selective Cross-Coupling Partners in Titanium-Catalyzed [2+2+1] Pyrrole Synthesis. Angew Chem Int Ed Engl 2018; 57:6090-6094. [PMID: 29573100 DOI: 10.1002/anie.201800595] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Indexed: 11/05/2022]
Abstract
Trimethylsilyl (TMS)-protected alkynes served as selective alkyne cross-coupling partners in titanium-catalyzed [2+2+1] pyrrole synthesis. Reactions of TMS-protected alkynes with internal alkynes and azobenzene under the catalysis of titanium imido complexes yielded pentasubstituted 2-TMS-pyrroles with greater than 90 % selectivity over the other nine possible pyrrole products. The steric and electronic effects of the TMS group were both identified to play key roles in this highly selective pyrrole synthesis. This strategy provides a convenient method to synthesize multisubstituted pyrroles as well as an entry point for further pyrrole diversification through facile modification of the resulting 2-silyl pyrrole products, as demonstrated through a short formal synthesis of the marine natural product lamellarin R.
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Affiliation(s)
- Hsin-Chun Chiu
- Department of Chemistry, University of Minnesota-Twin Cities, 207 Pleasant Sreet SE, Minneapolis, MN, 55455, USA
| | - Ian A Tonks
- Department of Chemistry, University of Minnesota-Twin Cities, 207 Pleasant Sreet SE, Minneapolis, MN, 55455, USA
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43
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Chiu H, Tonks IA. Trimethylsilyl‐Protected Alkynes as Selective Cross‐Coupling Partners in Titanium‐Catalyzed [2+2+1] Pyrrole Synthesis. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201800595] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Hsin‐Chun Chiu
- Department of Chemistry University of Minnesota—Twin Cities 207 Pleasant Sreet SE Minneapolis MN 55455 USA
| | - Ian A. Tonks
- Department of Chemistry University of Minnesota—Twin Cities 207 Pleasant Sreet SE Minneapolis MN 55455 USA
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44
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Belal M, Khan AT. Iodine-Catalyzed Synthesis of Pyrrolo(2,3-c
)coumarin Derivatives Using 3-Aminocoumarins, Arylglyoxals and 4-Hydroxycoumarin through One-Pot Three-Component Reaction. ChemistrySelect 2018. [DOI: 10.1002/slct.201702629] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Md. Belal
- Department of Chemistry; Indian Institute of Technology Guwahati, Guwahati; Assam-781039 India
| | - Abu T. Khan
- Department of Chemistry; Indian Institute of Technology Guwahati, Guwahati; Assam-781039 India
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45
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Srinivasulu V, Sieburth SM, El-Awady R, Kariem NM, Tarazi H, O'Connor MJ, Al-Tel TH. Post-Ugi Cascade Transformations for Accessing Diverse Chromenopyrrole Collections. Org Lett 2018; 20:836-839. [PMID: 29327591 DOI: 10.1021/acs.orglett.7b03986] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Employing a build/couple/pair strategy, a serendipitous one-pot protocol for the diastereoselective construction of diverse collections of chromenopyrroles is described. This methodology features an unprecedented five-step cascade including azomethine ylide generation followed by in situ intramolecular [3 + 2]-cycloaddition. Furthermore, this protocol was extended to access enantiopure chromenopyrroles using amino acids as chiral auxiliary. Moreover, postpairing reactions were employed to increase the diversity and complexity of our pilot compound collections.
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Affiliation(s)
| | - Scott McN Sieburth
- Department of Chemistry, Temple University , 201 Beury Hall, Philadelphia, Pennsylvania 19122, United States
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46
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Karami B, Farahi M, Akrami S, Elhamifar D. Tungstic acid-functionalized MCM-41 as a novel mesoporous solid acid catalyst for the one-pot synthesis of new pyrrolo[2,1-a]isoquinolines. NEW J CHEM 2018. [DOI: 10.1039/c8nj02699h] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Tungstic acid-functionalized MCM-41 (MCM-41–HWO4) was prepared, characterized and applied as a reusable mesoporous catalyst for the one-pot synthesis of new pyrrolo[2,1-a]isoquinoline derivatives.
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47
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Olivier WJ, Smith JA, Bissember AC. Methods for the synthesis of annulated pyrroles via cyclisation strategies. Org Biomol Chem 2018; 16:1216-1226. [DOI: 10.1039/c7ob03144k] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
In this report, we review the methods that have been employed to synthesise annulated pyrroles.
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Affiliation(s)
- Wesley J. Olivier
- School of Physical Sciences – Chemistry
- University of Tasmania
- Hobart
- Australia
| | - Jason A. Smith
- School of Physical Sciences – Chemistry
- University of Tasmania
- Hobart
- Australia
| | - Alex C. Bissember
- School of Physical Sciences – Chemistry
- University of Tasmania
- Hobart
- Australia
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48
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Zavala-Gómez H, Ramírez-Rodríguez A, Vázquez A. Synthesis of Non-Symmetrical 3,4-Diaryl-Substituted Pyrroles: Implementation for the Preparation of Lamellarin R. JOURNAL OF CHEMICAL RESEARCH 2017. [DOI: 10.3184/174751917x15105690662863] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A straightforward method for synthesising symmetrical and non-symmetrical 3,4-diaryl-substituted pyrroles is proposed, consisting of (i) the condensation reaction between phenylacetonitriles and aldehydes to give acrylonitriles, (ii) the conjugate addition of cyanide to afford succinonitriles, and (iii) reduction of the succinonitriles with DIBAL-H to provide the target pyrroles in good overall yields. The implementation of this technology for the preparation of lamellarin R is presented.
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Affiliation(s)
- Héctor Zavala-Gómez
- Departamento de Química Orgánica, Facultad de Química, Universidad Nacional Autónoma de México, Circuito Interior S/N, Ciudad Universitaria, 04510, CDMX, México
| | - Armando Ramírez-Rodríguez
- Departamento de Química Orgánica, Facultad de Química, Universidad Nacional Autónoma de México, Circuito Interior S/N, Ciudad Universitaria, 04510, CDMX, México
| | - Alfredo Vázquez
- Departamento de Química Orgánica, Facultad de Química, Universidad Nacional Autónoma de México, Circuito Interior S/N, Ciudad Universitaria, 04510, CDMX, México
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49
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Zheng K, Zhuang S, You M, Shu W, Wu A, Wu Y. Benzoic Acid-Promoted Intermolecular [3+2] Cycloaddition with Air as the Terminal Oxidant: General Approach toward Pyrrolo[2, 1-a
]isoquinolines. ChemistrySelect 2017. [DOI: 10.1002/slct.201702044] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Kailu Zheng
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education; College of Chemistry, Central China Normal University, Hubei; Wuhan 430079 P. R. China
| | - Shiyi Zhuang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education; College of Chemistry, Central China Normal University, Hubei; Wuhan 430079 P. R. China
| | - Minqi You
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education; College of Chemistry, Central China Normal University, Hubei; Wuhan 430079 P. R. China
| | - Wenming Shu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education; College of Chemistry, Central China Normal University, Hubei; Wuhan 430079 P. R. China
| | - Anxin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education; College of Chemistry, Central China Normal University, Hubei; Wuhan 430079 P. R. China
| | - Yandong Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education; College of Chemistry, Central China Normal University, Hubei; Wuhan 430079 P. R. China
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50
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Delaye PO, Petrignet J, Thiery E, Thibonnet J. Gold-silver catalyzed straightforward one pot synthesis of pyrano[3,4-b]pyrrol-7(1H)-ones. Org Biomol Chem 2017; 15:7290-7295. [PMID: 28850145 DOI: 10.1039/c7ob01849e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pyrano[3,4-b]pyrrol-7(1H)-one is a bicyclic structure that is rarely described in the literature but is found in numerous polycyclic natural products as lamellarins. This work presents a one-pot synthesis of pyrano[3,4-b]pyrrol-7(1H)-one substituted in the 2- and 5-position. The reaction proceeds via a one-pot two step 5-endo-dig and 6-endo-dig cyclization catalyzed by a cationic gold complex with high regioselectivity.
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Affiliation(s)
- P-O Delaye
- Laboratoire Infectiologie Santé Publique - Equipe de Recherche et Innovation en Chimie Médicinale, UMR-UFR INRA 1282, Faculté des Sciences et Techniques de Tours, Parc de Grandmont, 37200 Tours, France.
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