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Zhang Y, Lei Y, Zhang K, Hu Q, Chang M, Hu Y. Single-Pot Reaction of Novel Fused Indolizine Derivatives. Org Lett 2024; 26:8267-8271. [PMID: 39297537 DOI: 10.1021/acs.orglett.4c02882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2024]
Abstract
An unprecedented fused hexacyclic indolizine derivative generated by a single-pot reaction has been developed. This model overcomes the use of catalysts, inefficient atom economy, low yields, and limitations of lengthy steps. Density functional theory calculations reveal the reaction mechanism in which the oxygen molecule plays a crucial role in trapping the penultimate zwitterionic or biradical intermediate to generate the observed products.
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Affiliation(s)
- Yajuan Zhang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, State Laboratory Cultivation Base, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, China
| | - Yu Lei
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, State Laboratory Cultivation Base, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, China
| | - Ke Zhang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, State Laboratory Cultivation Base, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, China
| | - Qiong Hu
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, State Laboratory Cultivation Base, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, China
| | - Meng Chang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, State Laboratory Cultivation Base, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, China
| | - Yimin Hu
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, State Laboratory Cultivation Base, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, China
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2
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da Silva TS, da Silva Souza M, Andricopulo AD, Coelho F. Discovery of indolizine lactones as anticancer agents and their optimization through late-stage functionalization. RSC Adv 2023; 13:20264-20270. [PMID: 37416908 PMCID: PMC10321224 DOI: 10.1039/d3ra03395c] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Accepted: 06/26/2023] [Indexed: 07/08/2023] Open
Abstract
Indolizines fused with a seven-member lactone ring were identified as a promising scaffold in the search for new anticancer agents. Through a modular synthetic sequence, a library of cis and trans indolizines lactones had their antiproliferative activity evaluated against hormone-refractory prostate DU-145 and triple-negative breast MDA-MB-231 cancer cell lines. A methoxylated analogue was identified as an initial hit against MDA-MB-231 and late-stage functionalization of the indolizine core led to analogues within potencies up to twenty times higher than the parent precursor.
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Affiliation(s)
- Thiago Sabino da Silva
- Laboratory of Synthesis of Natural Products and Drugs, Institute of Chemistry, University of Campinas Rua Monteiro Lobato, S/N, 13083-970, Campinas São Paulo Brazil
| | - Matheus da Silva Souza
- Laboratory of Medicinal and Computational Chemistry, Institute of Physics of Sao Carlos, University of Sao Paulo - Avenida Joao Dagnone 1100-13563-120 - Sao Carlos SP Brazil
| | - Adriano Defini Andricopulo
- Laboratory of Medicinal and Computational Chemistry, Institute of Physics of Sao Carlos, University of Sao Paulo - Avenida Joao Dagnone 1100-13563-120 - Sao Carlos SP Brazil
| | - Fernando Coelho
- Laboratory of Synthesis of Natural Products and Drugs, Institute of Chemistry, University of Campinas Rua Monteiro Lobato, S/N, 13083-970, Campinas São Paulo Brazil
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3
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Antón‐Cánovas T, Alonso F. The Eschenmoser's Salt as a Formylation Agent for the Synthesis of Indolizinecarbaldehydes and Their Use for Colorimetric Nitrite Detection. Angew Chem Int Ed Engl 2023; 62:e202215916. [PMID: 36448641 PMCID: PMC10108028 DOI: 10.1002/anie.202215916] [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: 10/31/2022] [Revised: 11/29/2022] [Accepted: 11/30/2022] [Indexed: 12/02/2022]
Abstract
C-H bond formylation is the most immediate way to incorporate the versatile formyl group into (hetero)aromatics. However, the type of reagents and severe conditions involved in the classical formylation methods often curtail their application, especially in the presence of other functional groups. Herein, we present the Eschenmoser's salt, a commercially available (dimethylamino)methylating chemical, as a useful reagent for the C-H formylation of indolizines and other compounds. The method is straightforward and mild, furnishing indolizinecarbaldehydes in modest-to-good yields with exclusive and remote regioselectivity. Furthermore, these compounds can be easily transformed into push-pull dyes and are highly selective in the colorimetric detection of nitrite, a substance extensively employed as preservative in the food industry, the concentration of which is crucial to control to prevent harmful effects in living organisms. The assay is simple, allowing the naked-eye detection of nitrite in solution or on a cotton swab for a wide range of concentrations.
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Affiliation(s)
- Teresa Antón‐Cánovas
- Instituto de Síntesis Orgánica and Departamento de Química OrgánicaFacultad de CienciasUniversidad de AlicanteApdo. 9903080AlicanteSpain
| | - Francisco Alonso
- Instituto de Síntesis Orgánica and Departamento de Química OrgánicaFacultad de CienciasUniversidad de AlicanteApdo. 9903080AlicanteSpain
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4
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Nechaev IV, Cherkaev GV. Indolizin-1-ols with Charged Electron Acceptors: A Direct Way to 3 H-Indolizinium-1-olates with Donor Functions. J Org Chem 2022; 87:14137-14154. [PMID: 36222876 DOI: 10.1021/acs.joc.2c01700] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The reaction of cyclopropenones with pyridines, having an attached integer-charged electron-withdrawing group (pyridinium, imidazolium, and phosphonium) was discovered to afford novel indolizin-1-ol derivatives in high yields with no chromatographic purification required. While being stable as solids, these indolizin-1-ols have a limited lifetime in solution. The study of reasons for such instability uncovered an aerobic oxidative pathway, eventually resulting in indolizine-1,7-dione dimers. The exploration of N-(1-hydroxyindolizin-7-yl)pyridinium salts' chemistry led to a reaction discovery, affording a new type of rare pseudo-cross-conjugated mesomeric betaines (3H-indolizin-4-ium-1-olates with an electron-donating function at C7 position) inaccessible by other means. In this reaction, a sequential introduction of nucleophiles takes place: the first one (Nu1) is represented by simple anilines, whereas Nu2 extends to primary, secondary, aliphatic, aromatic amines, and phenols. For the obtained betaines having unsymmetrical aliphatic amino groups at C7 position an increased order of the C7-Nu2 bond resulting in existence of amide type E/Z-forms (∼1:1 at room temperature) was demonstrated. For aryl amino groups, with typically reduced nitrogen's lone-pair donation, the barrier of rotation around the C7-Nu2 bond was lower, and for the C7-oxy betaines, no such E/Z-isomerism was revealed. Although primary amines (as Nu2) introduce a hydrogen atom in the conjugated betaine system, allowing prototropic tautomerism in this way, non-zwitterionic tautomers (3-amino-7-iminoindolizin-1-ones) were rejected by nuclear Overhauser effect spectroscopy experiments.
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Affiliation(s)
- Ilya V Nechaev
- Asinex Limited, 20 Geroev Panfilovtsev Street, 125480 Moscow, Russia.,N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky Prospect, 119991 Moscow, Russia
| | - Georgij V Cherkaev
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 70 Profsoyuznaya Street, 117393 Moscow, Russia
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5
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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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6
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Barak DS, Dahatonde DJ, Batra S. Metal‐ and Photoredox‐Catalyst Free Unified Approach for the Synthesis of Azole‐Fused Quinolines via
tert
‐Butyl Nitrite‐Mediated Regioselective Annulation. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Dinesh S. Barak
- Medicinal and Process Chemistry Division CSIR-Central Drug Research Institute Sector 10, Jankipuram Extension, Sitapur Road Lucknow 226031, Uttar Pradesh India
| | - Dipak J. Dahatonde
- Medicinal and Process Chemistry Division CSIR-Central Drug Research Institute Sector 10, Jankipuram Extension, Sitapur Road Lucknow 226031, Uttar Pradesh India
| | - Sanjay Batra
- Medicinal and Process Chemistry Division CSIR-Central Drug Research Institute Sector 10, Jankipuram Extension, Sitapur Road Lucknow 226031, Uttar Pradesh India
- Academy of Scientific and Innovative Research CSIR- Human Resource Development Centre, (CSIR-HRDC) Campus Sector 19, Kamla Nehru Nagar Ghaziabad 201002, UP India
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7
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Izmest'ev AN, Motornov VA, Vinogradov DB, Ioffe SL, Kravchenko AN, Gazieva GA. Tandem Michael addition/elimination – novel reactivity of pyridinium ylides in reaction with electron-deficient alkenes. Org Chem Front 2022. [DOI: 10.1039/d2qo00911k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Novel reactivity of pyridinium ylides in reaction with 4-oxothiazolidin-5-ylidenes as electron-deficient alkenes involving a tandem Michael addition/elimination process was developed to give double bond functionalization products in mild conditions.
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Affiliation(s)
- Alexei N. Izmest'ev
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky Prosp., Moscow 119991, Russian Federation
| | - Vladimir A. Motornov
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, 160 00 Prague 6, Czech Republic
| | - Dmitry B. Vinogradov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky Prosp., Moscow 119991, Russian Federation
| | - Sema L. Ioffe
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky Prosp., Moscow 119991, Russian Federation
| | - Angelina N. Kravchenko
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky Prosp., Moscow 119991, Russian Federation
| | - Galina A. Gazieva
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky Prosp., Moscow 119991, Russian Federation
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8
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Motornov V, Tabolin A, Ioffe S. Oxidative [3+2]-annulation of nitroalkenes and azolium ylides in the presence of Cu(II): efficient synthesis of [5,5]-annulated N-fused heterocycles. NEW J CHEM 2022. [DOI: 10.1039/d1nj05332a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A facile synthesis of [5,5]-annulated N-fused heterocycles – pyrrolo[2,1-b]thiazoles and pyrrolo[1,2-b]indazoles via oxidative [3+2]-annulation between nitroalkenes and azolium ylides in the presence of copper (II) was developed. The reaction proceeds...
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9
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Manjappa KB, Jhang J, Lakshmi KCS, Yang D. Four‐Component Construction of Coumarin‐Fused Pyrrolo[2,1‐
a
]isoquinoline: Expedient Synthesis of Lamellarins and Their Regioselective Demethylation. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100659] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kiran B. Manjappa
- Graduate Program for Biomedical and Materials Science Tunghai University No. 1727, Sec. 4, Taiwan Boulevard, Xitun District 407224 Taichung Taiwan
| | - Jia‐Wei Jhang
- Department of Chemistry Tunghai University No. 1727, Sec. 4, Taiwan Boulevard, Xitun District Taichung Taiwan
| | - K. C. Seetha Lakshmi
- Department of Chemistry Tunghai University No. 1727, Sec. 4, Taiwan Boulevard, Xitun District Taichung Taiwan
| | - Ding‐Yah Yang
- Graduate Program for Biomedical and Materials Science Tunghai University No. 1727, Sec. 4, Taiwan Boulevard, Xitun District 407224 Taichung Taiwan
- Department of Chemistry Tunghai University No. 1727, Sec. 4, Taiwan Boulevard, Xitun District Taichung Taiwan
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