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Calcaterra A, Mangiardi L, Delle Monache G, Quaglio D, Balducci S, Berardozzi S, Iazzetti A, Franzini R, Botta B, Ghirga F. The Pictet-Spengler Reaction Updates Its Habits. Molecules 2020; 25:E414. [PMID: 31963860 PMCID: PMC7024544 DOI: 10.3390/molecules25020414] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 01/05/2020] [Accepted: 01/09/2020] [Indexed: 12/31/2022] Open
Abstract
The Pictet-Spengler reaction (P-S) is one of the most direct, efficient, and variable synthetic method for the construction of privileged pharmacophores such as tetrahydro-isoquinolines (THIQs), tetrahydro-β-carbolines (THBCs), and polyheterocyclic frameworks. In the lustro (five-year period) following its centenary birthday, the P-S reaction did not exit the stage but it came up again on limelight with new features. This review focuses on the interesting results achieved in this period (2011-2015), analyzing the versatility of this reaction. Classic P-S was reported in the total synthesis of complex alkaloids, in combination with chiral catalysts as well as for the generation of libraries of compounds in medicinal chemistry. The P-S has been used also in tandem reactions, with the sequences including ring closing metathesis, isomerization, Michael addition, and Gold- or Brønsted acid-catalyzed N-acyliminium cyclization. Moreover, the combination of P-S reaction with Ugi multicomponent reaction has been exploited for the construction of highly complex polycyclic architectures in few steps and high yields. The P-S reaction has also been successfully employed in solid-phase synthesis, affording products with different structures, including peptidomimetics, synthetic heterocycles, and natural compounds. Finally, the enzymatic version of P-S has been reported for biosynthesis, biotransformations, and bioconjugations.
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Affiliation(s)
- Andrea Calcaterra
- Department of Chemistry and Technology of Drugs, “Department of Excellence 2018−2022”, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (L.M.); (G.D.M.); (D.Q.); (S.B.); (A.I.); (R.F.); (B.B.)
| | - Laura Mangiardi
- Department of Chemistry and Technology of Drugs, “Department of Excellence 2018−2022”, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (L.M.); (G.D.M.); (D.Q.); (S.B.); (A.I.); (R.F.); (B.B.)
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Viale Regina Elena 291, 00161 Rome, Italy;
| | - Giuliano Delle Monache
- Department of Chemistry and Technology of Drugs, “Department of Excellence 2018−2022”, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (L.M.); (G.D.M.); (D.Q.); (S.B.); (A.I.); (R.F.); (B.B.)
| | - Deborah Quaglio
- Department of Chemistry and Technology of Drugs, “Department of Excellence 2018−2022”, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (L.M.); (G.D.M.); (D.Q.); (S.B.); (A.I.); (R.F.); (B.B.)
| | - Silvia Balducci
- Department of Chemistry and Technology of Drugs, “Department of Excellence 2018−2022”, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (L.M.); (G.D.M.); (D.Q.); (S.B.); (A.I.); (R.F.); (B.B.)
| | - Simone Berardozzi
- Department of Chemistry and Applied Biosciences, ETH-Zürich, Vladimir-Prelog Weg 4, 8093 Zürich, Switzerland
| | - Antonia Iazzetti
- Department of Chemistry and Technology of Drugs, “Department of Excellence 2018−2022”, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (L.M.); (G.D.M.); (D.Q.); (S.B.); (A.I.); (R.F.); (B.B.)
| | - Roberta Franzini
- Department of Chemistry and Technology of Drugs, “Department of Excellence 2018−2022”, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (L.M.); (G.D.M.); (D.Q.); (S.B.); (A.I.); (R.F.); (B.B.)
| | - Bruno Botta
- Department of Chemistry and Technology of Drugs, “Department of Excellence 2018−2022”, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (L.M.); (G.D.M.); (D.Q.); (S.B.); (A.I.); (R.F.); (B.B.)
| | - Francesca Ghirga
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Viale Regina Elena 291, 00161 Rome, Italy;
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Abstract
Traceless solid-phase synthesis represents an ultimate sophisticated synthetic strategy on insoluble supports. Compounds synthesized on solid supports can be released without a trace of the linker that was used to tether the intermediates during the synthesis. Thus, the target products are composed only of the components (atoms, functional groups) inherent to the target core structure. A wide variety of synthetic strategies have been developed to prepare products in a traceless manner, and this review is dedicated to all aspects of traceless solid-phase organic synthesis. Importantly, the synthesis does not need to be carried out on a linker designed for traceless synthesis; most of the synthetic approaches described herein were developed using standard, commercially available linkers (originally devised for solid-phase peptide synthesis). The type of structure prepared in a traceless fashion is not restricted. The individual synthetic approaches are divided into eight sections, each devoted to a different methodology for traceless synthesis. Each section consists of a brief outline of the synthetic strategy followed by a description of individual reported syntheses.
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Affiliation(s)
- Naděžda Cankařová
- Department of Organic Chemistry, Faculty of Science , Palacky University , 17. Listopadu 12 , Olomouc , 771 46 , Czech Republic
| | - Eva Schütznerová
- Department of Organic Chemistry, Faculty of Science , Palacky University , 17. Listopadu 12 , Olomouc , 771 46 , Czech Republic
| | - Viktor Krchňák
- Department of Organic Chemistry, Faculty of Science , Palacky University , 17. Listopadu 12 , Olomouc , 771 46 , Czech Republic.,Department of Chemistry and Biochemistry , University of Notre Dame , 251 Nieuwland Science Center , Notre Dame , Indiana 46556 , United States
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3
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Bertamino A, Lauro G, Ostacolo C, Di Sarno V, Musella S, Ciaglia T, Campiglia P, Bifulco G, Gomez-Monterrey IM. Ring-Fused Cyclic Aminals from Tetrahydro-β-carboline-Based Dipeptide Compounds. J Org Chem 2017; 82:12014-12027. [PMID: 29091729 DOI: 10.1021/acs.joc.7b01656] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
An acid- and oxidant-promoted intramolecular cyclization of a tetrahydro-β-carboline-based dipeptide has been developed to prepare new indole-fused aminoacetals. This approach involves N-acyliminium formation from readily available precursors and cyclization under mild reaction conditions. The diastereoselectivity in the formation of the products is influenced by the specific substituents of the starting reagents, which has been rationalized analyzing the energy profile of the related reactions and the relative stability of the proposed structures based on DFT computational methods.
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Affiliation(s)
- Alessia Bertamino
- Dipartimento di Farmacia, Università di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano, Italy
| | - Gianluigi Lauro
- Dipartimento di Farmacia, Università di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano, Italy
| | - Carmine Ostacolo
- Dipartimento di Farmacia, Università di Napoli "Federico II" , Via Montesano 49, 80131 Napoli, Italy
| | - Veronica Di Sarno
- Dipartimento di Farmacia, Università di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano, Italy
| | - Simona Musella
- Dipartimento di Farmacia, Università di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano, Italy
| | - Tania Ciaglia
- Dipartimento di Farmacia, Università di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano, Italy
| | - Pietro Campiglia
- Dipartimento di Farmacia, Università di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano, Italy.,Fondazione EBRIS, Via Salvatore de Renzi, 3, 84125 Salerno, Italy
| | - Giuseppe Bifulco
- Dipartimento di Farmacia, Università di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano, Italy
| | - Isabel M Gomez-Monterrey
- Dipartimento di Farmacia, Università di Napoli "Federico II" , Via Montesano 49, 80131 Napoli, Italy
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4
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Affiliation(s)
- Peng Wu
- Department
of Chemistry, Technical University of Denmark, Kongens Lyngby DK-2800, Denmark
- Department
of Immunology and Microbiology, University of Copenhagen, Copenhagen DK-2200, Denmark
- Center
for the Science of Therapeutics, Broad Institute of MIT and Harvard, Cambridge, Massachusetts 02142, United States
- Department
of Medicine, Harvard Medical School, Boston, Massachusetts 02115, United States
- Renal
Division, Brigham and Women’s Hospital, Boston, Massachusetts 02115, United States
| | - Thomas E. Nielsen
- Department
of Chemistry, Technical University of Denmark, Kongens Lyngby DK-2800, Denmark
- Department
of Immunology and Microbiology, University of Copenhagen, Copenhagen DK-2200, Denmark
- Singapore
Centre for Environmental Life Sciences Engineering, Nanyang Technological University, Singapore 637551, Singapore
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5
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Dutta M, Mandal SM, Pegu R, Pratihar S. PdII/AgI-Catalyzed Room-Temperature Reaction of γ-Hydroxy Lactams: Mechanism, Scope, and Antistaphylococcal Activity. J Org Chem 2017; 82:2193-2198. [DOI: 10.1021/acs.joc.6b02378] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Manali Dutta
- Department
of Chemical Sciences, Tezpur University, Napaam, Tezpur, Assam 784028, India
| | - Santi M. Mandal
- Central
Research Facility, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Rupa Pegu
- Department
of Chemical Sciences, Tezpur University, Napaam, Tezpur, Assam 784028, India
| | - Sanjay Pratihar
- Department
of Chemical Sciences, Tezpur University, Napaam, Tezpur, Assam 784028, India
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6
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Rossi-Ashton JA, Taylor RJK, Unsworth WP. Selective synthesis of three product classes from imine and carboxylic acid precursors via direct imine acylation. Org Biomol Chem 2017; 15:7527-7532. [DOI: 10.1039/c7ob02039b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Three divergent procedures allow the selective generation of δ-lactams, β-lactams and tetrahydropyrimidinones from common imine and carboxylic acid precursors.
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7
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Mao LL, Li CC, Yang Q, Cheng MX, Yang SD. One-pot synthesis of α-aminophosphonates via a cascade sequence of allylamine isomerization/hydrophosphonylation. Chem Commun (Camb) 2017; 53:4473-4476. [DOI: 10.1039/c7cc01391d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Rh/Ni-catalyzed cascade sequence of allylamine isomerization and hydrophosphonylation to synthesize α-aminophosphonates has been disclosed.
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Affiliation(s)
- Liu-Liang Mao
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Chen-Chen Li
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Qiang Yang
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Ming-Xing Cheng
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Shang-Dong Yang
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000
- P. R. China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
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8
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Aranzamendi E, Arrasate S, Sotomayor N, González‐Díaz H, Lete E. Chiral Brønsted Acid-Catalyzed Enantioselective α-Amidoalkylation Reactions: A Joint Experimental and Predictive Study. ChemistryOpen 2016; 5:540-549. [PMID: 28032023 PMCID: PMC5167290 DOI: 10.1002/open.201600120] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Indexed: 01/01/2023] Open
Abstract
Enamides with a free NH group have been evaluated as nucleophiles in chiral Brønsted acid-catalyzed enantioselective α-amidoalkylation reactions of bicyclic hydroxylactams for the generation of quaternary stereocenters. A quantitative structure-reactivity relationship (QSRR) method has been developed to find a useful tool to rationalize the enantioselectivity in this and related processes and to orient the catalyst choice. This correlative perturbation theory (PT)-QSRR approach has been used to predict the effect of the structure of the substrate, nucleophile, and catalyst, as well as the experimental conditions, on the enantioselectivity. In this way, trends to improve the experimental results could be found without engaging in a long-term empirical investigation.
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Affiliation(s)
- Eider Aranzamendi
- Departamento de Química Orgánica IIFacultad de Ciencia y TecnologíaUniversidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU)Apdo. 64448080BilbaoSpain
| | - Sonia Arrasate
- Departamento de Química Orgánica IIFacultad de Ciencia y TecnologíaUniversidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU)Apdo. 64448080BilbaoSpain
| | - Nuria Sotomayor
- Departamento de Química Orgánica IIFacultad de Ciencia y TecnologíaUniversidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU)Apdo. 64448080BilbaoSpain
| | - Humberto González‐Díaz
- Departamento de Química Orgánica IIFacultad de Ciencia y TecnologíaUniversidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU)Apdo. 64448080BilbaoSpain
- IKERBASQUEBasque Foundation for Science48080BilbaoSpain
| | - Esther Lete
- Departamento de Química Orgánica IIFacultad de Ciencia y TecnologíaUniversidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU)Apdo. 64448080BilbaoSpain
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9
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Hansen CL, Ohm RG, Olsen LB, Ascic E, Tanner D, Nielsen TE. Catalytic Enantioselective Synthesis of Tetrahydocarbazoles and Exocyclic Pictet–Spengler-Type Reactions. Org Lett 2016; 18:5990-5993. [DOI: 10.1021/acs.orglett.6b02718] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Casper L. Hansen
- Department
of Chemistry, Technical University of Denmark, DK-2800 Kgs Lyngby, Denmark
| | - Ragnhild G. Ohm
- Department
of Chemistry, Technical University of Denmark, DK-2800 Kgs Lyngby, Denmark
| | - Lasse B. Olsen
- Department
of Chemistry, Technical University of Denmark, DK-2800 Kgs Lyngby, Denmark
| | - Erhad Ascic
- Department
of Chemistry, Technical University of Denmark, DK-2800 Kgs Lyngby, Denmark
| | - David Tanner
- Department
of Chemistry, Technical University of Denmark, DK-2800 Kgs Lyngby, Denmark
| | - Thomas E. Nielsen
- Department
of Chemistry, Technical University of Denmark, DK-2800 Kgs Lyngby, Denmark
- Singapore
Centre on Environmental Life Sciences Engineering, Nanyang Technological University, Singapore 637551, Singapore
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10
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Inamdar SM, Chakrabarty I, Patil NT. A unified approach to pyrrole-embedded aza-heterocyclic scaffolds based on the RCM/isomerization/cyclization cascade catalyzed by a Ru/B-H binary catalyst system. RSC Adv 2016. [DOI: 10.1039/c6ra05646f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
An easy and straightforward preparation of pyrrole-embedded aza-heterocyclic scaffolds employing a Ru/B-H binary catalyst system has been developed.
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Affiliation(s)
- Suleman M. Inamdar
- Organic Chemistry Division
- CSIR-National Chemical Laboratory
- Pune-411 008
- India
| | | | - Nitin T. Patil
- Organic Chemistry Division
- CSIR-National Chemical Laboratory
- Pune-411 008
- India
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11
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Komnatnyy VV, Taveras KM, Nandurkar NS, Le Quement ST, Givskov M, Nielsen TE. Synthesis of Substituted γ- and δ-Lactams through Mannich-Type Reactions of Solid-SupportedN-Acyliminium Ions. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500054] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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12
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Petersen R, Le Quement ST, Nielsen TE. Synthesis of a natural product-like compound collection through oxidative cleavage and cyclization of linear peptides. Angew Chem Int Ed Engl 2014; 53:11778-82. [PMID: 25214457 DOI: 10.1002/anie.201405747] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Indexed: 11/08/2022]
Abstract
Massive efforts in molecular library synthesis have strived for the development of synthesis methodology which systematically delivers natural product-like compounds of high spatial complexity. Herein, we present a conceptually simple approach that builds on the power of solid-phase peptide synthesis to assemble precursor peptides (oligomers) designed to undergo oxidative cascade reactions. By harnessing the structural side-chain diversity and inherent stereochemical features offered by readily available amino acids (monomers), a proof-of-concept collection of 54 skeletally and stereochemically diverse compounds was generated, and selected compounds were elaborated into isoform-selective metalloprotease inhibitors.
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Affiliation(s)
- Rico Petersen
- Department of Chemistry, Technical University of Denmark, Kemitorvet, Building 201, 2800 Kgs. Lyngby (Denmark)
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13
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Haya L, Pardo JI, Mainar AM, Fatás E, Urieta JS. Regioselectivity of Electrochemical C-H Functionalization Via Iminium Ion. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.07.092] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Petersen R, Le Quement ST, Nielsen TE. Synthesis of a Natural Product-Like Compound Collection through Oxidative Cleavage and Cyclization of Linear Peptides. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201405747] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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15
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Ishoey M, Nielsen TE. Synthesis of Heterocycles through Transition Metal-Catalyzed Isomerization Reactions. Chemistry 2014; 20:8832-40. [DOI: 10.1002/chem.201400216] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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16
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Hansen CL, Clausen JW, Ohm RG, Ascic E, Le Quement ST, Tanner D, Nielsen TE. Ruthenium Hydride/Brønsted Acid-Catalyzed Tandem Isomerization/N-Acyliminium Cyclization Sequence for the Synthesis of Tetrahydro-β-carbolines. J Org Chem 2013; 78:12545-65. [DOI: 10.1021/jo402192s] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Casper L. Hansen
- Department
of Chemistry, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
| | - Janie W. Clausen
- Department
of Chemistry, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
| | - Ragnhild G. Ohm
- Department
of Chemistry, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
| | - Erhad Ascic
- Department
of Chemistry, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
| | | | - David Tanner
- Department
of Chemistry, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
| | - Thomas E. Nielsen
- Department
of Chemistry, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
- Singapore
Centre on Environmental Life Sciences Engineering, Nanyang Technological University, Singapore 637551, Singapore
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17
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Lee YS, Alam MM, Keri RS. Enantioselective Reactions ofN-Acyliminium Ions Using Chiral Organocatalysts. Chem Asian J 2013; 8:2906-19. [DOI: 10.1002/asia.201300814] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Indexed: 11/06/2022]
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18
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Gómez-SanJuan A, Sotomayor N, Lete E. RCM Approach to Complex Polycyclic α-Hydroxy γ-Lactams: Synthesis of Indolizinones and Pyrroloazepinones. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300889] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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19
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Komnatnyy VV, Givskov M, Nielsen TE. Solid-phase synthesis of structurally diverse heterocycles by an amide-ketone condensation/N-acyliminium pictet-spengler sequence. Chemistry 2012; 18:16793-800. [PMID: 23132763 DOI: 10.1002/chem.201202745] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Indexed: 11/12/2022]
Abstract
An efficient approach for the solid-phase synthesis of structurally diverse heterocyclic compounds is presented. Under acidic reaction conditions, peptidic levulinamides undergo intramolecular ketone-amide condensation reactions to form cyclic N-acyliminium intermediates. In the presence of a tethered nucleophile, a second cyclization reaction results in the formation of a fused bicyclic ring system. The scope of the methodology was demonstrated by several combinations of substituted ketones and nucleophiles, the latter conveniently originating from amino acids with functionalized side chains, such as tryptophan, substituted phenylalanines, and cysteine. The cyclization sequence provides diastereomerically pure products in high yields. In one extension of the methodology, the resulting relative stereochemistry of the products enables the formation of bridged ring systems by a unique cyclative release mechanism.
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Affiliation(s)
- Vitaly V Komnatnyy
- Department of Chemistry, Technical University of Denmark, Lyngby, Denmark
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20
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Wang R, Liu ZQ. Solvent-Free and Catalyst-Free Biginelli Reaction To Synthesize Ferrocenoyl Dihydropyrimidine and Kinetic Method To Express Radical-Scavenging Ability. J Org Chem 2012; 77:3952-8. [DOI: 10.1021/jo300282y] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rui Wang
- Department of Organic Chemistry, College of Chemistry, Jilin University, Changchun 130021, China
| | - Zai-Qun Liu
- Department of Organic Chemistry, College of Chemistry, Jilin University, Changchun 130021, China
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21
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Ascic E, Hansen CL, Le Quement ST, Nielsen TE. Synthesis of tetrahydro-β-carbolines via isomerization of N-allyltryptamines: a metal-catalyzed variation on the Pictet–Spengler theme. Chem Commun (Camb) 2012; 48:3345-7. [DOI: 10.1039/c2cc17704h] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Nandurkar NS, Petersen R, Qvortrup K, Komnatnyy VV, Taveras KM, Le Quement ST, Frauenlob R, Givskov M, Nielsen TE. A convenient procedure for the solid-phase synthesis of hydroxamic acids on PEGA resins. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.10.103] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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23
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Martínez‐Estibalez U, Gómez‐SanJuan A, García‐Calvo O, Aranzamendi E, Lete E, Sotomayor N. Strategies Based on Aryllithium and
N
‐Acyliminium Ion Cyclizations for the Stereocontrolled Synthesis of Alkaloids and Related Systems. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100123] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Unai Martínez‐Estibalez
- Departamento de Química Orgánica II, Facultad de Ciencia y Tecnología, Universidad del País Vasco/Euskal Herriko Unibertsitatea, Apartado 644, 48080 Bilbao, Spain, Fax: +34‐94‐6012478
- Present address: Biomendi Laboratorios Farmacéuticos, Polígono Bernedo s/n, 01118 Bernedo, Spain
| | - Asier Gómez‐SanJuan
- Departamento de Química Orgánica II, Facultad de Ciencia y Tecnología, Universidad del País Vasco/Euskal Herriko Unibertsitatea, Apartado 644, 48080 Bilbao, Spain, Fax: +34‐94‐6012478
| | - Oihane García‐Calvo
- Departamento de Química Orgánica II, Facultad de Ciencia y Tecnología, Universidad del País Vasco/Euskal Herriko Unibertsitatea, Apartado 644, 48080 Bilbao, Spain, Fax: +34‐94‐6012478
| | - Eider Aranzamendi
- Departamento de Química Orgánica II, Facultad de Ciencia y Tecnología, Universidad del País Vasco/Euskal Herriko Unibertsitatea, Apartado 644, 48080 Bilbao, Spain, Fax: +34‐94‐6012478
| | - Esther Lete
- Departamento de Química Orgánica II, Facultad de Ciencia y Tecnología, Universidad del País Vasco/Euskal Herriko Unibertsitatea, Apartado 644, 48080 Bilbao, Spain, Fax: +34‐94‐6012478
| | - Nuria Sotomayor
- Departamento de Química Orgánica II, Facultad de Ciencia y Tecnología, Universidad del País Vasco/Euskal Herriko Unibertsitatea, Apartado 644, 48080 Bilbao, Spain, Fax: +34‐94‐6012478
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Boutard N, Dufour-Gallant J, Deaudelin P, Lubell WD. Pyrrolo[3,2-e][1,4]diazepin-2-one Synthesis: A Head-to-Head Comparison of Soluble versus Insoluble Supports. J Org Chem 2011; 76:4533-45. [DOI: 10.1021/jo200424q] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Nicolas Boutard
- Chemistry Department, Université de Montréal, C.P. 6128, Succursale Centre-Ville, Montreal, Quebec H3C 3J7, Canada
| | - Julien Dufour-Gallant
- Chemistry Department, Université de Montréal, C.P. 6128, Succursale Centre-Ville, Montreal, Quebec H3C 3J7, Canada
| | - Philippe Deaudelin
- Chemistry Department, Université de Montréal, C.P. 6128, Succursale Centre-Ville, Montreal, Quebec H3C 3J7, Canada
| | - William D. Lubell
- Chemistry Department, Université de Montréal, C.P. 6128, Succursale Centre-Ville, Montreal, Quebec H3C 3J7, Canada
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25
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Ascic E, Jensen JF, Nielsen TE. Synthesis of Heterocycles through a Ruthenium-Catalyzed Tandem Ring-Closing Metathesis/Isomerization/N-Acyliminium Cyclization Sequence. Angew Chem Int Ed Engl 2011; 50:5188-91. [DOI: 10.1002/anie.201100417] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2011] [Indexed: 11/08/2022]
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Ascic E, Jensen JF, Nielsen TE. Synthesis of Heterocycles through a Ruthenium-Catalyzed Tandem Ring-Closing Metathesis/Isomerization/N-Acyliminium Cyclization Sequence. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201100417] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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