1
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Xue F, Yang CJ, Tang T, He Z. Sequential annulation and isomerisation reaction of 3-acylmethylidene oxindoles with Huisgen zwitterions and synthesis of 5-(3-oxindolyl)oxazoles. Org Biomol Chem 2023; 21:8176-8181. [PMID: 37786314 DOI: 10.1039/d3ob01199b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
Herein, we report a facile synthesis of 5-(3-oxindolyl)oxazole derivatives via a sequential annulation and isomerisation reaction of 3-acylmethylidene oxindoles with in situ generated Huisgen zwitterions (HZs) from PPh3 and azodicarboxylates. This reaction exhibits good functional group tolerance with 30 examples of structurally diverse products prepared with moderate to good efficiencies (up to 88% yield), thus providing a generally applicable route to the biologically important 5-(3-indolyl)oxazole structural motifs. Key to the success of this sequential one-pot strategy is the utilization of DBU as a base to promote the isomerisation process of the corresponding intermediate annulation products.
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Affiliation(s)
- Feixue Xue
- The State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China.
| | - Chang-Jiang Yang
- Department of Chemistry, School of Sciences, Great Bay University, Dongguan 523000, China
- The Dongguan Key Laboratory for Data Science and Intelligent Medicine, Dongguan 523000, China.
| | - Tong Tang
- The State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China.
| | - Zhengjie He
- The State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China.
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2
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Mkrtchyan S, Jakubczyk M, Lanka S, Yar M, Mahmood T, Ayub K, Sillanpää M, Thomas. C, Iaroshenko V. Mechanochemical Ni‐catalysed arylation of ortho‐hydroxyarylenaminones: Synthesis of isoflavones. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Satenik Mkrtchyan
- Laboratory of Homogeneous Catalysis and Molecular Design at Center of Molecular and Macromolecular Studies, Polish Academy of Sciences. POLAND
| | - Michał Jakubczyk
- Institute of Bioorganic Chemistry Polish Academy of Sciences POLAND
| | | | | | | | | | - Mika Sillanpää
- f. Department of Biological and Chemical Engineering, Aarhus University, Nørrebrogade 44, Aarhus C (Denmark). DENMARK
| | | | - Viktor Iaroshenko
- Laboratory of Homogeneous Catalysis and Molecular Design at Center of Molecular and Macromolecular Studies in Lodz POLAND
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3
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A novel protocol involving Huisgen zwitterions for the synthesis of bispyrazolines, and highly functionalized pyrazolines. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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4
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Han W, Yu J, Kang Z, Song L, Pi R, Dong S, Xiong Y, Xia F, Li Z, Liu S. Dual Functional Pd-Catalyzed Multicomponent Reaction by Umpolung Chemistry of the Oxygen Atom in Electrophiles. J Org Chem 2021; 86:6847-6854. [PMID: 33844915 DOI: 10.1021/acs.joc.0c02413] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A Pd-catalyzed multicomponent reaction was developed by trapping oxomium ylide with nitrosobenzene via Pd-promoted umpolung chemistry. The Pd catalyst plays two important roles: diazo compound decomposed catalyst and Lewis acid for the activation of nitrosobenzene. This strategy provides some insight into a new way for discovery of multicomponent methodology to construct complex molecules. The developed method also provides rapid access to a series of O-(2-oxy) hydroxylamine derivatives, which exhibit good anticancer activity in osteosarcoma cells.
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Affiliation(s)
- Wangyujing Han
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai, China 200062
| | - Jie Yu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai, China 200062
| | - Zhenghui Kang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai, China 200062
| | - Longlong Song
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai, China 200062
| | - Rou Pi
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai, China 200062
| | - Suzhen Dong
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai, China 200062
| | - Yuqing Xiong
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai, China 200062
| | - Fei Xia
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai, China 200062
| | - Zi Li
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai, China 200062
| | - Shunying Liu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai, China 200062
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5
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Abstract
Quiet standing exhibits strongly intermittent variability that has inspired at least two interpretations. First, variability can be intermittent through the alternating engagement and disengagement of complementary control processes at distinct scales. A second and perhaps deeper way to interpret this intermittency is through the possibility that postural control depends on cascade-like interactions across many timescales at once, suggesting specific non-Gaussian distributional properties at different timescales. Multiscale probability density function (PDF) analysis shows that quiet standing on a stable surface exhibits a crossover from low, increasing non-Gaussianity (consistent with exponential distributions) at shorter timescales, reflecting inertial control, towards higher non-Gaussianity. Feedback-based control at medium to longer timescales yields a linear decrease that is characteristic of cascade dynamics. Destabilizing quiet standing with an unstable surface or closed eyes serves to attenuate inertial control and to elicit more of the feedback-based control over progressively shorter timescales. The result was to strengthen the appearance of the linear decay indicating cascade dynamics. Finally, both linear and nonlinear indices of postural sway also govern the relative strength of crossover or of linear decay, suggesting that tempering of non-Gaussianity across log-timescale is a function of both extrinsic constraints and endogenous postural control. These results provide new evidence that cascading interactions across longer timescales supporting postural corrections can even recruit shorter timescale processes with novel task constraints that can destabilize posture.
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Affiliation(s)
- Madhur Mangalam
- Department of Physical Therapy, Movement and Rehabilitation Sciences, Northeastern University, Boston, MA 02115, USA
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6
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Qian D, Zhang J. Yne-Enones Enable Diversity-Oriented Catalytic Cascade Reactions: A Rapid Assembly of Complexity. Acc Chem Res 2020; 53:2358-2371. [PMID: 32998506 DOI: 10.1021/acs.accounts.0c00466] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A small-molecule collection with structural diversity and complexity is a prerequisite to using either drug candidates or chemical probes for drug discovery and chemical-biology investigations, respectively. Over the past 12 years, we have engaged in developing efficient diversity-oriented cascade strategies for the synthesis of topologically diverse skeletons incorporating biologically relevant structural motifs such as O- and N-heterocycles, fused polycycles, and multifunctionalized allenes. In particular, we have highlighted the use of simple, linear, and densely functionalized molecular platforms in these reactions.This account details our efforts in the design of novel molecular platforms for use in metal- and organo-catalyzed cascade reactions, which include 2-(1-alknyl)-2-alken-1-ones (yne-enones) for heterocyclization/cross-coupling cascades, heterocyclization/cycloaddition cascades, nucleophilic addition/cross-coupling cascades, nucleophilic addition/heterocyclization cascades, and so on. Moreover, this Account outlines corresponding mechanistic insights, computational information, and applications of these cascades in the construction of various highly substituted carbo- and heterocycles as well as highly functionalized acyclic compounds, e.g., allenes and dienes. In addition to yne-enones, we evolved the functional groups of our original yne-enones to provide a series of yne-enone variants, which resulted in products with complementary reactivities.The reactivity profile of the yne-enones is defined by the presence of an alkyne moiety and a conjugated enone unit and their mutual through-bond connectivity. Owing to the conceptually rapid development of carbophilic activation, we have identified a series of efficient catalytic systems consisting of metal catalysts, including Pd, Au, and Rh complexes, for diversity-oriented cascade catalysis, allowing various unprecedented reactions to be achieved through different-types of reaction intermediates, including all-carbon metal 1,n-dipoles, furan-based o-quinodimethanes (oQDMs), and allenyl-metal species. In addition to commonly known transition-metal catalytic activity, the Lewis acidity of these complexes is crucial to accomplish the corresponding transformation. In addition, highly enantioselective gold(I)-catalyzed heterocyclization/cycloaddition cascades of yne-enones and their variants were achieved by the application of bisphosphines (e.g., Cn-TunePhos), monophosphines, and our developed "Ming-Phos" as chiral ligands. Importantly, Ming-Phos ligands exhibited excellent performance in gold-catalyzed mechanistically distinct [3 + n]-cycloaddition reactions, in which the chiral sulfinamide moiety is possibly responsible for the interaction with the substrate to control enantioselectivity. Subsequently, we demonstrated that the easily prepared polymer-supported Ming-Phos ligand could be applied for heterogeneously gold(I)-catalyzed asymmetric cycloaddition with good stereocontrol. With metal-free catalysis, the divergent functionalization of yne-enones provides numerous synthetic outlets for structure diversification. For example, yne-enones are particularly attractive for use as precursors of various chiral and achiral heterocycles, such as pyrazoles, isoxazoles, pyrroles, and pyrans, etc.
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Affiliation(s)
- Deyun Qian
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200433, China
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7
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Bankura A, Naskar S, Roy Chowdhury S, Maity R, Mishra S, Das I. C
3
‐Thioester/‐Ester Substituted Linear Dienones: A Pluripotent Molecular Platform for Diversification via Cascade Pericyclic Reactions. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000362] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Abhijit Bankura
- Organic and Medicinal Chemistry DivisionCSIR-Indian Institute of Chemical Biology 4, Raja S. C. Mullick Road, Jadavpur Kolkata 700 032 India
| | - Sandip Naskar
- Organic and Medicinal Chemistry DivisionCSIR-Indian Institute of Chemical Biology 4, Raja S. C. Mullick Road, Jadavpur Kolkata 700 032 India
| | - Sabyasachi Roy Chowdhury
- Department of ChemistryIndian Institute of Technology Kharagpur Kharagpur West Bengal 721 302 India
| | - Rajib Maity
- Organic and Medicinal Chemistry DivisionCSIR-Indian Institute of Chemical Biology 4, Raja S. C. Mullick Road, Jadavpur Kolkata 700 032 India
| | - Sabyashachi Mishra
- Department of ChemistryIndian Institute of Technology Kharagpur Kharagpur West Bengal 721 302 India
| | - Indrajit Das
- Organic and Medicinal Chemistry DivisionCSIR-Indian Institute of Chemical Biology 4, Raja S. C. Mullick Road, Jadavpur Kolkata 700 032 India
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8
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Mkrtchyan S, Iaroshenko VO. Photoredox Functionalization of 3-Halogenchromones, 3-Formylchromones, and Chromone-3-carboxylic Acids: Routes to 3-Acylchromones. J Org Chem 2020; 85:7152-7174. [DOI: 10.1021/acs.joc.0c00537] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Satenik Mkrtchyan
- Laboratory of Homogeneous Catalysis and Molecular Design at the Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, PL-90-363 Łodź, Poland
| | - Viktor O. Iaroshenko
- Laboratory of Homogeneous Catalysis and Molecular Design at the Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, PL-90-363 Łodź, Poland
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9
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Nam SB, Khatun N, Kang YW, Park BY, Woo SK. Controllable one-pot synthesis for scaffold diversity via visible-light photoredox-catalyzed Giese reaction and further transformation. Chem Commun (Camb) 2020; 56:2873-2876. [PMID: 32037420 DOI: 10.1039/c9cc08781h] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
This study presents a controllable one-pot synthesis for constructing valuable scaffolds (alcohols, 2,3-dihydrofurans, α-cyano-γ-butyrolactones, and γ-butyrolactones) via a visible-light photoredox-catalyzed Giese reaction and further transformation. This one-pot reaction can selectively synthesize the desired scaffold in excellent yields with good functional group tolerance. To further highlight the broad applicability of this controllable one-pot reaction, we have established flow reaction conditions with short reaction times for the scale-up of each scaffold and demonstrated the further transformation of 2,3-dihydrofurans and α-cyano-γ-butyrolactones to achieve scaffold diversity for applications in drug discovery.
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Affiliation(s)
- Su Been Nam
- Department of Chemistry, University of Ulsan, 93 Daehak-Ro, Nam-Gu, Ulsan 44610, Korea.
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10
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Zhang W, Chu J, Cyr AM, Yueh H, Brown LE, Wang TT, Pelletier J, Porco JA. Intercepted Retro-Nazarov Reaction: Syntheses of Amidino-Rocaglate Derivatives and Their Biological Evaluation as eIF4A Inhibitors. J Am Chem Soc 2019; 141:12891-12900. [PMID: 31310112 PMCID: PMC6693944 DOI: 10.1021/jacs.9b06446] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Rocaglates are a family of natural products isolated from the genus Aglaia which possess a highly substituted cyclopenta[b]benzofuran skeleton and inhibit cap-dependent protein synthesis. Rocaglates are attractive compounds due to their potential for inhibiting tumor cell maintenance in vivo by specifically targeting eukaryotic initiation factor 4A (eIF4A) and interfering with recruitment of ribosomes to mRNA. In this paper, we describe an intercepted retro-Nazarov reaction utilizing intramolecular tosyl migration to generate a reactive oxyallyl cation on the rocaglate skeleton. Trapping of the oxyallyl cation with a diverse range of nucleophiles has been used to generate over 50 novel amidino-rocaglate (ADR) and amino-rocaglate derivatives. Subsequently, these derivatives were evaluated for their ability to inhibit cap-dependent protein synthesis where they were found to outperform previous lead compounds including the rocaglate hydroxamate CR-1-31-B.
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Affiliation(s)
- Wenhan Zhang
- Department of Chemistry, Center for Molecular Discovery (BU-CMD), Boston University, 590 Commonwealth Avenue, Boston, MA 02215, United States of America
| | - Jennifer Chu
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada, H3G 1Y6
| | - Andrew M. Cyr
- Department of Chemistry, Center for Molecular Discovery (BU-CMD), Boston University, 590 Commonwealth Avenue, Boston, MA 02215, United States of America
| | - Han Yueh
- Department of Chemistry, Center for Molecular Discovery (BU-CMD), Boston University, 590 Commonwealth Avenue, Boston, MA 02215, United States of America
| | - Lauren E. Brown
- Department of Chemistry, Center for Molecular Discovery (BU-CMD), Boston University, 590 Commonwealth Avenue, Boston, MA 02215, United States of America
| | - Tony T. Wang
- Laboratory of Vector-borne Viral Diseases, Division of Viral Products, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD 20903, USA
| | - Jerry Pelletier
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada, H3G 1Y6
- Department of Oncology, McGill University, Montreal, Quebec, Canada, H3G 1Y6
- Rosalind & Morris Goodman Cancer Research Centre, McGill University, Montreal, Quebec, Canada, H3G 1Y6
| | - John A. Porco
- Department of Chemistry, Center for Molecular Discovery (BU-CMD), Boston University, 590 Commonwealth Avenue, Boston, MA 02215, United States of America
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11
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Ciulla MG, Zimmermann S, Kumar K. Cascade reaction based synthetic strategies targeting biologically intriguing indole polycycles. Org Biomol Chem 2019; 17:413-431. [DOI: 10.1039/c8ob02620c] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In this review, cascade reaction based synthesis strategies delivering biologically intriguing indole polycycles are presented.
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Affiliation(s)
- Maria Gessica Ciulla
- Max-Planck-Institut für Molekulare Physiologie
- Abteilung Chemische Biologie
- 44227 Dortmund
- Germany
| | - Stefan Zimmermann
- Max-Planck-Institut für Molekulare Physiologie
- Abteilung Chemische Biologie
- 44227 Dortmund
- Germany
- Fakultät Chemie und Chemische Biologie Technische Universität Dortmund
| | - Kamal Kumar
- Max-Planck-Institut für Molekulare Physiologie
- Abteilung Chemische Biologie
- 44227 Dortmund
- Germany
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12
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Cao T, Chen L, Zhu S. Mechanism-Guided Scaffold Diversification: Perturbing and Trapping the Intermediates of Maltol-Type Cascade Claisen Rearrangement. Org Lett 2018; 21:90-94. [PMID: 30566350 DOI: 10.1021/acs.orglett.8b03519] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A mechanism-guided study to harness different kinds of active species in the cascade Claisen rearrangement for scaffold diversification has been developed. These robust and practical processes furnished a series of architectures with a large chemical space, varying from planar to three-dimensional. In addition, several interesting reactions were observed, such as [3 + 3] dimerization, quinone-based vinylogous Nazarov-type cyclization, and a rare 12e [σ2a + π2s + π2a + π2s + (π2a + π2s)] Mobius aromatic transition state mediated rearrangement.
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Affiliation(s)
- Tongxiang Cao
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou , 510640 , P. R. China
| | - Lianfen Chen
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou , 510640 , P. R. China
| | - Shifa Zhu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou , 510640 , P. R. China
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13
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Mkrtchyan S, Iaroshenko VO. New Entries to 3-Acylchromones: TM-Catalysed Decarboxylative Cross-Coupling of α-Keto Acids with ortho
-Hydroxyarylenaminones, 2,3-Unsubstituted Chromones and 3-Iodochromones. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801231] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Satenik Mkrtchyan
- Laboratory of Homogeneous Catalysis and Molecular Design at the Centre of Molecular and Macromolecular Studies; Polish Academy of Sciences; Sienkiewicza 112, PL -90-363 Łodź Poland
| | - Viktor O. Iaroshenko
- Laboratory of Homogeneous Catalysis and Molecular Design at the Centre of Molecular and Macromolecular Studies; Polish Academy of Sciences; Sienkiewicza 112, PL -90-363 Łodź Poland
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14
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Samarium(II) folding cascades involving hydrogen atom transfer for the synthesis of complex polycycles. Nat Commun 2018; 9:4802. [PMID: 30442955 PMCID: PMC6237924 DOI: 10.1038/s41467-018-07194-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 10/16/2018] [Indexed: 01/01/2023] Open
Abstract
The expedient assembly of complex, natural product-like small molecules can deliver new chemical entities with the potential to interact with biological systems and inspire the development of new drugs and probes for biology. Diversity-oriented synthesis is a particularly attractive strategy for the delivery of complex molecules in which the 3-dimensional architecture varies across the collection. Here we describe a folding cascade approach to complex polycyclic systems bearing multiple stereocentres mediated by reductive single electron transfer (SET) from SmI2. Simple, linear substrates undergo three different folding pathways triggered by reductive SET. Two of the radical cascade pathways involve the activation and functionalization of otherwise inert secondary alkyl and benzylic groups by 1,5-hydrogen atom transfer (HAT). Combination of SmI2, a privileged reagent for cascade reactions, and 1,5-HAT can lead to complexity-generating radical sequences that unlock access to diverse structures not readily accessible by other means.
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15
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16
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A Diels-Alder reaction / oxa-Michael addition / acyloin rearrangement cascade on tropolonic substrates. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.03.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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17
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Sankar MG, Roy S, Tran TTN, Wittstein K, Bauer JO, Strohmann C, Ziegler S, Kumar K. Scaffold Diversity Synthesis Delivers Complex, Structurally, and Functionally Distinct Tetracyclic Benzopyrones. ChemistryOpen 2018; 7:302-309. [PMID: 29721402 PMCID: PMC5917230 DOI: 10.1002/open.201800025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Indexed: 12/19/2022] Open
Abstract
Complexity-generating chemical transformations that afford novel molecular scaffolds enriched in sp3 character are highly desired. Here, we present a highly stereoselective scaffold diversity synthesis approach that utilizes cascade double-annulation reactions of diverse pairs of zwitterionic and non-zwitterionic partners with 3-formylchromones to generate highly complex tetracyclic benzopyrones. Each pair of annulation partners adds to the common chroman-4-one scaffold to build two new rings, supporting up to four contiguous chiral centers that include an all-carbon quaternary center. Differently ring-fused benzopyrones display different biological activities, thus demonstrating their immense potential in medicinal chemistry and chemical biology research.
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Affiliation(s)
- Muthukumar G. Sankar
- Department of Chemical BiologyMax Planck Institute of Molecular PhysiologyOtto-Hahn Str. 1144227DortmundGermany
| | - Sayantani Roy
- Department of Chemical BiologyMax Planck Institute of Molecular PhysiologyOtto-Hahn Str. 1144227DortmundGermany
| | - Tuyen Thi Ngoc Tran
- Department of Chemical BiologyMax Planck Institute of Molecular PhysiologyOtto-Hahn Str. 1144227DortmundGermany
- Faculty of Chemistry and Chemical BiologyTechnical University of DortmundOtto-Hahn Str. 644227DortmundGermany
| | - Kathrin Wittstein
- Department of Chemical BiologyMax Planck Institute of Molecular PhysiologyOtto-Hahn Str. 1144227DortmundGermany
- Faculty of Chemistry and Chemical BiologyTechnical University of DortmundOtto-Hahn Str. 644227DortmundGermany
| | - Jonathan O. Bauer
- Faculty of Chemistry and Chemical BiologyTechnical University of DortmundOtto-Hahn Str. 644227DortmundGermany
| | - Carsten Strohmann
- Faculty of Chemistry and Chemical BiologyTechnical University of DortmundOtto-Hahn Str. 644227DortmundGermany
| | - Slava Ziegler
- Department of Chemical BiologyMax Planck Institute of Molecular PhysiologyOtto-Hahn Str. 1144227DortmundGermany
| | - Kamal Kumar
- Department of Chemical BiologyMax Planck Institute of Molecular PhysiologyOtto-Hahn Str. 1144227DortmundGermany
- Faculty of Chemistry and Chemical BiologyTechnical University of DortmundOtto-Hahn Str. 644227DortmundGermany
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18
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19
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Ali RS, Saad HA. Synthesis of Some Novel Fused Pyrimido[4″,5″:5',6']-[1,2,4]triazino[3',4':3,4] [1,2,4]triazino[5,6-b]indoles with Expected Anticancer Activity. Molecules 2018; 23:molecules23030693. [PMID: 29562697 PMCID: PMC6017869 DOI: 10.3390/molecules23030693] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Revised: 03/13/2018] [Accepted: 03/16/2018] [Indexed: 01/24/2023] Open
Abstract
Our current goal is the synthesis of polyheterocyclic compounds starting from 3-amino-[1,2,4]triazino[5,6-b]indole 1 and studying their anticancer activity to determine whether increasing of the size of the molecules increases the anticancer activity or not. 1-Amino[1,2,4]triazino[3′,4′:3,4]-[1,2,4]triazino[5,6-b]indole-2-carbonitrile (4) was prepared by the diazotization of 3-amino[1,2,4]-triazino[5,6-b]indole 1 followed by coupling with malononitrile in basic medium then cyclization under reflux to get 4. Also, new fused pyrimido[4″,5″:5′,6′][1,2,4]triazino-[3′,4′:3,4][1,2,4]triazino[5,6-b]indole derivative 6 was prepared and used to obtain polycyclic heterocyclic systems. Confirmation of the synthesized compounds’ structures was carried out using elemental analyses and spectral data (IR, 1H-NMR and 13C-NMR and mass spectra). The anticancer activity of some of the synthesized compounds was tested against HepG2, HCT-116 and MCF-7 cell lines. The anticancer screening results showed that some derivatives display good activity which was more potent than that of the reference drug used. Molecular docking was used to predict the binding between some of the synthesized compounds and the prostate cancer 2q7k hormone and breast cancer 3hb5 receptors.
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Affiliation(s)
- Rania S Ali
- Chemistry Department, Faculty of Science, Taif University, Taif 21974, Saudi Arabia.
- Department of Basic Science, Faculty of Industrial Education, Helwan University, Cairo 11795, Egypt.
| | - Hosam A Saad
- Chemistry Department, Faculty of Science, Taif University, Taif 21974, Saudi Arabia.
- Chemistry Department, Faculty of Science, Zagazig University, Zagazig 44511, Egypt.
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20
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Lepitre T, Denhez C, Moncol J, Othman M, Lawson AM, Daïch A. Structure-Based Kinetic Control in a Domino Process: A Powerful Tool Toward Molecular Diversity in Chromone Series. J Org Chem 2017; 82:12188-12201. [PMID: 29052417 DOI: 10.1021/acs.joc.7b01996] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Two successive original routes leading to two novel families of polyheterocycles starting from the versatile chromone-based Michael acceptors platform are reported herein. The major aspect of this work is the selective access to these frameworks by changing the course of the domino process involved in their formation. First, enaminochromanones were selectively accessed under uncommon kinetic control. In this study, we showed that the tuning of the selectivity toward the kinetic product could be achieved by key structural modifications of the different reaction partners involved in the domino process. Once selectivity was efficiently controlled, enaminochromanones were ultimately transformed into a more complex family of polyheterocycles containing the pyrrolo-oxazinone framework. Here, the modulation of the domino sequence toward these particularly scarce structures was enabled by a pivotal switch in reactivity induced by aryl-λ3-iodanes.
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Affiliation(s)
- Thomas Lepitre
- Normandie University , UNILEHAVRE, URCOM, EA 3221, INC3M, FR 3038 CNRS, F-76600 Le Havre, France
| | - Clement Denhez
- ICMR, CNRS UMR 7312, UFR Pharmacie, Universite de Reims Champagne Ardenne , 51 rue Cognacq-Jay, 51096 Cedex Reims, France.,Université de Reims Champagne Ardenne , Multiscale Molecular Modelling Platform, UFR Sciences Exactes et Naturelles, F-51687 Cedex 2 Reims, France
| | - Jan Moncol
- Slovak University of Technology , Department of Inorganic Chemistry, Institute of Inorganic Chemistry, Technology and Materials, Radlinskeho 9, SK-81237 Bratislava, Slovakia
| | - Mohamed Othman
- Normandie University , UNILEHAVRE, URCOM, EA 3221, INC3M, FR 3038 CNRS, F-76600 Le Havre, France
| | - Ata Martin Lawson
- Normandie University , UNILEHAVRE, URCOM, EA 3221, INC3M, FR 3038 CNRS, F-76600 Le Havre, France
| | - Adam Daïch
- Normandie University , UNILEHAVRE, URCOM, EA 3221, INC3M, FR 3038 CNRS, F-76600 Le Havre, France
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21
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Li Y, Zhang H, Wei R, Miao Z. Chemo- and Diastereoselective Construction of Indenopyrazolines via
a Cascade aza-Michael/Aldol Annulation of Huisgen Zwitterions with 2-Arylideneindane-1,3-diones. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701013] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Yuming Li
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry; Nankai University; Weijin Road 94 Tianjin 300071 People's Republic of China
| | - Haikun Zhang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry; Nankai University; Weijin Road 94 Tianjin 300071 People's Republic of China
| | - Rong Wei
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry; Nankai University; Weijin Road 94 Tianjin 300071 People's Republic of China
| | - Zhiwei Miao
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry; Nankai University; Weijin Road 94 Tianjin 300071 People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin 300071 People's Republic of China
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22
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Biswas A, Karmakar U, Nandi S, Samanta R. Copper-Catalyzed Direct, Regioselective Arylamination of N-Oxides: Studies To Access Conjugated π-Systems. J Org Chem 2017; 82:8933-8942. [DOI: 10.1021/acs.joc.7b01343] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Aniruddha Biswas
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Ujjwal Karmakar
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Shiny Nandi
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Rajarshi Samanta
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
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23
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Hamama WS, Hassanien AEDE, Zoorob HH. Advanced Routes in Synthesis and Reactions of Lawsone Molecules (2-Hydroxynaphthalene-1,4-dione). J Heterocycl Chem 2017. [DOI: 10.1002/jhet.2855] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Wafaa S. Hamama
- Chemistry Department, Faculty of Science; Mansoura University; El-Gomhoria Street ET-35516 Mansoura Egypt
| | - Alaa El-Din E. Hassanien
- Chemistry Department, Faculty of Science; Mansoura University; El-Gomhoria Street ET-35516 Mansoura Egypt
| | - Hanafi H. Zoorob
- Chemistry Department, Faculty of Science; Mansoura University; El-Gomhoria Street ET-35516 Mansoura Egypt
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24
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Lepitre T, Le Biannic R, Othman M, Lawson AM, Daïch A. Metal-Free Cascade Approach toward Polysubstituted Indolizines from Chromone-Based Michael Acceptors. Org Lett 2017; 19:1978-1981. [PMID: 28394140 DOI: 10.1021/acs.orglett.7b00309] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
An efficient cascade transformation toward indolizine-based molecules has been developed. This process leads to the rapid construction of two C-N bonds and one C-C bond without the need of any metal catalysis. The approach involves easily accessible chromone-based Michael acceptors and propargylamine derivatives as starting materials. This cascade constitutes a novel and very competitive alternative to the well reported strategies using pyridine or pyrrole derivatives for accessing the indolizine ring with substituents at uncommon C-positions.
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Affiliation(s)
- Thomas Lepitre
- UNILEHAVRE, FR 3038 CNRS, URCOM, Normandie Université , Le Havre, 76600, France.,EA 3221, INC3M CNRS-FR 3038, UFR des Sciences et Techniques, Université du Havre , BP: 1123, 25 rue Philipe Lebon, F-76063 Le Havre Cedex, France
| | - Raphael Le Biannic
- UNILEHAVRE, FR 3038 CNRS, URCOM, Normandie Université , Le Havre, 76600, France.,EA 3221, INC3M CNRS-FR 3038, UFR des Sciences et Techniques, Université du Havre , BP: 1123, 25 rue Philipe Lebon, F-76063 Le Havre Cedex, France
| | - Mohamed Othman
- UNILEHAVRE, FR 3038 CNRS, URCOM, Normandie Université , Le Havre, 76600, France.,EA 3221, INC3M CNRS-FR 3038, UFR des Sciences et Techniques, Université du Havre , BP: 1123, 25 rue Philipe Lebon, F-76063 Le Havre Cedex, France
| | - Ata Martin Lawson
- UNILEHAVRE, FR 3038 CNRS, URCOM, Normandie Université , Le Havre, 76600, France.,EA 3221, INC3M CNRS-FR 3038, UFR des Sciences et Techniques, Université du Havre , BP: 1123, 25 rue Philipe Lebon, F-76063 Le Havre Cedex, France
| | - Adam Daïch
- UNILEHAVRE, FR 3038 CNRS, URCOM, Normandie Université , Le Havre, 76600, France.,EA 3221, INC3M CNRS-FR 3038, UFR des Sciences et Techniques, Université du Havre , BP: 1123, 25 rue Philipe Lebon, F-76063 Le Havre Cedex, France
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25
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Lee YC, Patil S, Golz C, Strohmann C, Ziegler S, Kumar K, Waldmann H. A ligand-directed divergent catalytic approach to establish structural and functional scaffold diversity. Nat Commun 2017; 8:14043. [PMID: 28195128 PMCID: PMC5316858 DOI: 10.1038/ncomms14043] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Accepted: 11/23/2016] [Indexed: 12/21/2022] Open
Abstract
The selective transformation of different starting materials by different metal catalysts under individually optimized reaction conditions to structurally different intermediates and products is a powerful approach to generate diverse molecular scaffolds. In a more unified albeit synthetically challenging strategy, common starting materials would be exposed to a common metal catalysis, leading to a common intermediate and giving rise to different scaffolds by tuning the reactivity of the metal catalyst through different ligands. Herein we present a ligand-directed synthesis approach for the gold(I)-catalysed cycloisomerization of oxindole-derived 1,6-enynes that affords distinct molecular scaffolds following different catalytic reaction pathways. Varying electronic properties and the steric demand of the gold(I) ligands steers the fate of a common intermediary gold carbene to selectively form spirooxindoles, quinolones or df-oxindoles. Investigation of a synthesized compound collection in cell-based assays delivers structurally novel, selective modulators of the Hedgehog and Wnt signalling pathways, autophagy and of cellular proliferation. Synthetic methods that efficiently construct structurally diverse molecular scaffolds are attractive routes to diversely bioactive molecules. Here the authors report a method whereby common starting materials are converted to structurally and functionally diverse products by changing the catalyst ligand.
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Affiliation(s)
- Yen-Chun Lee
- Max-Planck-Institut für Molekulare Physiologie, Abteilung Chemische Biologie, Otto-Hahn-Straße 11, Dortmund 44227, Germany.,Technische Universität Dortmund, Fakultät Chemie, Chemische Biologie, Otto-Hahn-Straße 6, Dortmund 44221, Germany
| | - Sumersing Patil
- Max-Planck-Institut für Molekulare Physiologie, Abteilung Chemische Biologie, Otto-Hahn-Straße 11, Dortmund 44227, Germany.,Technische Universität Dortmund, Fakultät Chemie, Chemische Biologie, Otto-Hahn-Straße 6, Dortmund 44221, Germany
| | - Christopher Golz
- Technische Universität Dortmund, Fakultät Chemie, Chemische Biologie, Otto-Hahn-Straße 6, Dortmund 44221, Germany
| | - Carsten Strohmann
- Technische Universität Dortmund, Fakultät Chemie, Chemische Biologie, Otto-Hahn-Straße 6, Dortmund 44221, Germany
| | - Slava Ziegler
- Max-Planck-Institut für Molekulare Physiologie, Abteilung Chemische Biologie, Otto-Hahn-Straße 11, Dortmund 44227, Germany
| | - Kamal Kumar
- Max-Planck-Institut für Molekulare Physiologie, Abteilung Chemische Biologie, Otto-Hahn-Straße 11, Dortmund 44227, Germany
| | - Herbert Waldmann
- Max-Planck-Institut für Molekulare Physiologie, Abteilung Chemische Biologie, Otto-Hahn-Straße 11, Dortmund 44227, Germany.,Technische Universität Dortmund, Fakultät Chemie, Chemische Biologie, Otto-Hahn-Straße 6, Dortmund 44221, Germany
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26
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Yang Y, Li B, Liu W, Zhang R, Yu L, Ma QG, Lv R, Du D, Li T. Cp*CoIII-Catalyzed Synthesis of Pyrido[2′,1′:2,3]pyrimido[1,6-a]indol-5-iums via Tandem C–H Activation and Subsequent Annulation from 1-(Pyridin-2-yl)-1H-indoles and Internal Alkynes. J Org Chem 2016; 81:11335-11345. [DOI: 10.1021/acs.joc.6b02314] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yuhan Yang
- College of Chemistry and
Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, P. R. China
| | - Bo Li
- College of Chemistry and
Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, P. R. China
| | - Wenmin Liu
- College of Chemistry and
Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, P. R. China
| | - Rumeng Zhang
- College of Chemistry and
Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, P. R. China
| | - Lintao Yu
- College of Chemistry and
Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, P. R. China
| | - Qin-Ge Ma
- College of Chemistry and
Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, P. R. China
| | - Rongrong Lv
- College of Chemistry and
Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, P. R. China
| | - Donghua Du
- College of Chemistry and
Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, P. R. China
| | - Ting Li
- College of Chemistry and
Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, P. R. China
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27
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Bansode AH, Chimala P, Patil NT. Catalytic Branching Cascades in Diversity Oriented Synthesis. ChemCatChem 2016. [DOI: 10.1002/cctc.201600766] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Avinash H. Bansode
- Division of Organic Chemistry; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune - 411 008 India
| | - Prathyusha Chimala
- Division of Organic Chemistry; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune - 411 008 India
| | - Nitin T. Patil
- Division of Organic Chemistry; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune - 411 008 India
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28
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Sawant RT, Stevens MY, Sköld C, Odell LR. Microwave-Assisted Branching Cascades: A Route to Diverse 3,4-Dihydroquinazolinone-Embedded Polyheterocyclic Scaffolds. Org Lett 2016; 18:5392-5395. [DOI: 10.1021/acs.orglett.6b02774] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Rajiv T. Sawant
- Organic
Pharmaceutical Chemistry,
Department of Medicinal Chemistry, Uppsala Biomedical Center, Uppsala University, P.O.
Box 574, SE-751 23 Uppsala, Sweden
| | - Marc Y. Stevens
- Organic
Pharmaceutical Chemistry,
Department of Medicinal Chemistry, Uppsala Biomedical Center, Uppsala University, P.O.
Box 574, SE-751 23 Uppsala, Sweden
| | - Christian Sköld
- Organic
Pharmaceutical Chemistry,
Department of Medicinal Chemistry, Uppsala Biomedical Center, Uppsala University, P.O.
Box 574, SE-751 23 Uppsala, Sweden
| | - Luke R. Odell
- Organic
Pharmaceutical Chemistry,
Department of Medicinal Chemistry, Uppsala Biomedical Center, Uppsala University, P.O.
Box 574, SE-751 23 Uppsala, Sweden
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29
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Sharada DS, Shinde AH, Patel SM, Vidyacharan S. Scaffold Diversity through a Branching Double-Annulation Cascade Strategy: Iminium-Induced One-Pot Synthesis of Diverse Fused Tetrahydroisoquinoline Scaffolds. J Org Chem 2016; 81:6463-71. [DOI: 10.1021/acs.joc.6b01096] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Duddu S. Sharada
- Department of Chemistry, Indian Institute of Technology Hyderabad (IITH), Kandi, Sangareddy, Telangana 502 285, India
| | - Anand H. Shinde
- Department of Chemistry, Indian Institute of Technology Hyderabad (IITH), Kandi, Sangareddy, Telangana 502 285, India
| | - Srilaxmi M. Patel
- Department of Chemistry, Indian Institute of Technology Hyderabad (IITH), Kandi, Sangareddy, Telangana 502 285, India
| | - Shinde Vidyacharan
- Department of Chemistry, Indian Institute of Technology Hyderabad (IITH), Kandi, Sangareddy, Telangana 502 285, India
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30
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James MJ, O'Brien P, Taylor RJK, Unsworth WP. Selective Synthesis of Six Products from a Single Indolyl α-Diazocarbonyl Precursor. Angew Chem Int Ed Engl 2016; 55:9671-5. [DOI: 10.1002/anie.201605337] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Indexed: 01/19/2023]
Affiliation(s)
| | - Peter O'Brien
- Department of Chemistry; University of York; York YO10 5DD UK
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31
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James MJ, O'Brien P, Taylor RJK, Unsworth WP. Selective Synthesis of Six Products from a Single Indolyl α-Diazocarbonyl Precursor. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201605337] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
| | - Peter O'Brien
- Department of Chemistry; University of York; York YO10 5DD UK
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32
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Pérez-Galán P, Waldmann H, Kumar K. Building polycyclic indole scaffolds via gold(I)-catalyzed intra- and inter-molecular cyclization reactions of 1,6-enynes. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.03.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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33
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Garcia-Castro M, Zimmermann S, Sankar MG, Kumar K. Gerüstdiversitätsbasierte Synthese und ihre Anwendung bei der Sonden- und Wirkstoffsuche. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201508818] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Miguel Garcia-Castro
- Abteilung Chemische Biologie; Max-Planck-Institut für molekulare Physiologie; Otto-Hahn-Straße 11 44227 Dortmund Deutschland
| | - Stefan Zimmermann
- Abteilung Chemische Biologie; Max-Planck-Institut für molekulare Physiologie; Otto-Hahn-Straße 11 44227 Dortmund Deutschland
| | - Muthukumar G. Sankar
- Abteilung Chemische Biologie; Max-Planck-Institut für molekulare Physiologie; Otto-Hahn-Straße 11 44227 Dortmund Deutschland
| | - Kamal Kumar
- Abteilung Chemische Biologie; Max-Planck-Institut für molekulare Physiologie; Otto-Hahn-Straße 11 44227 Dortmund Deutschland
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34
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Garcia-Castro M, Zimmermann S, Sankar MG, Kumar K. Scaffold Diversity Synthesis and Its Application in Probe and Drug Discovery. Angew Chem Int Ed Engl 2016; 55:7586-605. [DOI: 10.1002/anie.201508818] [Citation(s) in RCA: 113] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2015] [Revised: 01/19/2016] [Indexed: 01/19/2023]
Affiliation(s)
- Miguel Garcia-Castro
- Department of Chemical Biology; Max Planck Institute of Molecular Physiology; Otto-Hahn-Strasse 11 44227 Dortmund Germany
| | - Stefan Zimmermann
- Department of Chemical Biology; Max Planck Institute of Molecular Physiology; Otto-Hahn-Strasse 11 44227 Dortmund Germany
| | - Muthukumar G. Sankar
- Department of Chemical Biology; Max Planck Institute of Molecular Physiology; Otto-Hahn-Strasse 11 44227 Dortmund Germany
| | - Kamal Kumar
- Department of Chemical Biology; Max Planck Institute of Molecular Physiology; Otto-Hahn-Strasse 11 44227 Dortmund Germany
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35
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Tejedor D, López-Tosco S, Méndez-Abt G, Cotos L, García-Tellado F. Propargyl Vinyl Ethers and Tertiary Skipped Diynes: Two Pluripotent Molecular Platforms for Diversity-Oriented Synthesis. Acc Chem Res 2016; 49:703-13. [PMID: 27050293 DOI: 10.1021/acs.accounts.5b00545] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
During the last years, we have been involved in the development of a diversity-oriented synthetic strategy aimed at transforming simple, linear, and densely functionalized molecular platforms into collections of topologically diverse scaffolds incorporating biologically relevant structural motifs such as N- and O- heterocycles, multifunctionalized aromatic rings, fused macrocycles, etc. The strategy merges the concepts of pluripotency (the property of an array of chemical functionalities to express different chemical outcomes under different chemical environments) and domino chemistry (chemistry based on processes involving two or more bond-forming transformations that take place while the initial reaction conditions are maintained, with the subsequent reaction resulting as a consequence of the functionality installed in the previous one) to transform common multifunctional substrates into complex and diverse molecular frameworks. This design concept constitutes the ethos of the so-called branching cascade strategy, a branch of diversity-oriented synthesis focused on scaffold diversity generation. Two pluripotent molecular platforms have been extensively studied under this merging (branching) paradigm: C4-O-C3 propargyl vinyl ethers (PVEs) and C7 tertiary skipped diynes (TSDs). These are conveniently constructed from simple and commercially available raw materials (alkyl propiolates, ketones, aldehydes, acid chlorides) through multicomponent manifolds (ABB' three-component reaction for PVEs; A2BB' four-component reaction for TSDs) or a simple two-step procedure (for PVEs). Their modular origin facilitates their structural/functional diversification without increasing the number of synthetic steps for their assembly. These two pluripotent molecular platforms accommodate a well-defined and dense array of through-bond/through-space interrelated functionalities on their structures, which defines their primary reactivity principles and establishes the reactivity profile. The PVEs are defined by the presence of an alkyne (alkynoate) function and a conjugated enol moiety and their mutual through-bond/through-space connectivity. This functional array accommodates a number of domino reactions launched either by a Michael addition on the alkynoate moiety (conjugated alkynes) or by a [3,3]-propargyl Claisen rearrangement (conjugated and nonconjugated alkynes). The reactivity profile of the TSDs is defined by the two connected alkynoate moieties (Michael addition) and the bispropargylic ester group ([3,3]-sigmatropic rearrangement). Using these first reactivity principles, each platform selectively delivers one unique and different skeleton (topology) from each domino transformation. Thus, through the use of 11 instrumentally simple and scalable domino reactions, we have transformed these two linear (rod-symmetric) pluripotent molecular platforms into 16 different scaffolds incorporating important structural motifs and multifunctional decorative patterns. The generated scaffolds entail carbocycles, heterocycles, aromatics, β,γ-unsaturated esters and acids, and fused polycycles. They can be transformed into more elaborated molecular skeletons by the use of chemical handles generated in their own domino reactions or by appending different functionalities to the pluripotent molecular platform (secondary reactivity principles).
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Affiliation(s)
- David Tejedor
- Department of Biological
Chemistry and Biotechnology, Instituto de Productos Naturales y Agrobiología, CSIC, Astrofísico Francisco Sánchez 3, 38206 La Laguna, Tenerife, Islas Canarias, Spain
| | - Sara López-Tosco
- Department of Biological
Chemistry and Biotechnology, Instituto de Productos Naturales y Agrobiología, CSIC, Astrofísico Francisco Sánchez 3, 38206 La Laguna, Tenerife, Islas Canarias, Spain
| | - Gabriela Méndez-Abt
- Department of Biological
Chemistry and Biotechnology, Instituto de Productos Naturales y Agrobiología, CSIC, Astrofísico Francisco Sánchez 3, 38206 La Laguna, Tenerife, Islas Canarias, Spain
| | - Leandro Cotos
- Department of Biological
Chemistry and Biotechnology, Instituto de Productos Naturales y Agrobiología, CSIC, Astrofísico Francisco Sánchez 3, 38206 La Laguna, Tenerife, Islas Canarias, Spain
| | - Fernando García-Tellado
- Department of Biological
Chemistry and Biotechnology, Instituto de Productos Naturales y Agrobiología, CSIC, Astrofísico Francisco Sánchez 3, 38206 La Laguna, Tenerife, Islas Canarias, Spain
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36
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Wu C, Zhao F, Du Y, Zhao L, Chen L, Wang J, Liu H. Highly selective intramolecular addition of C–N and S–N bonds to alkynes catalyzed by palladium: a practical access to two distinct functional indoles. RSC Adv 2016. [DOI: 10.1039/c6ra15945a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Palladium-catalyzed highly selective intramolecular addition of C–N and S–N bonds to alkynes has been achieved, and two distinct kinds of functional indoles were synthesized rapidly from the same set of substrates in a catalyst-controlled manner.
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Affiliation(s)
- Chenglin Wu
- School of Pharmacy
- China Pharmaceutical University
- Nanjing 210009
- China
- CAS Key Laboratory of Receptor Research
| | - Fei Zhao
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province
- Sichuan Industrial Institute of Antibiotics
- Chengdu University
- Chengdu 610052
- People's Republic of China
| | - Yonglei Du
- CAS Key Laboratory of Receptor Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- P. R. China
| | - Liang Zhao
- CAS Key Laboratory of Receptor Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- P. R. China
| | - Liang Chen
- CAS Key Laboratory of Receptor Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- P. R. China
| | - Jiang Wang
- CAS Key Laboratory of Receptor Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- P. R. China
| | - Hong Liu
- School of Pharmacy
- China Pharmaceutical University
- Nanjing 210009
- China
- CAS Key Laboratory of Receptor Research
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37
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Hong XW, Zhou YQ, Bai CB, Wang NX, Xing Y, Zhang W, Wang YJ, Lan XW, Xie Y, Li YH. Asymmetric Synthesis of 1,3-Oxazolidine Derivatives with Multi-Component Reaction and Research of Kinetic Resolution. Molecules 2015; 20:17208-20. [PMID: 26393558 PMCID: PMC6332461 DOI: 10.3390/molecules200917208] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Revised: 08/31/2015] [Accepted: 09/01/2015] [Indexed: 11/25/2022] Open
Abstract
An efficient multi-component reaction to synthesize multi-substituted 1,3-oxazolidine compounds of high optical purity was described. All the products were well-characterized and the absolute configuration of one chiral center was determined. The plausible mechanism was proposed and a kinetic resolution of epoxides process was confirmed.
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Affiliation(s)
- Xiao-Wei Hong
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100080, China.
- College of Environment and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, China.
| | - Yu-Qiang Zhou
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100080, China.
| | - Cui-Bing Bai
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100080, China.
| | - Nai-Xing Wang
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100080, China.
| | - Yalan Xing
- Department of Chemistry, William Paterson University of New Jersey, 300 Pompton Road, Wayne, NJ 07470, USA.
| | - Wei Zhang
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100080, China.
| | - Yan-Jing Wang
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100080, China.
| | - Xing-Wang Lan
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100080, China.
| | - Yu Xie
- College of Environment and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, China.
| | - Yi-He Li
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100080, China.
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38
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Branching cascades provide access to two amino-oxazoline compound libraries. Bioorg Med Chem 2015; 23:2656-65. [DOI: 10.1016/j.bmc.2015.01.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Revised: 12/26/2014] [Accepted: 01/06/2015] [Indexed: 12/19/2022]
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39
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Kamal Kumar. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/anie.201411798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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40
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Kamal Kumar. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201411798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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41
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De novo branching cascades for structural and functional diversity in small molecules. Nat Commun 2015; 6:6516. [DOI: 10.1038/ncomms7516] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Accepted: 02/04/2015] [Indexed: 12/20/2022] Open
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42
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Zhang Y, Wu S, Wang S, Fang K, Dong G, Liu N, Miao Z, Yao J, Li J, Zhang W, Sheng C, Wang W. Divergent Cascade Construction of Skeletally Diverse “Privileged” Pyrazole-Derived Molecular Architectures. European J Org Chem 2015. [DOI: 10.1002/ejoc.201403673] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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43
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Danda A, Kumar K, Waldmann H. A general catalytic reaction sequence to access alkaloid-inspired indole polycycles. Chem Commun (Camb) 2015; 51:7536-9. [DOI: 10.1039/c5cc01555c] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A general two-step catalytic reaction sequence affording a range of indole alkaloid-inspired complex molecular frameworks is presented.
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Affiliation(s)
- Adithi Danda
- Max Planck Institute of Molecular Physiology
- Department of Chemical Biology
- 44227-Dortmund
- Germany
- Fakultät Chemie
| | - Kamal Kumar
- Max Planck Institute of Molecular Physiology
- Department of Chemical Biology
- 44227-Dortmund
- Germany
- Fakultät Chemie
| | - Herbert Waldmann
- Max Planck Institute of Molecular Physiology
- Department of Chemical Biology
- 44227-Dortmund
- Germany
- Fakultät Chemie
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44
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Rajkumar K, Suman P, Raju BC. Facile construction of novel heterocyclic compounds: three-component, one-pot synthesis of 2-hydroxybenzoyl-1,2-dihydropyridine-3-carboxylates, ketones, pyridone-3-carboxylates and benzopyrido-1,3-oxazole-4-carboxylates. RSC Adv 2015. [DOI: 10.1039/c5ra10185a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
A facile method has been developed for the preparation of novel heterocyclic compounds facilitated by 3-oxobutanoates and 1,3-diketones possessing a trihalo group. This three-component, one-pot protocol provided heterocyclic compounds without a catalyst.
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Affiliation(s)
- Kommera Rajkumar
- Natural Products Chemistry Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500 007
- India
- AcSIR-Indian Institute of Chemical Technology
| | - Pathi Suman
- Natural Products Chemistry Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500 007
- India
| | - Bhimapaka China Raju
- Natural Products Chemistry Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500 007
- India
- AcSIR-Indian Institute of Chemical Technology
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45
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Iaroshenko VO, Mkrtchyan S, Gevorgyan A, Grigoryan T, Villinger A, Langer P. Synthesis of 4-quinolones, benzopyran derivatives and other fused systems based on the domino ANRORC reactions of (ortho-fluoro)-3-benzoylchromones. RSC Adv 2015. [DOI: 10.1039/c5ra02978c] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This method provides a valuable one-pot shortcut for the synthesis of 4-quinolones, benzopyran derivatives and other fused systems from (ortho-fluoro)-3-benzoylchromones.
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Affiliation(s)
- Viktor O. Iaroshenko
- Institut für Chemie
- Universität Rostock
- 18059 Rostock
- Germany
- National Taras Shevchenko University
| | | | | | | | | | - Peter Langer
- Institut für Chemie
- Universität Rostock
- 18059 Rostock
- Germany
- Leibniz-Institut für Katalyse e. v. an der Universität Rostock
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46
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Bansode AH, Shaikh AC, Kavthe RD, Thorat S, Gonnade RG, Patil NT. Catalyst-Dependent Selectivity in the Relay Catalytic Branching Cascade. Chemistry 2014; 21:2319-23. [DOI: 10.1002/chem.201405736] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Indexed: 01/03/2023]
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47
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2-Alkoxy-3,4-dihydropyrans as modular substrates to construct polyheterocycles by reacting with NH2-containing bisnucleophiles. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.10.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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48
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Mo DL, Wink DJ, Anderson LL. Solvent-Controlled Bifurcated Cascade Process for the Selective Preparation of Dihydrocarbazoles or Dihydropyridoindoles. Chemistry 2014; 20:13217-25. [DOI: 10.1002/chem.201403268] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2014] [Indexed: 01/25/2023]
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49
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van Hattum H, Waldmann H. Biology-oriented synthesis: harnessing the power of evolution. J Am Chem Soc 2014; 136:11853-9. [PMID: 25074019 DOI: 10.1021/ja505861d] [Citation(s) in RCA: 187] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
For scientists to gain a better understanding of nature, biological research is greatly aided by small-molecule modulators that perturb protein activity without fundamentally altering the underlying biological systems. The number of possible interfering molecules, however, is so vast that, due to limitations in existing matter and time required for synthesis, they cannot be covered comprehensively. Because proteins and their cognate natural product ligands and substrates co-evolved, these naturally occurring ligands can serve as structural starting points to explore the biologically relevant chemical space. To this end, known natural products are structurally classified on the basis of their core scaffolds and hierarchically arranged in the "natural product tree", which can be annotated for bioactivity and intuitively navigated with currently available software. Biologically relevant scaffolds inspire the synthesis of compound libraries enriched in biological activity. This Perspective describes the development of "biology-oriented synthesis" as a guiding principle to harness the power of evolution in the quest for novel bioactive small molecules for chemical biology research and drug discovery.
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Affiliation(s)
- Hilde van Hattum
- Max Planck Institute of Molecular Physiology , Otto-Hahn-Strasse 11, 44227 Dortmund, Germany
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50
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Free-radical selective functionalization of 1,4-naphthoquinones by perfluorodiacyl peroxides. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.05.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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