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Das AJ, Das SK. Base-Mediated, Chemo- and Regioselective (4+2) Annulation of Indole-2-carboxamides with 2,3-Epoxy Tosylates toward 1,2-Fused Indoles. J Org Chem 2023. [PMID: 37289967 DOI: 10.1021/acs.joc.3c00813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Base-mediated [4+2] annulation of indole-2-carboxamides with 2,3-epoxy tosylates has been explored. The protocol delivers 3-substituted pyrazino[1,2-a]indol-1-ones in high yields in diastereoselective fashion, and neither 4-substituted pyrazino[1,2-a]indol-1-ones nor tetrahydro-1H-[1,4]diazepino[1,2-a]indol-1-ones are generated, irrespective of whether the distal epoxide C3 substituent is alkyl or aryl, or the epoxide is cis- or trans-configured. This reaction proceeds in one pot via N-alkylation of the indole scaffold with 2,3-epoxy tosylates, concomitantly followed by 6-exo-selective epoxide-opening cyclization. Notably, the process is chemo- and regioselective with respect to both the starting materials. To our knowledge, the process represents the first successful example of one-pot annulation of indole-based diheteronucleophiles with epoxide-based dielectrophiles.
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Affiliation(s)
- Arup Jyoti Das
- Department of Chemical Sciences, Tezpur University, Napaam, Sonitpur, Assam 784028, India
| | - Sajal Kumar Das
- Department of Chemical Sciences, Tezpur University, Napaam, Sonitpur, Assam 784028, India
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2
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Tajik M, Shiri M, Hussain FHS, Lotfi Nosood Y, Baeiszadeh B, Amini Z, Bikas R, Pyra A. Highly regioselective and diastereoselective synthesis of novel pyrazinoindolones via a base-mediated Ugi- N-alkylation sequence. RSC Adv 2023; 13:16963-16969. [PMID: 37288378 PMCID: PMC10243185 DOI: 10.1039/d3ra02065g] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 05/24/2023] [Indexed: 06/09/2023] Open
Abstract
An efficient base-mediated/metal-free approach has been developed for the synthesis of 1-oxo-1,2,3,4-tetrahydropyrazino[1,2-a]indole-3-carboxamide derivatives via intramolecular indole N-H alkylation of novel bis-amide Ugi-adducts. In this protocol the Ugi reaction of (E)-cinnamaldehyde derivatives, 2-chloroaniline, indole-2-carboxylic acid and different isocyanides was designed for the preparation of bis-amides. The main highlight of this study is the practical and highly regioselective preparation of new polycyclic functionalized pyrazino derivatives. This system is facilitated by Na2CO3 mediation in DMSO and 100 °C conditions.
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Affiliation(s)
- Maryam Tajik
- Department of Organic Chemistry, Faculty of Chemistry, Alzahra University Vanak Tehran 1993893973 Iran
| | - Morteza Shiri
- Department of Organic Chemistry, Faculty of Chemistry, Alzahra University Vanak Tehran 1993893973 Iran
| | - Faiq H S Hussain
- Medical Analysis Department, Applied Science Faculty, Tishk International University Erbil Kurdistan Region Iraq
| | - Yazdanbakhsh Lotfi Nosood
- Department of Organic Chemistry, Faculty of Chemistry, Alzahra University Vanak Tehran 1993893973 Iran
| | - Behnaz Baeiszadeh
- Department of Organic Chemistry, Faculty of Chemistry, Alzahra University Vanak Tehran 1993893973 Iran
| | - Zahra Amini
- Department of Organic Chemistry, Faculty of Chemistry, Alzahra University Vanak Tehran 1993893973 Iran
| | - Rahman Bikas
- Department of Chemistry, Faculty of Science, Imam Khomeini International University Qazvin 34148-96818 Iran
| | - Anna Pyra
- Faculty of Chemistry, University of Wrocław 14 Joliot-Curie 50-383 Wroclaw Poland
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3
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Zhang K, Tran C, Alami M, Hamze A, Provot O. Synthesis and Biological Activities of Pyrazino[1,2- a]indole and Pyrazino[1,2- a]indol-1-one Derivatives. Pharmaceuticals (Basel) 2021; 14:ph14080779. [PMID: 34451876 PMCID: PMC8399128 DOI: 10.3390/ph14080779] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/05/2021] [Accepted: 08/06/2021] [Indexed: 01/14/2023] Open
Abstract
This review concerns the synthesis and biological activities of pyrazino[1,2-a]indoles and pyrazino[1,2-a]indol-1-ones reported since 1997 and the discovery of biological activity of pyrazinoindole derivatives. In the first part, we first presented the synthetic routes that have been reported from a methodological point of view to access the pyrazinoindole unit according to cyclization reactions using or not using metal catalysts. Then, syntheses and neuropsychiatric, auto-immune, anti-infectious and anti-cancer properties of pyrazinoindoles were detailed. In the second part, we first reported the main accesses to pyrazinoindol-1-one substrates according to Michael reactions, metal-catalyzed and metal-free cyclization reactions. The syntheses and anti-cancer, anti-infectious, anti-allergenic and neuropsychiatric properties of pyrazinoindolones were next described and discussed.
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Guarnieri-Ibáñez A, de Aguirre A, Besnard C, Poblador-Bahamonde AI, Lacour J. Regiodivergent synthesis of pyrazino-indolines vs. triazocines via α-imino carbenes addition to imidazolidines. Chem Sci 2020; 12:1479-1485. [PMID: 34163911 PMCID: PMC8179195 DOI: 10.1039/d0sc05725h] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Hexahydropyrazinoindoles were prepared in a single step from N-sulfonyl triazoles and imidazolidines. Under dirhodium catalysis, α-imino carbenes were generated and formed nitrogen ylide intermediates that, after subsequent aminal opening, afforded the pyrazinoindoles predominantly via formal [1,2]-Stevens and tandem Friedel–Crafts cyclizations. Of mechanistic importance, a regiodivergent reactivity was engineered through the use of a specific unsymmetrically substituted imidazolidine that promoted the exclusive formation of 8-membered ring 1,3,6-triazocines. Based on DFT calculations, an original Curtin–Hammett-like situation was demonstrated for the mechanism. Further derivatizations led to functionalized tetrahydropyrazinoindoles in high yields. Hexahydropyrazinoindoles are prepared in a single step from N-sulfonyl triazoles and imidazolidines. Of mechanistic importance, a regiodivergent reactivity can be engineered towards the exclusive formation of 8-membered ring 1,3,6-triazocines.![]()
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Affiliation(s)
- Alejandro Guarnieri-Ibáñez
- Department of Organic Chemistry, University of Geneva Quai Ernest Ansermet 30, 1211 Geneva 4 Switzerland
| | - Adiran de Aguirre
- Department of Organic Chemistry, University of Geneva Quai Ernest Ansermet 30, 1211 Geneva 4 Switzerland
| | - Céline Besnard
- Laboratory of Crystallography, University of Geneva Quai Ernest Ansermet 24, 1211 Geneva 4 Switzerland
| | | | - Jérôme Lacour
- Department of Organic Chemistry, University of Geneva Quai Ernest Ansermet 30, 1211 Geneva 4 Switzerland
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6
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Festa AA, Zalte RR, Golantsov NE, Varlamov AV, Van der Eycken EV, Voskressensky LG. DBU-Catalyzed Alkyne–Imidate Cyclization toward 1-Alkoxypyrazino[1,2-a]indole Synthesis. J Org Chem 2018; 83:9305-9311. [DOI: 10.1021/acs.joc.8b01279] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Alexey A. Festa
- Peoples’ Friendship University of Russia (RUDN University), Miklukho-Maklaya Street 6, Moscow 117198, Russian Federation
| | - Rajesh R. Zalte
- Peoples’ Friendship University of Russia (RUDN University), Miklukho-Maklaya Street 6, Moscow 117198, Russian Federation
| | - Nikita E. Golantsov
- Peoples’ Friendship University of Russia (RUDN University), Miklukho-Maklaya Street 6, Moscow 117198, Russian Federation
| | - Alexey V. Varlamov
- Peoples’ Friendship University of Russia (RUDN University), Miklukho-Maklaya Street 6, Moscow 117198, Russian Federation
| | - Erik V. Van der Eycken
- Peoples’ Friendship University of Russia (RUDN University), Miklukho-Maklaya Street 6, Moscow 117198, Russian Federation
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, University of Leuven (KU Leuven), Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Leonid G. Voskressensky
- Peoples’ Friendship University of Russia (RUDN University), Miklukho-Maklaya Street 6, Moscow 117198, Russian Federation
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Youssif BG, Abdelrahman MH, Abdelazeem AH, abdelgawad MA, Ibrahim HM, Salem OI, Mohamed MF, Treambleau L, Bukhari SNA. Design, synthesis, mechanistic and histopathological studies of small-molecules of novel indole-2-carboxamides and pyrazino[1,2-a]indol-1(2H)-ones as potential anticancer agents effecting the reactive oxygen species production. Eur J Med Chem 2018; 146:260-273. [DOI: 10.1016/j.ejmech.2018.01.042] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2017] [Revised: 12/26/2017] [Accepted: 01/14/2018] [Indexed: 12/22/2022]
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8
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Navo CD, Mazo N, Avenoza A, Busto JH, Peregrina JM, Jiménez-Osés G. Substituent Effects on the Reactivity of Cyclic Tertiary Sulfamidates. J Org Chem 2017; 82:13250-13255. [DOI: 10.1021/acs.joc.7b02352] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Claudio D. Navo
- Departamento de Química, Centro de Investigación en Síntesis Química, Universidad de La Rioja, 26006 Logroño, La Rioja, Spain
| | - Nuria Mazo
- Departamento de Química, Centro de Investigación en Síntesis Química, Universidad de La Rioja, 26006 Logroño, La Rioja, Spain
| | - Alberto Avenoza
- Departamento de Química, Centro de Investigación en Síntesis Química, Universidad de La Rioja, 26006 Logroño, La Rioja, Spain
| | - Jesús H. Busto
- Departamento de Química, Centro de Investigación en Síntesis Química, Universidad de La Rioja, 26006 Logroño, La Rioja, Spain
| | - Jesús M. Peregrina
- Departamento de Química, Centro de Investigación en Síntesis Química, Universidad de La Rioja, 26006 Logroño, La Rioja, Spain
| | - Gonzalo Jiménez-Osés
- Departamento de Química, Centro de Investigación en Síntesis Química, Universidad de La Rioja, 26006 Logroño, La Rioja, Spain
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10
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Gieuw MH, Ke Z, Yeung YY. Lewis Base Catalyzed Stereo- and Regioselective Bromocyclization. CHEM REC 2016; 17:287-311. [PMID: 27701807 DOI: 10.1002/tcr.201600088] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2016] [Indexed: 01/01/2023]
Abstract
Oxygen- and nitrogen-containing heterocyclic compounds are widely recognized as key components in many natural products and biologically relevant molecules, but often the problem comes down to methodologies in synthesizing them. Halocyclization of olefinic substrates is a promising strategy in the construction of O- and N-heterocyclic compounds, which further signifies the development of their asymmetric variants. Over the past years, our group has been devoted to this particular area of asymmetric electrophilic halocyclization with chalcogen-containing molecules as catalysts. In this account, the main focus is on the development of our novel chiral catalysts and applications derived from the reaction products.
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Affiliation(s)
- Matthew H Gieuw
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, SAR China
| | - Zhihai Ke
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, SAR China
| | - Ying-Yeung Yeung
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, SAR China
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11
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Zhang K, Xu XH, Qing FL. Copper-Promoted Ritter-Type Trifluoroethoxylation of (Hetero)arenediazonium Tetrafluoroborates: A Method for the Preparation of Trifluoroethyl Imidates. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600941] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Ke Zhang
- College of Chemistry, Chemical Engineering and Biotechnology; Donghua University; 2999 North Renmin Lu 201620 Shanghai P. R. China
| | - Xiu-Hua Xu
- Key Laboratory of Organofluorine Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Science; 345 Lingling Lu 200032 Shanghai P. R. China
| | - Feng-Ling Qing
- College of Chemistry, Chemical Engineering and Biotechnology; Donghua University; 2999 North Renmin Lu 201620 Shanghai P. R. China
- Key Laboratory of Organofluorine Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Science; 345 Lingling Lu 200032 Shanghai P. R. China
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12
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Voievudskyi M, Astakhina V, Kryshchyk O, Petuhova O, Shyshkina S. Synthesis and reactivity of novel pyrrolo[1,2-a]pyrazine derivatives. MONATSHEFTE FUR CHEMIE 2016. [DOI: 10.1007/s00706-015-1619-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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13
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Cheng YA, Yu WZ, Yeung YY. An unexpected Bromolactamization of Olefinic Amides Using a Three-Component Co-catalyst System. J Org Chem 2015; 81:545-52. [PMID: 26679219 DOI: 10.1021/acs.joc.5b02390] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Reaction between (N,N-dimethylamino)pyridine and isocyanate unexpectedly produced a three-component mixture. By using this mixture as an unprecedented three-component catalyst system, a facile and selective bromolactamization of olefinic amides has been developed. The protocol confers enhanced selectivity of N- over O-cyclization, leading to the formation of a structurally diverse range of lactams including both small and medium ring sizes.
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Affiliation(s)
- Yi An Cheng
- Department of Chemistry, National University of Singapore , 3 Science Drive 3, Singapore 117543
| | - Wesley Zongrong Yu
- Department of Chemistry, National University of Singapore , 3 Science Drive 3, Singapore 117543
| | - Ying-Yeung Yeung
- Department of Chemistry, The Chinese University of Hong Kong , Shatin, NT, Hong Kong, China.,Department of Chemistry, National University of Singapore , 3 Science Drive 3, Singapore 117543
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14
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Cheng YA, Yu WZ, Yeung YY. Carbamate-Catalyzed Enantioselective Bromolactamization. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201504724] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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15
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Cheng YA, Yu WZ, Yeung YY. Carbamate-catalyzed enantioselective bromolactamization. Angew Chem Int Ed Engl 2015; 54:12102-6. [PMID: 26314397 DOI: 10.1002/anie.201504724] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Revised: 07/05/2015] [Indexed: 12/17/2022]
Abstract
A highly facile, efficient, and enantioselective bromolactamization of olefinic amides was effected by a carbamate catalyst and ethanol additive. The amide substrates underwent N-cyclization predominantly to give a diverse range of enantioenriched bromolactam products containing up to two stereogenic centers.
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Affiliation(s)
- Yi An Cheng
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543 (Singapore)
| | - Wesley Zongrong Yu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543 (Singapore)
| | - Ying-Yeung Yeung
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543 (Singapore). .,Department of Chemistry, The Chinese University of Hong Kong, Shatin, Hong Kong (China).
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Mahdavi M, Hassanzadeh-Soureshjan R, Saeedi M, Ariafard A, BabaAhmadi R, Ranjbar PR, Shafiee A. Experimental and computational evidence for KOt-Bu-promoted synthesis of oxopyrazino[1,2-a]indoles. RSC Adv 2015. [DOI: 10.1039/c5ra17056g] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Metal-free intramolecular hydroamination of some Ugi adducts in the presence of KOt-Bu in DMF at room temperature led to the formation of novel oxopyrazino[1,2-a]indole derivatives.
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Affiliation(s)
- Mohammad Mahdavi
- Department of Medicinal Chemistry
- Faculty of Pharmacy and Pharmaceutical Sciences Research Center
- Tehran University of Medical Sciences
- Tehran
- Iran
| | | | - Mina Saeedi
- Medicinal Plants Research Center
- Faculty of Pharmacy
- Tehran University of Medical Sciences
- Tehran
- Iran
| | - Alireza Ariafard
- School of Physical Sciences (Chemistry)
- University of Tasmania
- Private Bag 75
- Hobart TAS 7001
- Australia
| | - Rasool BabaAhmadi
- Department of Chemistry
- Faculty of Science
- Central Tehran Branch
- Islamic Azad University
- Shahrak Gharb
| | | | - Abbas Shafiee
- Department of Medicinal Chemistry
- Faculty of Pharmacy and Pharmaceutical Sciences Research Center
- Tehran University of Medical Sciences
- Tehran
- Iran
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