1
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A More Sustainable Isocyanide Synthesis from N-Substituted Formamides Using Phosphorus Oxychloride in the Presence of Triethylamine as Solvent. Molecules 2022; 27:molecules27206850. [PMID: 36296444 PMCID: PMC9608669 DOI: 10.3390/molecules27206850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 10/05/2022] [Accepted: 10/10/2022] [Indexed: 11/24/2022] Open
Abstract
A simple, green, and highly efficient protocol for the synthesis of isocyanides is described. The reaction involves dehydration of formamides with phosphorus oxychloride in the presence of triethylamine as solvent at 0 °C. The product isocyanides were obtained in high to excellent yields in less than 5 min. The method offers several advantages including increased synthesis speed, relatively mild conditions, and rapid access to large numbers of functionalized isocyanides, excellent purity, increased safety, and minimal reaction waste. The new approach of synthesising dehydrative isocyanides from formamides is significantly more environmentally-friendly than prior methods.
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2
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Jaffett VA, Fitz-Henley JN, Khalifa MM, Guzei IA, Golden JE. Diastereoselective, Multicomponent Synthesis of Pyrrolopyrazinoquinazolinones via a Tandem Quinazolinone Rearrangement/Intramolecular Ring Closure of Tautomeric ( Z)-Benzamidines. Org Lett 2021; 23:5799-5803. [PMID: 34251832 PMCID: PMC8448149 DOI: 10.1021/acs.orglett.1c01955] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An expedient route to enantiopure, diastereomeric pyrrolopyrazinoquinazolinones was developed following the discovery of a domino quinazolinone rearrangement-intramolecular cyclization of N-H benzamidines. A Ugi-Mumm-Staudinger sequence employing an optically pure proline derivative gave quinazolinones that, upon N-Boc deprotection, rearranged to tautomeric Z-benzamidines. Subsequent spontaneous cyclization afforded 15 diastereomeric pyrazinoquinazolinone pairs in up to 83% overall yield and 89:11 d.r which were separated easily via routine chromatographic purification-the only one required in the entire process.
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Affiliation(s)
- Victor A. Jaffett
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI 53706, Unites States
| | - Jhewelle N. Fitz-Henley
- Division of Pharmaceutical Sciences, School of Pharmacy, University of Wisconsin-Madison, 777 Highland Avenue, Madison, WI 53705, Unites States
| | - Muhammad M. Khalifa
- Division of Pharmaceutical Sciences, School of Pharmacy, University of Wisconsin-Madison, 777 Highland Avenue, Madison, WI 53705, Unites States
| | - Ilia A. Guzei
- Molecular Structure Laboratory, Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI 53706, Unites States
| | - Jennifer E. Golden
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI 53706, Unites States
- Division of Pharmaceutical Sciences, School of Pharmacy, University of Wisconsin-Madison, 777 Highland Avenue, Madison, WI 53705, Unites States
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3
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Smajlagic I, Carlson B, Dudding T. Brønsted Acid Organocatalyzed Three-Component Hydroamidation Reactions of Vinyl Ethers. J Org Chem 2021; 86:4171-4181. [PMID: 33626274 DOI: 10.1021/acs.joc.0c03017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Hydroamidation of carbon-carbon double bonds is an attractive strategy for installing nitrogen functionality into molecular scaffolds and, with it, increasing molecular complexity. To date, metal-based approaches have dominated this area of chemical synthesis, despite the drawbacks of air and moisture sensitivity, limited functional group tolerance, toxicity, and/or high cost often associated with using metals. Here, in offering an alternative solution, we disclose an operationally simple, metal-free, one-pot, regioselective, multicomponent synthetic procedure for the hydroamidation of carbon-carbon double bonds. This method features mild reaction conditions and utilizes isocyanides and vinyl ethers for the rapid and modular synthesis of privileged α-oxygenated amide scaffolds. In unraveling the mechanistic underpinning of this non-metal-based reactivity, we present kinetic solvent isotope effect studies, variable time normalization analysis, and density functional theory computations offering insight into the mechanism of this multistep catalytic hydroamidation process.
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Affiliation(s)
- Ivor Smajlagic
- Department of Chemistry, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, ON L2S 3A1, Canada
| | - Brenden Carlson
- Department of Chemistry, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, ON L2S 3A1, Canada
| | - Travis Dudding
- Department of Chemistry, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, ON L2S 3A1, Canada
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4
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Shiri M, Farajinia-Lehi N, Salehi P, Tanbakouchian Z. Transition Metal and Inner Transition Metal Catalyzed Amide Derivatives Formation through Isocyanide Chemistry. SYNTHESIS-STUTTGART 2020. [DOI: 10.1055/s-0040-1707357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AbstractThe synthesis of amides is a substantial research area in organic chemistry because of their ubiquitous presence in natural products and bioactive molecules. The use of easily accessible isocyanides as amidoyl (carbamoyl) synthons in cross-coupling reactions using transition metal and inner transition metöal catalysts is a current trend in this area. Isocyanides, owing to their coordination ability as a ligand and inherent electronic properties for reactions with various partners, have expanded the potential application of these transformations for the preparation of novel synthetic molecules and pharmaceutical candidates. This review gives an overview of the achievements in isocyanide-based transition metal and inner transition metal catalyzed amide formation and discusses highlights of the proposed distinct mechanisms.1 Introduction2 Synthesis of Arenecarboxamides3 Synthesis of Alkanamides4 Synthesis of Cyclic Amides5 Formation of Alkynamides6 Formation of Acrylamide-like Molecules7 Formation of Ureas and Carbamates8 Conclusion
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Affiliation(s)
- Morteza Shiri
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University
- Department of R&D, Pakshoo Industrial Group, Second Alley
| | | | - Parvin Salehi
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University
| | - Zahra Tanbakouchian
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University
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5
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Wang Y, Wang G, Peshkov AA, Yao R, Hasan M, Zaman M, Liu C, Kashtanov S, Pereshivko OP, Peshkov VA. Controlling the stereochemistry in 2-oxo-aldehyde-derived Ugi adducts through the cinchona alkaloid-promoted electrophilic fluorination. Beilstein J Org Chem 2020; 16:1963-1973. [PMID: 32831953 PMCID: PMC7431756 DOI: 10.3762/bjoc.16.163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Accepted: 07/30/2020] [Indexed: 11/23/2022] Open
Abstract
In this report, we introduce a new strategy for controlling the stereochemistry in Ugi adducts. Instead of controlling stereochemistry directly during the Ugi reaction we have attempted to stereodefine the chiral center at the peptidyl position through the post-Ugi functionalization. In order to achieve this, we chose to study 2-oxo-aldehyde-derived Ugi adducts many of which partially or fully exist in the enol form that lacks the aforementioned chiral center. This in turn led to their increased nucleophilicity as compared to the standard Ugi adducts. As such, the stereocenter at the peptidyl position could be installed and stereodefined through the reaction with a suitable electrophile. Towards this end, we were able to deploy an asymmetric cinchona alkaloid-promoted electrophilic fluorination producing enantioenriched post-Ugi adducts fluorinated at the peptidyl position.
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Affiliation(s)
- Yuqing Wang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Dushu Lake Campus, Suzhou, 215123, P.R. China
| | - Gaigai Wang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Dushu Lake Campus, Suzhou, 215123, P.R. China
| | - Anatoly A Peshkov
- Department of Chemistry, School of Science and Technology, Nazarbayev University, 53 Kabanbay Batyr Ave, Block 7, Nur-Sultan 010000, Republic of Kazakhstan.,Saint Petersburg State University, Saint Petersburg 199034, Russian Federation
| | - Ruwei Yao
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Dushu Lake Campus, Suzhou, 215123, P.R. China
| | - Muhammad Hasan
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Dushu Lake Campus, Suzhou, 215123, P.R. China
| | - Manzoor Zaman
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Dushu Lake Campus, Suzhou, 215123, P.R. China
| | - Chao Liu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Dushu Lake Campus, Suzhou, 215123, P.R. China
| | - Stepan Kashtanov
- Department of Chemistry, Xi'an Jiaotong-Liverpool University, Suzhou, 215123, P.R. China
| | - Olga P Pereshivko
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Dushu Lake Campus, Suzhou, 215123, P.R. China.,Department of Chemistry, School of Science and Technology, Nazarbayev University, 53 Kabanbay Batyr Ave, Block 7, Nur-Sultan 010000, Republic of Kazakhstan
| | - Vsevolod A Peshkov
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Dushu Lake Campus, Suzhou, 215123, P.R. China.,Department of Chemistry, School of Science and Technology, Nazarbayev University, 53 Kabanbay Batyr Ave, Block 7, Nur-Sultan 010000, Republic of Kazakhstan.,The Environment and Resource Efficiency Cluster (EREC), Nazarbayev University, Nur-Sultan, Republic of Kazakhstan
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6
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Vitali Forconesi G, Banfi L, Basso A, Lambruschini C, Moni L, Riva R. Synthesis of Polyoxygenated Heterocycles by Diastereoselective Functionalization of a Bio-Based Chiral Aldehyde Exploiting the Passerini Reaction. Molecules 2020; 25:molecules25143227. [PMID: 32679733 PMCID: PMC7397154 DOI: 10.3390/molecules25143227] [Citation(s) in RCA: 3] [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: 06/22/2020] [Revised: 07/06/2020] [Accepted: 07/09/2020] [Indexed: 11/16/2022] Open
Abstract
A chiral bio-based building block, prepared by the lipase-mediated desymmetrization of an erythritol derivative, was further functionalized and then submitted to stereoselective Passerini reactions, allowing the synthesis of a small library of new molecules. Thanks to the presence of different functional groups, further cyclizations were performed providing bicyclic polyoxygenated heterocycles.
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Affiliation(s)
- Gabriella Vitali Forconesi
- Dipartimento di Chimica e Chimica Industriale, Università di Genova, via Dodecaneso 31, 16146 Genova, Italy; (G.V.F.); (L.B.); (A.B.); (C.L.); (L.M.)
| | - Luca Banfi
- Dipartimento di Chimica e Chimica Industriale, Università di Genova, via Dodecaneso 31, 16146 Genova, Italy; (G.V.F.); (L.B.); (A.B.); (C.L.); (L.M.)
| | - Andrea Basso
- Dipartimento di Chimica e Chimica Industriale, Università di Genova, via Dodecaneso 31, 16146 Genova, Italy; (G.V.F.); (L.B.); (A.B.); (C.L.); (L.M.)
| | - Chiara Lambruschini
- Dipartimento di Chimica e Chimica Industriale, Università di Genova, via Dodecaneso 31, 16146 Genova, Italy; (G.V.F.); (L.B.); (A.B.); (C.L.); (L.M.)
| | - Lisa Moni
- Dipartimento di Chimica e Chimica Industriale, Università di Genova, via Dodecaneso 31, 16146 Genova, Italy; (G.V.F.); (L.B.); (A.B.); (C.L.); (L.M.)
| | - Renata Riva
- Dipartimento di Farmacia, Università di Genova, viale Cembrano 4, 16147 Genova, Italy
- Correspondence: ; Tel.: +39-010-3536106
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7
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Murlykina MV, Kolomiets OV, Kornet MM, Sakhno YI, Desenko SM, Dyakonenko VV, Shishkina SV, Brazhko OA, Musatov VI, Tsygankov AV, Van der Eycken EV, Chebanov VA. Doebner-type pyrazolopyridine carboxylic acids in an Ugi four-component reaction. Beilstein J Org Chem 2019; 15:1281-1288. [PMID: 31293676 PMCID: PMC6604699 DOI: 10.3762/bjoc.15.126] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Accepted: 05/17/2019] [Indexed: 11/23/2022] Open
Abstract
Substituted 1H-pyrazolo[3,4-b]pyridine-4- and 1H-pyrazolo[3,4-b]pyridine-6-carboxamides have been synthetized through a Doebner-Ugi multicomponent reaction sequence in a convergent and versatile manner using diversity generation strategies: combination of two multicomponent reactions and conditions-based divergence strategy. The target products contain as pharmacophores pyrazolopyridine and peptidomimetic moieties with four points of diversity introduced from readily available starting materials including scaffold diversity. A small focused compound library of 23 Ugi products was created and screened for antibacterial activity.
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Affiliation(s)
- Maryna V Murlykina
- Division of Chemistry of Functional Materials, State Scientific Institution "Institute for Single Crystals" of National Academy of Sciences of Ukraine, Nauky Ave., 60, 61072, Kharkiv, Ukraine.,Faculty of Chemistry, V. N. Karazin Kharkiv National University, Svobody sq., 4, 61077, Kharkiv, Ukraine.,Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), KU Leuven, Celestijnenlaan 200F, B-3001, Leuven, Belgium
| | - Oleksandr V Kolomiets
- Division of Chemistry of Functional Materials, State Scientific Institution "Institute for Single Crystals" of National Academy of Sciences of Ukraine, Nauky Ave., 60, 61072, Kharkiv, Ukraine.,Faculty of Chemistry, V. N. Karazin Kharkiv National University, Svobody sq., 4, 61077, Kharkiv, Ukraine
| | - Maryna M Kornet
- Laboratory of Biotechnology of Physiologically Active Substances, Zaporizhzhia National University, Zhukovsky str., 66, Zaporizhzhya, Ukraine, 69600
| | - Yana I Sakhno
- Division of Chemistry of Functional Materials, State Scientific Institution "Institute for Single Crystals" of National Academy of Sciences of Ukraine, Nauky Ave., 60, 61072, Kharkiv, Ukraine
| | - Sergey M Desenko
- Division of Chemistry of Functional Materials, State Scientific Institution "Institute for Single Crystals" of National Academy of Sciences of Ukraine, Nauky Ave., 60, 61072, Kharkiv, Ukraine.,Faculty of Chemistry, V. N. Karazin Kharkiv National University, Svobody sq., 4, 61077, Kharkiv, Ukraine
| | - Victoriya V Dyakonenko
- Division of Chemistry of Functional Materials, State Scientific Institution "Institute for Single Crystals" of National Academy of Sciences of Ukraine, Nauky Ave., 60, 61072, Kharkiv, Ukraine
| | - Svetlana V Shishkina
- Division of Chemistry of Functional Materials, State Scientific Institution "Institute for Single Crystals" of National Academy of Sciences of Ukraine, Nauky Ave., 60, 61072, Kharkiv, Ukraine.,Faculty of Chemistry, V. N. Karazin Kharkiv National University, Svobody sq., 4, 61077, Kharkiv, Ukraine
| | - Oleksandr A Brazhko
- Laboratory of Biotechnology of Physiologically Active Substances, Zaporizhzhia National University, Zhukovsky str., 66, Zaporizhzhya, Ukraine, 69600
| | - Vladimir I Musatov
- Division of Chemistry of Functional Materials, State Scientific Institution "Institute for Single Crystals" of National Academy of Sciences of Ukraine, Nauky Ave., 60, 61072, Kharkiv, Ukraine
| | - Alexander V Tsygankov
- National Technical University "Kharkiv Polytechnic Institute", Kyrpychova str., 2, 61002, Kharkiv, Ukraine
| | - Erik V Van der Eycken
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), KU Leuven, Celestijnenlaan 200F, B-3001, Leuven, Belgium.,Peoples' Friendship University of Russia, Miklukho-Maklya str., 6, 117198, Moscow, Russia
| | - Valentyn A Chebanov
- Division of Chemistry of Functional Materials, State Scientific Institution "Institute for Single Crystals" of National Academy of Sciences of Ukraine, Nauky Ave., 60, 61072, Kharkiv, Ukraine.,Faculty of Chemistry, V. N. Karazin Kharkiv National University, Svobody sq., 4, 61077, Kharkiv, Ukraine.,Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), KU Leuven, Celestijnenlaan 200F, B-3001, Leuven, Belgium
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8
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Nechaev AA, Van Hecke K, Zaman M, Kashtanov S, Ungur L, Pereshivko OP, Peshkov VA, Van der Eycken EV. Gold-Catalyzed Post-Ugi Ipso-Cyclization with Switchable Diastereoselectivity. J Org Chem 2018; 83:8170-8182. [DOI: 10.1021/acs.joc.8b00953] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Anton A. Nechaev
- Laboratory of Organic & Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, University of Leuven (KU Leuven), Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Kristof Van Hecke
- XStruct, Department of Chemistry, Ghent University, Krijgslaan 281-S3, B-9000 Ghent, Belgium
| | - Manzoor Zaman
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Dushu Lake Campus, Suzhou 215123, China
| | - Stepan Kashtanov
- Institute of Functional Nano & Soft Materials (FUNSOM) and Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China
| | - Liviu Ungur
- Theory of Nanomaterials Group, Department of Chemistry, University of Leuven (KU Leuven), Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Olga P. Pereshivko
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Dushu Lake Campus, Suzhou 215123, China
| | - Vsevolod A. Peshkov
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Dushu Lake Campus, Suzhou 215123, China
| | - Erik V. Van der Eycken
- Laboratory of Organic & Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, University of Leuven (KU Leuven), Celestijnenlaan 200F, B-3001 Leuven, Belgium
- Peoples’ Friendship University of Russia (RUDN University), Miklukho-Maklaya Street 6, Moscow 117198, Russia
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9
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Ben Haj Salah K, Legrand B, Bibian M, Wenger E, Fehrentz JA, Denoyelle S. Synthesis of [1,2,4]Triazolo[4,3- a]piperazin-6-ones: An Approach to the Triazole-Fused Ketopiperazine Scaffold. Org Lett 2018; 20:3250-3254. [PMID: 29763330 DOI: 10.1021/acs.orglett.8b01112] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A stereoconservative synthesis to access the triazole-fused ketopiperazine (TKP) scaffold is presented. This underexplored platform offers a wide range of structural modulations with several points of diversity and chiral centers. A series of [1,2,4]triazolo[4,3- a]piperazin-6-ones was synthesized from optically pure dipeptides. The methodology was then successfully applied to access the pyrrolo[1,2- a]triazolo[3,4- c]piperazin-6-one tricycle. Importantly, the crystal structures of representative TKPs confirmed that the configuration of the chiral centers was controlled during the synthetic route and facilitated description of the orientation of the substituents depending on their nature and position on the TKP scaffold.
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Affiliation(s)
- Khoubaib Ben Haj Salah
- IBMM, Université de Montpellier , CNRS, ENSCM, Faculté de Pharmacie , 34093 Montpellier Cedex 5 , France
| | - Baptiste Legrand
- IBMM, Université de Montpellier , CNRS, ENSCM, Faculté de Pharmacie , 34093 Montpellier Cedex 5 , France
| | - Mathieu Bibian
- IBMM, Université de Montpellier , CNRS, ENSCM, Faculté de Pharmacie , 34093 Montpellier Cedex 5 , France
| | - Emmanuel Wenger
- CRM2 (UMR UL-CNRS 7036), Faculté des Sciences et Technologies , Université de Lorraine , 54506 Vandoeuvre-lès-Nancy , France
| | - Jean-Alain Fehrentz
- IBMM, Université de Montpellier , CNRS, ENSCM, Faculté de Pharmacie , 34093 Montpellier Cedex 5 , France
| | - Séverine Denoyelle
- IBMM, Université de Montpellier , CNRS, ENSCM, Faculté de Pharmacie , 34093 Montpellier Cedex 5 , France
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10
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Van der Poorten O, Van Den Hauwe R, Hollanders K, Maes BUW, Tourwé D, Jida M, Ballet S. Rapid construction of substituted 3-amino-1,5-benzothiazepin-4(5H)-one dipeptide scaffolds through an Ugi-4CR - Ullmann cross-coupling sequence. Org Biomol Chem 2018; 16:1242-1246. [PMID: 29379930 DOI: 10.1039/c7ob03094k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A 3-step methodology for the synthesis of 1,5-benzothiazepin-4(5H)-one dipeptidomimetics has been elaborated via an Ugi-4CR followed by a S-trityl deprotection and an intramolecular Cu(i)-catalyzed Ullmann condensation with moderate to good yields. In silico and NMR conformational studies showed that the lowest energy conformers stabilize γ- and β-turn structures.
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Affiliation(s)
- O Van der Poorten
- Research Group of Organic Chemistry, Departments of Chemistry and Bioengineering Sciences, Vrije Universiteit Brussel, Pleinlaan 2, B-1000 Brussels, Belgium.
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11
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Caputo S, Banfi L, Basso A, Galatini A, Moni L, Riva R, Lambruschini C. Diversity-Oriented Synthesis of Various Enantiopure Heterocycles by Coupling Organocatalysis with Multicomponent Reactions. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701328] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Samantha Caputo
- Department of Chemistry and Industrial Chemistry; University of Genova; via Dodecaneso 31 16146 Genova Italy
| | - Luca Banfi
- Department of Chemistry and Industrial Chemistry; University of Genova; via Dodecaneso 31 16146 Genova Italy
| | - Andrea Basso
- Department of Chemistry and Industrial Chemistry; University of Genova; via Dodecaneso 31 16146 Genova Italy
| | - Andrea Galatini
- Department of Chemistry and Industrial Chemistry; University of Genova; via Dodecaneso 31 16146 Genova Italy
| | - Lisa Moni
- Department of Chemistry and Industrial Chemistry; University of Genova; via Dodecaneso 31 16146 Genova Italy
| | - Renata Riva
- Department of Chemistry and Industrial Chemistry; University of Genova; via Dodecaneso 31 16146 Genova Italy
| | - Chiara Lambruschini
- Department of Chemistry and Industrial Chemistry; University of Genova; via Dodecaneso 31 16146 Genova Italy
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12
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Lambruschini C, Galante D, Moni L, Ferraro F, Gancia G, Riva R, Traverso A, Banfi L, D'Arrigo C. Multicomponent, fragment-based synthesis of polyphenol-containing peptidomimetics and their inhibiting activity on beta-amyloid oligomerization. Org Biomol Chem 2017; 15:9331-9351. [DOI: 10.1039/c7ob02182h] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A new and short fragment-based approach towards artificial (but “natural-based”) complex polyphenols has been developed, exploiting the Ugi multicomponent reaction of phenol-containing simple substrates.
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Affiliation(s)
- Chiara Lambruschini
- Department of Chemistry and Industrial Chemistry
- University of Genova
- 16146 Genova
- Italy
| | - Denise Galante
- Istituto per lo Studio delle Macromolecole
- Consiglio Nazionale delle Ricerche
- 16149 Genova
- Italy
| | - Lisa Moni
- Department of Chemistry and Industrial Chemistry
- University of Genova
- 16146 Genova
- Italy
| | - Francesco Ferraro
- Department of Chemistry and Industrial Chemistry
- University of Genova
- 16146 Genova
- Italy
| | - Giulio Gancia
- Istituto per lo Studio delle Macromolecole
- Consiglio Nazionale delle Ricerche
- 16149 Genova
- Italy
| | - Renata Riva
- Department of Chemistry and Industrial Chemistry
- University of Genova
- 16146 Genova
- Italy
| | - Alessia Traverso
- Department of Chemistry and Industrial Chemistry
- University of Genova
- 16146 Genova
- Italy
| | - Luca Banfi
- Department of Chemistry and Industrial Chemistry
- University of Genova
- 16146 Genova
- Italy
| | - Cristina D'Arrigo
- Istituto per lo Studio delle Macromolecole
- Consiglio Nazionale delle Ricerche
- 16149 Genova
- Italy
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13
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Moni L, Banfi L, Basso A, Bozzano A, Spallarossa M, Wessjohann L, Riva R. Passerini Reactions on Biocatalytically Derived Chiral Azetidines. Molecules 2016; 21:molecules21091153. [PMID: 27589709 PMCID: PMC6273022 DOI: 10.3390/molecules21091153] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 08/24/2016] [Accepted: 08/26/2016] [Indexed: 11/22/2022] Open
Abstract
The purpose of this study was to explore a series of Passerini reactions on a biocatalytically derived enantiopure azetidine-2-carboxyaldehyde in order to obtain, in a diastereoselective manner, polyfunctionalised derivatives having the potential to be cyclized to chiral bridged bicyclic nitrogen heterocycles. While diastereoselectivity was poor under classical Passerini conditions, a significant increase of diastereoselectivity (up to 76:24) was gained by the use of zinc bromide as promoter. The methodology has a broad scope and yields are always good.
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Affiliation(s)
- Lisa Moni
- Department of Chemistry and Industrial Chemistry, University of Genova, via Dodecaneso, 31-16146 Genova, Italy.
| | - Luca Banfi
- Department of Chemistry and Industrial Chemistry, University of Genova, via Dodecaneso, 31-16146 Genova, Italy.
| | - Andrea Basso
- Department of Chemistry and Industrial Chemistry, University of Genova, via Dodecaneso, 31-16146 Genova, Italy.
| | - Andrea Bozzano
- Department of Chemistry and Industrial Chemistry, University of Genova, via Dodecaneso, 31-16146 Genova, Italy.
| | - Martina Spallarossa
- Department of Chemistry and Industrial Chemistry, University of Genova, via Dodecaneso, 31-16146 Genova, Italy.
| | - Ludger Wessjohann
- Leibniz-Institut für Pflanzenbiochemie, Weinberg 3, 06120 Halle (Saale), Germany.
| | - Renata Riva
- Department of Chemistry and Industrial Chemistry, University of Genova, via Dodecaneso, 31-16146 Genova, Italy.
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