1
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Salvatti BA, Chagas MA, Fernandes PO, Ladeira YFX, Bozzi AS, Valadares VS, Valente AP, de Miranda AS, Rocha WR, Maltarollo VG, Moraes AH. Understanding the Enzyme ( S)-Norcoclaurine Synthase Promiscuity to Aldehydes and Ketones. J Chem Inf Model 2024; 64:4462-4474. [PMID: 38776464 DOI: 10.1021/acs.jcim.3c01773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
The (S)-norcoclaurine synthase from Thalictrum flavum (TfNCS) stereoselectively catalyzes the Pictet-Spengler reaction between dopamine and 4-hydroxyphenylacetaldehyde to give (S)-norcoclaurine. TfNCS can catalyze the Pictet-Spengler reaction with various aldehydes and ketones, leading to diverse tetrahydroisoquinolines. This substrate promiscuity positions TfNCS as a highly promising enzyme for synthesizing fine chemicals. Understanding carbonyl-containing substrates' structural and electronic signatures that influence TfNCS activity can help expand its applications in the synthesis of different compounds and aid in protein optimization strategies. In this study, we investigated the influence of the molecular properties of aldehydes and ketones on their reactivity in the TfNCS-catalyzed Pictet-Spengler reaction. Initially, we compiled a library of reactive and unreactive compounds from previous publications. We also performed enzymatic assays using nuclear magnetic resonance to identify some reactive and unreactive carbonyl compounds, which were then included in the library. Subsequently, we employed QSAR and DFT calculations to establish correlations between substrate-candidate structures and reactivity. Our findings highlight correlations of structural and stereoelectronic features, including the electrophilicity of the carbonyl group, to the reactivity of aldehydes and ketones toward the TfNCS-catalyzed Pictet-Spengler reaction. Interestingly, experimental data of seven compounds out of fifty-three did not correlate with the electrophilicity of the carbonyl group. For these seven compounds, we identified unfavorable interactions between them and the TfNCS. Our results demonstrate the applications of in silico techniques in understanding enzyme promiscuity and specificity, with a particular emphasis on machine learning methodologies, DFT electronic structure calculations, and molecular dynamic (MD) simulations.
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Affiliation(s)
- Brunno A Salvatti
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, Brazil
| | - Marcelo A Chagas
- Departamento de Ciências Exatas, Universidade do Estado de Minas Gerais, João Monlevade, Minas Gerais 35930-314, Brazil
| | - Phillipe O Fernandes
- Departamento de Produtos Farmacêuticos, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, Brazil
| | - Yan F X Ladeira
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, Brazil
| | - Aline S Bozzi
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, Brazil
| | - Veronica S Valadares
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, Brazil
| | - Ana Paula Valente
- Centro Nacional de Ressonância Magnética Nuclear, Instituto de Bioquímica Médica Leopoldo de Meis, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21.941-902, Brazil
| | - Amanda S de Miranda
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, Brazil
| | - Willian R Rocha
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, Brazil
| | - Vinicius G Maltarollo
- Departamento de Produtos Farmacêuticos, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, Brazil
| | - Adolfo H Moraes
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, Brazil
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2
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Cigan E, Pletz J, Berger SA, Hierzberger B, Grilec-Zlamal M, Steiner A, Oroz-Guinea I, Kroutil W. Concise synthesis of ( R)-reticuline and (+)-salutaridine by combining early-stage organic synthesis and late-stage biocatalysis. Chem Sci 2023; 14:9863-9871. [PMID: 37736642 PMCID: PMC10510765 DOI: 10.1039/d3sc02304d] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 08/10/2023] [Indexed: 09/23/2023] Open
Abstract
Efficient access to the morphinan scaffold remains a major challenge in both synthetic chemistry and biotechnology. Here, a biomimetic chemo-enzymatic strategy to synthesize the natural promorphinan intermediate (+)-salutaridine is demonstrated. By combining early-stage organic synthesis with enzymatic asymmetric key step transformations, the prochiral natural intermediate 1,2-dehydroreticuline was prepared and subsequently stereoselectively reduced by the enzyme 1,2-dehydroreticuline reductase obtaining (R)-reticuline in high ee and yield (>99% ee, up to quant. conversion, 92% isol. yield). In the final step, membrane-bound salutaridine synthase was used to perform the selective ortho-para phenol coupling to give (+)-salutaridine. The synthetic route shows the potential of combining early-stage advanced organic chemistry to minimize protecting group techniques with late-stage multi-step biocatalysis to provide an unprecedented access to the medicinally important compound class of promorphinans.
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Affiliation(s)
- Emmanuel Cigan
- Institute of Chemistry, University of Graz, NAWI Graz, BioTechMed Graz Heinrichstrasse 28/II 8010 Graz Austria
| | - Jakob Pletz
- Institute of Chemistry, University of Graz, NAWI Graz, BioTechMed Graz Heinrichstrasse 28/II 8010 Graz Austria
| | - Sarah A Berger
- Institute of Chemistry, University of Graz, NAWI Graz, BioTechMed Graz Heinrichstrasse 28/II 8010 Graz Austria
| | - Bettina Hierzberger
- Institute of Chemistry, University of Graz, NAWI Graz, BioTechMed Graz Heinrichstrasse 28/II 8010 Graz Austria
| | - Michael Grilec-Zlamal
- Institute of Chemistry, University of Graz, NAWI Graz, BioTechMed Graz Heinrichstrasse 28/II 8010 Graz Austria
| | - Alexander Steiner
- Institute of Chemistry, University of Graz, NAWI Graz, BioTechMed Graz Heinrichstrasse 28/II 8010 Graz Austria
| | - Isabel Oroz-Guinea
- Institute of Chemistry, University of Graz, NAWI Graz, BioTechMed Graz Heinrichstrasse 28/II 8010 Graz Austria
| | - Wolfgang Kroutil
- Institute of Chemistry, University of Graz, NAWI Graz, BioTechMed Graz Heinrichstrasse 28/II 8010 Graz Austria
- Field of Excellence BioHealth, University of Graz 8010 Graz Austria
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3
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Biswas A. Organocatalyzed Asymmetric Pictet‐Spengler Reactions. ChemistrySelect 2023. [DOI: 10.1002/slct.202203368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Anup Biswas
- Departmentof Chemistry Hooghly Women's College Vivekanada Road, Pipulpati Hooghly 712102 India
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4
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Sharma H, Mondal J, Ghosh AK, Pal RR, Goswami RK. Total synthesis of the antibacterial polyketide natural product thailandamide lactone. Chem Sci 2022; 13:13403-13408. [PMID: 36507156 PMCID: PMC9682914 DOI: 10.1039/d2sc04727f] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 10/20/2022] [Indexed: 12/15/2022] Open
Abstract
Stereoselective total synthesis of the structurally intriguing polyketide natural product thailandamide lactone was accomplished, and done so using a convergent approach for the first time to the best of our knowledge. The key features of this synthesis included use of a Crimmins acetate aldol reaction, Evans methylation, Urpi acetal aldol reaction, Sharpless asymmetric epoxidation and subsequent γ-lactonization for the installation of six asymmetric centers and the use of the Negishi reaction, Julia-Kocienski olefination, cross metathesis, HWE olefination and intermolecular Heck coupling for construction of a variety of unsaturated linkages. Pd(i)-based Heck coupling was introduced, for the first time to the best of our knowledge, quite efficiently to couple the major eastern and sensitive western segments of the molecule. The antibacterial activity of thailandamide lactone was also evaluated.
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Affiliation(s)
- Himangshu Sharma
- School of Chemical Sciences, Indian Association for the Cultivation of Science Jadavpur Kolkata-700032 India
| | - Joyanta Mondal
- School of Chemical Sciences, Indian Association for the Cultivation of Science Jadavpur Kolkata-700032 India
| | - Ananyo K Ghosh
- School of Biological Sciences, Indian Association for the Cultivation of Science Jadavpur Kolkata-700032 India
| | - Ritesh Ranjan Pal
- School of Biological Sciences, Indian Association for the Cultivation of Science Jadavpur Kolkata-700032 India
| | - Rajib Kumar Goswami
- School of Chemical Sciences, Indian Association for the Cultivation of Science Jadavpur Kolkata-700032 India
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5
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Scharf MJ, List B. A Catalytic Asymmetric Pictet-Spengler Platform as a Biomimetic Diversification Strategy toward Naturally Occurring Alkaloids. J Am Chem Soc 2022; 144:15451-15456. [PMID: 35976162 PMCID: PMC9446894 DOI: 10.1021/jacs.2c06664] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
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Tetrahydroisoquinoline (THIQ) alkaloids constitute a
large and
diverse class of bioactive natural products, with the parent compounds
and related downstream biosynthetic secondary metabolites spanning
thousands of isolated structures. Chemoenzymatic synthetic approaches
toward the relevant THIQs rely on Pictet–Spenglerases such
as norcoclaurine synthase (NCS), the scope of which is strictly limited
to dopamine-related phenolic substrates. To overcome these limitations
in the context of chemical synthesis, we herein report asymmetric
Pictet–Spengler reactions of N-carbamoyl-β-arylethylamines
with diverse aldehydes toward enantioenriched THIQs. The obtained
products proved to be competent intermediates in the synthesis of
THIQ, aporphine, tetrahydroberberine, morphinan, and androcymbine
natural products. Novel catalyst design with regard to the stabilization
of cationic intermediates was crucial to accomplish high reactivity
while simultaneously achieving unprecedented stereoselectivity for
the reaction of biologically relevant substrates.
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Affiliation(s)
- Manuel J Scharf
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470Mülheim an der Ruhr, Germany
| | - Benjamin List
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470Mülheim an der Ruhr, Germany
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6
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Nie Z, Yang T, Su M, Luo WP, Liu Q, Guo CC. One‐Step Synthesis of Arylacetaldehydes from Aryl aldehydes or Diaryl ketones via One‐Carbon Extension by Using the System of DMSO/KOH/Zinc. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200437] [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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7
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Yasukawa T, Sakamoto K, Yamashita Y, Kobayashi S. Homologation of Aryl Aldehydes Using Nitromethane as a C1 Source Enabled by Nitrogen-Doped Carbon-Supported Palladium Catalysts. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tomohiro Yasukawa
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Karin Sakamoto
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yasuhiro Yamashita
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shu̅ Kobayashi
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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8
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Kim A, Moon J, Lee C, Song J, Kim J, Kwon Y. Organocatalytic Atroposelective Synthesis of Isoquinolines via Dynamic Kinetic Resolution. Org Lett 2022; 24:1077-1082. [PMID: 35076251 DOI: 10.1021/acs.orglett.1c04330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Herein, a highly enantioselective Pictet-Spengler reaction for the synthesis of axially chiral tetrahydroisoquinolines via dynamic kinetic resolution is described. Chiral phosphoric acids catalyze cyclization to yield single regioisomeric isoquinolines with excellent enantioselectivities around the C-C bond up to 99% ee. The current protocol is effective for a wide range of substrates, and the observed enantiodivergence depends on the substituents on the catalysts.
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Affiliation(s)
- Ahreum Kim
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Junsoo Moon
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Chanhee Lee
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Jayoung Song
- College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Jongchan Kim
- Department of Life Sciences, Sogang University, Seoul 04107, Republic of Korea
| | - Yongseok Kwon
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
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9
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Kerru N, Maddila S, Jonnalagadda SB. Organo-catalysis as emerging tools in organic synthesis: aldol and Michael reactions. PHYSICAL SCIENCES REVIEWS 2022. [DOI: 10.1515/psr-2021-0023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Organocatalysis has occupied sustainable position in organic synthesis as a powerful tool for the synthesis of enantiomeric-rich compounds with multiple stereogenic centers. Among the various organic molecules for organocatalysis, the formation of carbon–carbon is viewed as a challenging issue in organic synthesis. The asymmetric aldol and Michael addition reactions are the most significant methods for C–C bond forming reactions. These protocols deliver a valuable path to access chiral molecules, which are useful synthetic hybrids in biologically potent candidates and desirable versatile pharmaceutical intermediates. This work highlighted the impact of organocatalytic aldol and Michael addition reactions in abundant solvent media. It focused on the crucial methods to construct valuable molecules with high enantio- and diastereo-selectivity.
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Affiliation(s)
- Nagaraju Kerru
- Department of Chemistry , GITAM School of Science, GITAM University , Bengaluru , Karnataka - 561203 , India
| | - Suresh Maddila
- Department of Chemistry , GITAM Institute of Sciences, GITAM University , Visakhapatnam , Andhra Pradesh , India
- School of Chemistry & Physics, University of KwaZulu-Natal , Westville Campus , Chiltern Hills , Durban - 4000 , South Africa
| | - Sreekantha B. Jonnalagadda
- School of Chemistry & Physics, University of KwaZulu-Natal , Westville Campus , Chiltern Hills , Durban - 4000 , South Africa
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10
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Nguyen VK, Kou KGM. The biology and total syntheses of bisbenzylisoquinoline alkaloids. Org Biomol Chem 2021; 19:7535-7543. [PMID: 34524341 DOI: 10.1039/d1ob00812a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
This mini-review provides a concise overview of the biosynthetic pathway and pharmacology of bisbenzylisoquinoline alkaloid (bisBIA) natural products. Additional emphasis is given to the methodologies in the total syntheses of both simpler acyclic diaryl ether dimers and their macrocyclic counterparts bearing two diaryl ether linkages.
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Affiliation(s)
- Viviene K Nguyen
- Department of Chemistry, University of California, Riverside, California 92521, USA.
| | - Kevin G M Kou
- Department of Chemistry, University of California, Riverside, California 92521, USA.
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11
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Wang N, Wu Z, Wang J, Ullah N, Lu Y. Recent applications of asymmetric organocatalytic annulation reactions in natural product synthesis. Chem Soc Rev 2021; 50:9766-9793. [PMID: 34286704 DOI: 10.1039/d0cs01124j] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The past two decades have witnessed remarkable growth of asymmetric organocatalysis, which is now a firmly established synthetic tool, serving as a powerful platform for the production of chiral molecules. Ring structures are ubiquitous in organic compounds, and, in the context of natural product synthesis, strategic construction of ring motifs is often crucial, fundamentally impacting the eventual fate of the whole synthetic plan. In this review, we provide a comprehensive and updated summary of asymmetric organocatalytic annulation reactions; in particular, the application of these annulation strategies in natural product synthesis will be highlighted.
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Affiliation(s)
- Nengzhong Wang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore.
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12
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Subrizi F, Wang Y, Thair B, Méndez‐Sánchez D, Roddan R, Cárdenas‐Fernández M, Siegrist J, Richter M, Andexer JN, Ward JM, Hailes HC. Multienzyme One-Pot Cascades Incorporating Methyltransferases for the Strategic Diversification of Tetrahydroisoquinoline Alkaloids. Angew Chem Int Ed Engl 2021; 60:18673-18679. [PMID: 34101966 PMCID: PMC8457072 DOI: 10.1002/anie.202104476] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/19/2021] [Indexed: 12/25/2022]
Abstract
The tetrahydroisoquinoline (THIQ) ring system is present in a large variety of structurally diverse natural products exhibiting a wide range of biological activities. Routes to mimic the biosynthetic pathways to such alkaloids, by building cascade reactions in vitro, represents a successful strategy and can offer better stereoselectivities than traditional synthetic methods. S-Adenosylmethionine (SAM)-dependent methyltransferases are crucial in the biosynthesis and diversification of THIQs; however, their application is often limited in vitro by the high cost of SAM and low substrate scope. In this study, we describe the use of methyltransferases in vitro in multi-enzyme cascades, including for the generation of SAM in situ. Up to seven enzymes were used for the regioselective diversification of natural and non-natural THIQs on an enzymatic preparative scale. Regioselectivites of the methyltransferases were dependent on the group at C-1 and presence of fluorine in the THIQs. An interesting dual activity was also discovered for the catechol methyltransferases used, which were found to be able to regioselectively methylate two different catechols in a single molecule.
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Affiliation(s)
- Fabiana Subrizi
- Department of ChemistryUniversity College London20 Gordon StreetLondonWC1H 0AJUK
| | - Yu Wang
- Department of ChemistryUniversity College London20 Gordon StreetLondonWC1H 0AJUK
| | - Benjamin Thair
- Department of ChemistryUniversity College London20 Gordon StreetLondonWC1H 0AJUK
| | | | - Rebecca Roddan
- Department of ChemistryUniversity College London20 Gordon StreetLondonWC1H 0AJUK
| | - Max Cárdenas‐Fernández
- Department of Biochemical EngineeringUniversity College LondonBernard Katz BuildingLondonWC1E 6BTUK
| | - Jutta Siegrist
- Institute of Pharmaceutical SciencesUniversity of FreiburgAlbertstr. 2579104FreiburgGermany
| | - Michael Richter
- Fraunhofer Institute for Interfacial Engineering and Biotechnology (IGB)Branch BiocatSchulgasse 11a94315StraubingGermany
| | - Jennifer N. Andexer
- Institute of Pharmaceutical SciencesUniversity of FreiburgAlbertstr. 2579104FreiburgGermany
| | - John M. Ward
- Department of Biochemical EngineeringUniversity College LondonBernard Katz BuildingLondonWC1E 6BTUK
| | - Helen C. Hailes
- Department of ChemistryUniversity College London20 Gordon StreetLondonWC1H 0AJUK
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13
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Subrizi F, Wang Y, Thair B, Méndez‐Sánchez D, Roddan R, Cárdenas‐Fernández M, Siegrist J, Richter M, Andexer JN, Ward JM, Hailes HC. Multienzyme One-Pot Cascades Incorporating Methyltransferases for the Strategic Diversification of Tetrahydroisoquinoline Alkaloids. ANGEWANDTE CHEMIE (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 133:18821-18827. [PMID: 38505091 PMCID: PMC10947541 DOI: 10.1002/ange.202104476] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/19/2021] [Indexed: 12/28/2022]
Abstract
The tetrahydroisoquinoline (THIQ) ring system is present in a large variety of structurally diverse natural products exhibiting a wide range of biological activities. Routes to mimic the biosynthetic pathways to such alkaloids, by building cascade reactions in vitro, represents a successful strategy and can offer better stereoselectivities than traditional synthetic methods. S-Adenosylmethionine (SAM)-dependent methyltransferases are crucial in the biosynthesis and diversification of THIQs; however, their application is often limited in vitro by the high cost of SAM and low substrate scope. In this study, we describe the use of methyltransferases in vitro in multi-enzyme cascades, including for the generation of SAM in situ. Up to seven enzymes were used for the regioselective diversification of natural and non-natural THIQs on an enzymatic preparative scale. Regioselectivites of the methyltransferases were dependent on the group at C-1 and presence of fluorine in the THIQs. An interesting dual activity was also discovered for the catechol methyltransferases used, which were found to be able to regioselectively methylate two different catechols in a single molecule.
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Affiliation(s)
- Fabiana Subrizi
- Department of ChemistryUniversity College London20 Gordon StreetLondonWC1H 0AJUK
| | - Yu Wang
- Department of ChemistryUniversity College London20 Gordon StreetLondonWC1H 0AJUK
| | - Benjamin Thair
- Department of ChemistryUniversity College London20 Gordon StreetLondonWC1H 0AJUK
| | | | - Rebecca Roddan
- Department of ChemistryUniversity College London20 Gordon StreetLondonWC1H 0AJUK
| | - Max Cárdenas‐Fernández
- Department of Biochemical EngineeringUniversity College LondonBernard Katz BuildingLondonWC1E 6BTUK
| | - Jutta Siegrist
- Institute of Pharmaceutical SciencesUniversity of FreiburgAlbertstr. 2579104FreiburgGermany
| | - Michael Richter
- Fraunhofer Institute for Interfacial Engineering and Biotechnology (IGB)Branch BiocatSchulgasse 11a94315StraubingGermany
| | - Jennifer N. Andexer
- Institute of Pharmaceutical SciencesUniversity of FreiburgAlbertstr. 2579104FreiburgGermany
| | - John M. Ward
- Department of Biochemical EngineeringUniversity College LondonBernard Katz BuildingLondonWC1E 6BTUK
| | - Helen C. Hailes
- Department of ChemistryUniversity College London20 Gordon StreetLondonWC1H 0AJUK
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14
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Ma RJ, Sun JT, Liu CH, Chen L, Si CM, Wei BG. Synthesis of 1-benzylisoindoline and 1-benzyl-tetrahydroisoquinoline through nucleophilic addition of organozinc reagents to N, O-acetals. Org Biomol Chem 2020; 18:7139-7150. [PMID: 32966517 DOI: 10.1039/d0ob01477j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A new approach to access 1-benzylisoindoline and 1-benzyl-tetrahydroisoquinoline has been developed through nucleophilic addition of organozinc reagents to N,O-acetals. A number of substituted organozinc reagents were amenable for this transformation, and the desired products were obtained with excellent yields. Moreover, Sc(OTf)3 proved to be an effective catalyst for the formation of 1-benzylisoindoline and 1-benzyl-tetrahydroisoquinoline using such nucleophilic addition.
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Affiliation(s)
- Rui-Jun Ma
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China. and Center for Gastrointestinal Endoscopy, Shanxi Provincial People's Hospital, 29 ShuangTa Road, TaiYuan 030012, China
| | - Jian-Ting Sun
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China.
| | - Chang-Hong Liu
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China.
| | - Ling Chen
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China.
| | - Chang-Mei Si
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China.
| | - Bang-Guo Wei
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China.
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15
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Tsuruoka R, Yoshikawa N, Konishi T, Yamano M. Asymmetric Synthesis of a 5,6,7,8-Tetrahydro-1,6-naphthyridine Scaffold Leading to Potent Retinoid-Related Orphan Receptor γt Inverse Agonist TAK-828F. J Org Chem 2020; 85:10797-10805. [PMID: 32701287 PMCID: PMC7445745 DOI: 10.1021/acs.joc.0c01311] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
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An asymmetric synthesis
of the tetrahydronaphthyridine scaffold of TAK-828F as a RORγt
inverse agonist has been developed. The synthesis features a newly
discovered atom-economical protocol for Heck-type vinylation of chloropyridine
using ethylene gas, an unprecedented formation of dihydronaphthyridine
directly from 2-vinyl-3-acylpyridine mediated by ammonia, and a ruthenium-catalyzed
enantioselective transfer hydrogenation as key steps. This represents
the first example of the enantioselective synthesis of a 5,6,7,8-tetrahydro-1,6-naphthyridine
compound. The new synthesis is also free of chromatography or distillation
purification processes and therefore qualifies for extension to large-scale
manufacture.
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Affiliation(s)
- Ryoji Tsuruoka
- Process Chemistry, Pharmaceutical Sciences, Takeda Pharmaceutical Company Limited, 17-85 Jusohonmachi 2-Chome, Yodogawa-ku, Osaka 532-8686, Japan
| | - Naoki Yoshikawa
- Process Chemistry, Pharmaceutical Sciences, Takeda Pharmaceutical Company Limited, 17-85 Jusohonmachi 2-Chome, Yodogawa-ku, Osaka 532-8686, Japan
| | - Takahiro Konishi
- Process Chemistry, Pharmaceutical Sciences, Takeda Pharmaceutical Company Limited, 17-85 Jusohonmachi 2-Chome, Yodogawa-ku, Osaka 532-8686, Japan
| | - Mitsuhisa Yamano
- Process Chemistry, Pharmaceutical Sciences, Takeda Pharmaceutical Company Limited, 17-85 Jusohonmachi 2-Chome, Yodogawa-ku, Osaka 532-8686, Japan
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16
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Mahmoud AB, Danton O, Kaiser M, Khalid S, Hamburger M, Mäser P. HPLC-Based Activity Profiling for Antiprotozoal Compounds in Croton gratissimus and Cuscuta hyalina. Front Pharmacol 2020; 11:1246. [PMID: 32922290 PMCID: PMC7456963 DOI: 10.3389/fphar.2020.01246] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 07/29/2020] [Indexed: 12/13/2022] Open
Abstract
In a screening of Sudanese medicinal plants for antiprotozoal activity, the chloroform fractions obtained by liquid-liquid partitioning from ethanolic extracts of fruits of Croton gratissimus var. gratissimus and stems of Cuscuta hyalina Roth ex Schult. exhibited in vitro activity against axenically grown Leishmania donovani amastigotes. This antileishmanial activity was localized by HPLC-based activity profiling. Targeted preparative isolation afforded flavonoids 1–6, 3-methoxy-4-hydroxybenzoic acid (7), and benzyltetrahydroisoquinoline alkaloids laudanine (8) and laudanosine (9) from C. gratissimus, and pinoresinol (10), isorhamnetin (11), (-)-pseudosemiglabrin (12), and kaempferol (13) from C. hyalina. The antiprotozoal activity of 1–13 against L. donovani (axenic and intracellular amastigotes), Trypanosoma brucei rhodesiense (bloodstream forms), and Plasmodium falciparum (erythrocytic stages), and the cytotoxicity in L6 murine myoblast cells were determined in vitro. Quercetin-3,7-dimethylether (6) showed the highest activity against axenic L. donovani (IC50, 4.5 µM; selectivity index [SI], 12.3), P. falciparum (IC50, 7.3 µM; SI, 7.6), and T. b. rhodesiense (IC50, 2.4 µM; SI, 23.2). The congener ayanin (2) exhibited moderate antileishmanial (IC50, 8.2 µM; SI, 12.2), antiplasmodial (IC50, 7.8 µM; SI, 12.9), and antitrypanosomal activity (IC50, 11.2 µM; SI, 8.9). None of the compounds showed notable activity against the intramacrophage form of L. donovani.
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Affiliation(s)
- Abdelhalim Babiker Mahmoud
- Parasite Chemotherapy Unit, Swiss Tropical and Public Health Institute, Basel, Switzerland.,Faculty of Science, University of Basel, Basel, Switzerland.,Faculty of Pharmacy, University of Khartoum, Khartoum, Sudan
| | | | - Marcel Kaiser
- Parasite Chemotherapy Unit, Swiss Tropical and Public Health Institute, Basel, Switzerland.,Faculty of Science, University of Basel, Basel, Switzerland
| | - Sami Khalid
- Faculty of Pharmacy, University of Khartoum, Khartoum, Sudan.,Faculty of Pharmacy, University of Science and Technology, Omdurman, Sudan
| | | | - Pascal Mäser
- Parasite Chemotherapy Unit, Swiss Tropical and Public Health Institute, Basel, Switzerland.,Faculty of Science, University of Basel, Basel, Switzerland
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17
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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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18
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Wanner MJ, Zuidinga E, Tromp DS, Vilím J, Jørgensen SI, van Maarseveen JH. Synthetic Evidence of the Amadori-Type Alkylation of Biogenic Amines by the Neurotoxic Metabolite Dopegal. J Org Chem 2019; 85:1202-1207. [PMID: 31841007 PMCID: PMC6970265 DOI: 10.1021/acs.joc.9b01948] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
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The neurotransmitter metabolite 3,4-dihydroxy-phenylglycolaldehyde
(dopegal) damages neurons and the myocardium by protein cross-linking,
resulting in conglomerations and cell death. We investigated this
process on a synthetic scale, leading to the discovery of an Amadori-type
rearrangement of dopegal in the reaction with several amino acids
and neuropeptides. This alkylation also occurs with neurotransmitters,
suggesting an influence of dopegal on neurochemical processes. The
rearrangement occurs readily under physiological conditions.
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Affiliation(s)
- Martin J Wanner
- Van't Hoff Institute for Molecular Sciences , University of Amsterdam , Science Park 904 , 1098 XH Amsterdam , The Netherlands
| | - Ed Zuidinga
- Van't Hoff Institute for Molecular Sciences , University of Amsterdam , Science Park 904 , 1098 XH Amsterdam , The Netherlands
| | - Dorette S Tromp
- Van't Hoff Institute for Molecular Sciences , University of Amsterdam , Science Park 904 , 1098 XH Amsterdam , The Netherlands
| | - Jan Vilím
- Van't Hoff Institute for Molecular Sciences , University of Amsterdam , Science Park 904 , 1098 XH Amsterdam , The Netherlands
| | - Steen Ingemann Jørgensen
- Van't Hoff Institute for Molecular Sciences , University of Amsterdam , Science Park 904 , 1098 XH Amsterdam , The Netherlands
| | - Jan H van Maarseveen
- Van't Hoff Institute for Molecular Sciences , University of Amsterdam , Science Park 904 , 1098 XH Amsterdam , The Netherlands
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19
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Sirvent A, García-Muñoz MJ, Yus M, Foubelo F. Stereoselective Synthesis of Tetrahydroisoquinolines from Chiral 4-Azaocta-1,7-diynes and 4-Azaocta-1,7-enynes. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901590] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ana Sirvent
- Departamento de Química Orgánica; Facultad de Ciencias; Universidad de Alicante; Apdo. 99 03080 Alicante Spain
- Instituto de Síntesis Orgánica; Universidad de Alicante; Apdo. 99 03080 Alicante Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Universidad de Alicante; Apdo. 99 03080 Alicante Spain
| | - M. Jesús García-Muñoz
- Departamento de Química Orgánica; Facultad de Ciencias; Universidad de Alicante; Apdo. 99 03080 Alicante Spain
- Instituto de Síntesis Orgánica; Universidad de Alicante; Apdo. 99 03080 Alicante Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Universidad de Alicante; Apdo. 99 03080 Alicante Spain
| | - Miguel Yus
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Universidad de Alicante; Apdo. 99 03080 Alicante Spain
| | - Francisco Foubelo
- Departamento de Química Orgánica; Facultad de Ciencias; Universidad de Alicante; Apdo. 99 03080 Alicante Spain
- Instituto de Síntesis Orgánica; Universidad de Alicante; Apdo. 99 03080 Alicante Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Universidad de Alicante; Apdo. 99 03080 Alicante Spain
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20
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Ding CF, Qin XJ, Yu HF, Liu YP, Wang XH, Luo XD. Thalicfoetine, a novel isoquinoline alkaloid with antibacterial activity from Thalictrum foetidum. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.151135] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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21
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Wang Y, Tappertzhofen N, Méndez‐Sánchez D, Bawn M, Lyu B, Ward JM, Hailes HC. Design and Use of de novo Cascades for the Biosynthesis of New Benzylisoquinoline Alkaloids. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201902761] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Yu Wang
- Department of ChemistryUniversity College London 20 Gordon Street London WC1H 0AJ UK
| | - Nadine Tappertzhofen
- Department of ChemistryUniversity College London 20 Gordon Street London WC1H 0AJ UK
| | - Daniel Méndez‐Sánchez
- Department of ChemistryUniversity College London 20 Gordon Street London WC1H 0AJ UK
| | - Maria Bawn
- Department of Biochemical EngineeringUniversity College London London WC1E 6BT UK
| | - Boyu Lyu
- Department of Biochemical EngineeringUniversity College London London WC1E 6BT UK
| | - John M. Ward
- Department of Biochemical EngineeringUniversity College London London WC1E 6BT UK
| | - Helen C. Hailes
- Department of ChemistryUniversity College London 20 Gordon Street London WC1H 0AJ UK
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22
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Wang Y, Tappertzhofen N, Méndez-Sánchez D, Bawn M, Lyu B, Ward JM, Hailes HC. Design and Use of de novo Cascades for the Biosynthesis of New Benzylisoquinoline Alkaloids. Angew Chem Int Ed Engl 2019; 58:10120-10125. [PMID: 31100182 DOI: 10.1002/anie.201902761] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 04/10/2019] [Indexed: 11/06/2022]
Abstract
The benzylisoquinoline alkaloids (BIAs) are an important group of secondary metabolites from higher plants and have been reported to show significant biological activities. The production of BIAs through synthetic biology approaches provides a higher-yielding strategy than traditional synthetic methods or isolation from plant material. However, the reconstruction of BIA pathways in microorganisms by combining heterologous enzymes can also give access to BIAs through cascade reactions. Most importantly, non-natural BIAs can be generated through such artificial pathways. In the current study, we describe the use of tyrosinases and decarboxylases and combine these with a transaminase enzyme and norcoclaurine synthase for the efficient synthesis of several BIAs, including six non-natural alkaloids, in cascades from l-tyrosine and analogues.
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Affiliation(s)
- Yu Wang
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK
| | - Nadine Tappertzhofen
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK
| | - Daniel Méndez-Sánchez
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK
| | - Maria Bawn
- Department of Biochemical Engineering, University College London, London, WC1E 6BT, UK
| | - Boyu Lyu
- Department of Biochemical Engineering, University College London, London, WC1E 6BT, UK
| | - John M Ward
- Department of Biochemical Engineering, University College London, London, WC1E 6BT, UK
| | - Helen C Hailes
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK
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23
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Albano G, Morelli M, Lissia M, Aronica LA. Synthesis of Functionalised Indoline and Isoquinoline Derivatives through a Silylcarbocyclisation/Desilylation Sequence. ChemistrySelect 2019. [DOI: 10.1002/slct.201900524] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Gianluigi Albano
- Dipartimento di Chimica e Chimica Industriale; University of Pisa, Via G. Moruzzi 13; 56124 Pisa Italy Fax: (+)390502219260
| | - Martina Morelli
- Dipartimento di Chimica e Chimica Industriale; University of Pisa, Via G. Moruzzi 13; 56124 Pisa Italy Fax: (+)390502219260
| | - Margherita Lissia
- Dipartimento di Chimica e Chimica Industriale; University of Pisa, Via G. Moruzzi 13; 56124 Pisa Italy Fax: (+)390502219260
| | - Laura A. Aronica
- Dipartimento di Chimica e Chimica Industriale; University of Pisa, Via G. Moruzzi 13; 56124 Pisa Italy Fax: (+)390502219260
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24
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Tazawa A, Ishizawa K, Ando J, Watanabe M, Azumaya I, Hikawa H, Tanaka M. An exceptionally mild synthetic strategy using cascade reaction for 3,4‐dihydronaphthyridinones having aliphatic substituent on amide nitrogen. ChemistrySelect 2019. [DOI: 10.1002/slct.201802104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Aoi Tazawa
- Sohyaku Innovative Research DivisionMitsubishi Tanabe Pharma Corporation, 1000 Kamoshida-cho, Aoba-ku Yokohama 227–0033 Japan
- Faculty of Pharmaceutical SciencesToho University, 2–2-1 Miyama, Funabashi Chiba 274–8510 Japan
| | - Kohei Ishizawa
- Sohyaku Innovative Research DivisionMitsubishi Tanabe Pharma Corporation, 1000 Kamoshida-cho, Aoba-ku Yokohama 227–0033 Japan
| | - Junki Ando
- Sohyaku Innovative Research DivisionMitsubishi Tanabe Pharma Corporation, 1000 Kamoshida-cho, Aoba-ku Yokohama 227–0033 Japan
| | - Masayuki Watanabe
- Sohyaku Innovative Research DivisionMitsubishi Tanabe Pharma Corporation, 1000 Kamoshida-cho, Aoba-ku Yokohama 227–0033 Japan
| | - Isao Azumaya
- Faculty of Pharmaceutical SciencesToho University, 2–2-1 Miyama, Funabashi Chiba 274–8510 Japan
| | - Hidemasa Hikawa
- Faculty of Pharmaceutical SciencesToho University, 2–2-1 Miyama, Funabashi Chiba 274–8510 Japan
| | - Minoru Tanaka
- Sohyaku Innovative Research DivisionMitsubishi Tanabe Pharma Corporation, 1000 Kamoshida-cho, Aoba-ku Yokohama 227–0033 Japan
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25
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Horst B, Wanner MJ, Jørgensen SI, Hiemstra H, van Maarseveen JH. Total Synthesis of the Ortho-Hydroxylated Protoberberines ( S)-Govaniadine, ( S)-Caseamine, and ( S)-Clarkeanidine via a Solvent-Directed Pictet-Spengler Reaction. J Org Chem 2018; 83:15110-15117. [PMID: 30451502 PMCID: PMC6328280 DOI: 10.1021/acs.joc.8b02378] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The common para regioselectivity in Pictet-Spengler reactions with dopamine derivatives is redirected to the ortho position by a simple change of solvents. In combination with a chiral auxiliary on nitrogen, this ortho-selective Pictet-Spengler produced the 1-benzyltetrahydroisoquinoline alkaloids ( S)-crassifoline and ( S)-norcrassifoline and the bioactive 1,2-dioxygenated tetrahydroprotoberberine alkaloids ( S)-govaniadine, ( S)-caseamine, and ( S)-clarkeanidine with high enantiopurity. Ortho/para ratios up to 89:19 and diastereomeric ratios up to 85:15 were obtained during formation of the B-ring. The general applicability of this solvent-directed regioselectivity was demonstrated with a second Pictet-Spengler reaction as required for C-ring formation of caseamine (o/p = 14:86 in trifluoroethanol) and clarkeanidine (o/p = 86:14 in toluene).
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Affiliation(s)
- Brendan Horst
- Van't Hoff Institute for Molecular Sciences , University of Amsterdam , Science Park 904 , 1098 XH Amsterdam , The Netherlands
| | - Martin J Wanner
- Van't Hoff Institute for Molecular Sciences , University of Amsterdam , Science Park 904 , 1098 XH Amsterdam , The Netherlands
| | - Steen Ingemann Jørgensen
- Van't Hoff Institute for Molecular Sciences , University of Amsterdam , Science Park 904 , 1098 XH Amsterdam , The Netherlands
| | - Henk Hiemstra
- Van't Hoff Institute for Molecular Sciences , University of Amsterdam , Science Park 904 , 1098 XH Amsterdam , The Netherlands
| | - Jan H van Maarseveen
- Van't Hoff Institute for Molecular Sciences , University of Amsterdam , Science Park 904 , 1098 XH Amsterdam , The Netherlands
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26
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Ura Y. Toward the Development of Palladium-catalyzed Terminal-selective Oxidations of Hydrocarbons Using Molecular Oxygen. J SYN ORG CHEM JPN 2018. [DOI: 10.5059/yukigoseikyokaishi.76.1291] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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27
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Patil MD, Grogan G, Yun H. Biocatalyzed C−C Bond Formation for the Production of Alkaloids. ChemCatChem 2018. [DOI: 10.1002/cctc.201801130] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Mahesh D. Patil
- Department of Systems BiotechnologyKonkuk University Seoul 143-701 Korea
| | - Gideon Grogan
- Department of ChemistryUniversity of York Heslington York, YO10 5DD UK
| | - Hyungdon Yun
- Department of Systems BiotechnologyKonkuk University Seoul 143-701 Korea
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28
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Schlegel M, Coburger P, Schneider C. A Novel Sc(OTf) 3 -Catalyzed (2+2+1)-Cycloannulation/Aza-Friedel-Crafts Alkylation Sequence toward Multicyclic 2-Pyrrolines. Chemistry 2018; 24:14207-14212. [PMID: 29939442 DOI: 10.1002/chem.201802478] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Indexed: 12/13/2022]
Abstract
The rapid assembly of molecular complexity continues to be at the forefront of novel reaction development. In the pursuit of that goal, we herein report a novel Sc(OTf)3 -catalyzed, one-pot multicomponent reaction that furnishes complex multicyclic 2-pyrrolines with excellent overall yields and perfect diastereocontrol. This process is based on our previously established (2+2+1)-cycloannulation of in situ generated 1-azaallyl cations, 1,3-dicarbonyls and primary amines. The newly formed and highly reactive aminal moiety is readily substituted with indoles and pyrroles both as external and internal π-nucleophiles to provide densely functionalized N-heterocycles with four new σ-bonds and two vicinal quaternary stereogenic centers. In addition, DFT calculations have been conducted to further characterize the intermediate 1-azaallyl cations.
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Affiliation(s)
- Marcel Schlegel
- Institut für Organische Chemie, Universität Leipzig, Johannisallee 29, 04103, Leipzig, Germany
| | - Peter Coburger
- Institut für Anorganische Chemie, Universität Leipzig, Johannisallee 29, 04103, Leipzig, Germany
| | - Christoph Schneider
- Institut für Organische Chemie, Universität Leipzig, Johannisallee 29, 04103, Leipzig, Germany
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29
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M Heravi M, Zadsirjan V, Malmir M. Application of the Asymmetric Pictet-Spengler Reaction in the Total Synthesis of Natural Products and Relevant Biologically Active Compounds. Molecules 2018; 23:E943. [PMID: 29670061 PMCID: PMC6017108 DOI: 10.3390/molecules23040943] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 04/07/2018] [Accepted: 04/12/2018] [Indexed: 12/18/2022] Open
Abstract
Tetrahydroisoquinolines are the framework of numerous natural products predominantly alkaloids, an important and one of the most wide spread families of naturally occurring compounds in the plant kingdom. Tetrahydroisoquinolines are commonly constructed through an old reaction, the so-called Pictet−Spengler Reaction (PSR). In this reaction, a β-aryl ethylamine undergoes an acid mediated condensation with a suitable aldehyde or ketone, followed by ring closure. In this review, we aim to highlight the applications of the asymmetric variant of this old name reaction in the total synthesis of natural products, chiefly, alkaloids, which exhibit significant biological properties.
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Affiliation(s)
- Majid M Heravi
- Department of Chemistry, Alzahra University, Vanak, Tehran 1993893973, Iran.
| | - Vahideh Zadsirjan
- Department of Chemistry, Alzahra University, Vanak, Tehran 1993893973, Iran.
| | - Masumeh Malmir
- Department of Chemistry, Alzahra University, Vanak, Tehran 1993893973, Iran.
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30
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Green Routes for the Production of Enantiopure Benzylisoquinoline Alkaloids. Int J Mol Sci 2017; 18:ijms18112464. [PMID: 29156609 PMCID: PMC5713430 DOI: 10.3390/ijms18112464] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 11/14/2017] [Accepted: 11/16/2017] [Indexed: 12/20/2022] Open
Abstract
Benzylisoquinoline alkaloids (BIAs) are among the most important plant secondary metabolites, in that they include a number of biologically active substances widely employed as pharmaceuticals. Isolation of BIAs from their natural sources is an expensive and time-consuming procedure as they accumulate in very low levels in plant. Moreover, total synthesis is challenging due to the presence of stereogenic centers. In view of these considerations, green and scalable methods for BIA synthesis using fully enzymatic approaches are getting more and more attention. The aim of this paper is to review fully enzymatic strategies for producing the benzylisoquinoline central precursor, (S)-norcoclaurine and its derivatives. Specifically, we will detail the current status of synthesis of BIAs in microbial hosts as well as using isolated and recombinant enzymes.
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31
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Reddy YV, Biradar DO, Reddy BJM, Rathod A, Himabindu M, Reddya BVS. Asymmetric Synthesis of Tetrahydroisoquinoline Alkaloids Using Ellman's Chiral Auxiliary. Nat Prod Commun 2017. [DOI: 10.1177/1934578x1701201019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Chiral t-butylsulfinamide has been successfully employed for the stereoselective synthesis of 1-benzyl tetrahydroisoquinoline alkaloids. This is the first report on the synthesis of chiral 1-benzyltetrahydroisoquinoline natural products using tert-butylsulfinamide through a haloamide cyclization.
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Affiliation(s)
- Y. Vikram Reddy
- Crop Protection Chemicals, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500 007, India
| | - Dhanraj O. Biradar
- Crop Protection Chemicals, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500 007, India
| | | | - Aravinda Rathod
- Crop Protection Chemicals, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500 007, India
| | - M. Himabindu
- Crop Protection Chemicals, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500 007, India
| | - B. V. Subba Reddya
- Crop Protection Chemicals, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500 007, India
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Klausen RS, Kennedy CR, Hyde AM, Jacobsen EN. Chiral Thioureas Promote Enantioselective Pictet-Spengler Cyclization by Stabilizing Every Intermediate and Transition State in the Carboxylic Acid-Catalyzed Reaction. J Am Chem Soc 2017; 139:12299-12309. [PMID: 28787140 PMCID: PMC5674793 DOI: 10.1021/jacs.7b06811] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
An investigation of the mechanism of benzoic acid/thiourea co-catalysis in the asymmetric Pictet-Spengler reaction is reported. Kinetic, computational, and structure-activity relationship studies provide evidence that rearomatization via deprotonation of the pentahydro-β-carbolinium ion intermediate by a chiral thiourea·carboxylate complex is both rate- and enantioselectivity-determining. The thiourea catalyst induces rate acceleration over the background reaction mediated by benzoic acid alone by stabilizing every intermediate and transition state leading up to and including the final selectivity-determining step. Distortion-interaction analyses of the transition structures for deprotonation predicted using density functional theory indicate that differential π-π and C-H···π interactions within a scaffold organized by multiple hydrogen bonds dictate stereoselectivity. The principles underlying rate acceleration and enantiocontrol described herein are expected to have general implications for the design of selective transformations involving deprotonation of high-energy intermediates.
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Affiliation(s)
| | - C. Rose Kennedy
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
| | | | - Eric N. Jacobsen
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
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Aranzamendi E, Sotomayor N, Lete E. Phenolic Activation in Chiral Brønsted Acid-Catalyzed Intramolecular α-Amidoalkylation Reactions for the Synthesis of Fused Isoquinolines. ACS OMEGA 2017; 2:2706-2718. [PMID: 31457610 PMCID: PMC6641169 DOI: 10.1021/acsomega.7b00170] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Accepted: 06/05/2017] [Indexed: 05/07/2023]
Abstract
An organolithium addition-intramolecular α-amidoalkylation sequence on N-phenethylimides has been developed for the synthesis of fused tetrahydroisoquinoline systems using 1,1'-bi-2-naphthol (binol)-derived Brønsted acids. This transformation is the first in which activated benzene derivatives are used as internal nucleophiles, instead of electron-rich heteroaromatics, generating a quaternary stereocenter. Phenolic substitution on the aromatic ring of the phenethylamino moiety and the use of binol-derived N-triflylphosphoramides as catalysts are determinants to achieve reasonable levels of enantioselection, that is, up to 75% enantiomeric excess, in the α-amidoalkylation step. The procedure is complementary to the intermolecular α-amidoalkylation process, as opposite enantiomers are formed, and to the Pictet-Spengler cyclization, which allows the formation of tertiary stereocenters.
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Suzuki Y, Saito Y, Goto M, Newman DJ, O’Keefe BR, Lee KH, Nakagawa-Goto K. (-)-Neocaryachine, an Antiproliferative Pavine Alkaloid from Cryptocarya laevigata, Induces DNA Double-Strand Breaks. JOURNAL OF NATURAL PRODUCTS 2017; 80:220-224. [PMID: 28099003 PMCID: PMC5516478 DOI: 10.1021/acs.jnatprod.6b01153] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Twelve benzylisoquinoline alkaloids, including pavine and phenanthroindolizidine types, were isolated from a MeOH/CH2Cl2 extract of Cryptocarya laevigata (stem bark) through bioactivity-guided fractionation for antitumor effects. Selected compounds were evaluated for antiproliferative activity against five human tumor cell lines, including a multidrug-resistant subline. Since more common 2,3,8,9-tetrasubstituted pavine alkaloids, such as crychine (3), exhibit very mild or no cytotoxicity, this compound type has not been well investigated for antitumor activity. Thus, this report is the first discovery of a 7-hydroxylated pavine alkaloid, (-)-neocaryachine (1), to demonstrate strong antiproliferative activity, with IC50 values of 0.06 to 0.41 μM against five tested tumor cell lines, including an MDR subline. Further mechanism of action studies revealed that 1 impacts the cellular S-phase by inducing DNA double-strand breaks.
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Affiliation(s)
- Yuki Suzuki
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Yohei Saito
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Masuo Goto
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-7568, United States
| | - David J. Newman
- NIH Special Volunteer, Wayne, Pennsylvania 19087, United States
| | - Barry R. O’Keefe
- Natural Products Branch, Developmental Therapeutics Program, Division of Cancer Treatment and Diagnosis, NCI at Frederick, Frederick, Maryland 21702-1201, United States
- Molecular Targets Laboratory, Center for Cancer Research, National Cancer Institute, NCI at Frederick, Frederick, Maryland 21702-1201, United States
| | - Kuo-Hsiung Lee
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-7568, United States
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-7295, United States
- Chinese Medicine Research and Development Center, China Medical University and Hospital, 2 Yuh-Der Road, Taichung, 40447, Taiwan
| | - Kyoko Nakagawa-Goto
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-7568, United States
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Ji Y, Feng GS, Chen MW, Shi L, Du H, Zhou YG. Iridium-catalyzed asymmetric hydrogenation of cyclic iminium salts. Org Chem Front 2017. [DOI: 10.1039/c7qo00060j] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An iridium-catalyzed asymmetric hydrogenation of cyclic iminium salts has been developed, affording products with up to 96% ee.
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Affiliation(s)
- Yue Ji
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
- University of Chinese Academy of Sciences
| | - Guang-Shou Feng
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Mu-Wang Chen
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Lei Shi
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
- Beijing National Laboratory of Molecular Sciences
| | - Haifeng Du
- Beijing National Laboratory of Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- P. R. China
| | - Yong-Gui Zhou
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
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Rycek L, Hayward JJ, Latif MA, Tanko J, Simionescu R, Hudlicky T. Chemoenzymatic Total Synthesis of Hydromorphone by an Oxidative Dearomatization/Intramolecular [4 + 2] Cycloaddition Sequence: A Second-Generation Approach. J Org Chem 2016; 81:10930-10941. [PMID: 27690149 DOI: 10.1021/acs.joc.6b01990] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A second-generation approach to the synthesis of hydromorphone by oxidative dearomatization/Diels-Alder cycloaddition was investigated. Detailed analysis of the stereochemical outcome of the [4 + 2] cycloaddition was performed first on a truncated model system as well as on the material leading to ent-hydromorphone. The stereochemical assignments were made by NMR and X-ray methods. The second-generation synthesis of hydromorphone was completed in both enantiomeric series. Improvements in the dearomatization conditions were attained using hypervalent iodine reagents instead of Pb(OAc)4. Electrochemical methods of oxidative dearomatization were also investigated. New conditions enabling the rearomatization of ring A from the methoxyketal were developed, and a formal synthesis of the natural enantiomer of hydromorphone was completed. Experimental and spectral data are provided for all new compounds.
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Affiliation(s)
- Lukas Rycek
- Department of Chemistry and Centre for Biotechnology, Brock University , 1812 Sir Isaac Brock Way, St. Catharines, Ontario L2S 3A1, Canada
| | - John J Hayward
- Department of Chemistry and Centre for Biotechnology, Brock University , 1812 Sir Isaac Brock Way, St. Catharines, Ontario L2S 3A1, Canada
| | - Marwa Abdel Latif
- Department of Chemistry, Virginia Tech , Blacksburg, Virginia 24061, United States
| | - James Tanko
- Department of Chemistry, Virginia Tech , Blacksburg, Virginia 24061, United States
| | - Razvan Simionescu
- Department of Chemistry and Centre for Biotechnology, Brock University , 1812 Sir Isaac Brock Way, St. Catharines, Ontario L2S 3A1, Canada
| | - Tomas Hudlicky
- Department of Chemistry and Centre for Biotechnology, Brock University , 1812 Sir Isaac Brock Way, St. Catharines, Ontario L2S 3A1, Canada
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Chrzanowska M, Grajewska A, Rozwadowska MD. Asymmetric Synthesis of Isoquinoline Alkaloids: 2004-2015. Chem Rev 2016; 116:12369-12465. [PMID: 27680197 DOI: 10.1021/acs.chemrev.6b00315] [Citation(s) in RCA: 235] [Impact Index Per Article: 29.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
In the past decade, the asymmetric synthesis of chiral nonracemic isoquinoline alkaloids, a family of natural products showing a wide range of structural diversity and biological and pharmaceutical activity, has been based either on continuation or improvement of known traditional methods or on new, recently developed, strategies. Both diastereoselective and enantioselective catalytic methods have been applied. This review describes the stereochemically modified traditional syntheses (the Pictet-Spengler, the Bischler-Napieralski, and the Pomeranz-Fritsch-Bobbitt) along with strategies based on closing of the nitrogen-containing ring B of the isoquinoline core by the formation of bonds between C1-N2, N2-C3, C1-N2/N2-C3, and C1-N2/C4-C4a atoms. Methods involving introduction of substituents at the C1 carbon of isoquinoline core along with syntheses applying various biocatalytic techniques have also been reviewed.
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Affiliation(s)
- Maria Chrzanowska
- Faculty of Chemistry, Adam Mickiewicz University , Umultowska 89b, 61-614 Poznań, Poland
| | - Agnieszka Grajewska
- Faculty of Chemistry, Adam Mickiewicz University , Umultowska 89b, 61-614 Poznań, Poland
| | - Maria D Rozwadowska
- Faculty of Chemistry, Adam Mickiewicz University , Umultowska 89b, 61-614 Poznań, Poland
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38
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Das S, Liu L, Zheng Y, Alachraf MW, Thiel W, De CK, List B. Nitrated Confined Imidodiphosphates Enable a Catalytic Asymmetric Oxa-Pictet–Spengler Reaction. J Am Chem Soc 2016; 138:9429-32. [DOI: 10.1021/jacs.6b06626] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Sayantani Das
- Max-Planck-Institut für Kohlenforschung, Kaiser
Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Luping Liu
- Max-Planck-Institut für Kohlenforschung, Kaiser
Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Yiying Zheng
- Max-Planck-Institut für Kohlenforschung, Kaiser
Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - M. Wasim Alachraf
- Max-Planck-Institut für Kohlenforschung, Kaiser
Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Walter Thiel
- Max-Planck-Institut für Kohlenforschung, Kaiser
Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Chandra Kanta De
- Max-Planck-Institut für Kohlenforschung, Kaiser
Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Benjamin List
- Max-Planck-Institut für Kohlenforschung, Kaiser
Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
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Benmekhbi L, Louafi F, Roisnel T, Hurvois JP. Synthesis of Tetrahydroisoquinoline Alkaloids and Related Compounds through the Alkylation of Anodically Prepared α-Amino Nitriles. J Org Chem 2016; 81:6721-39. [PMID: 27410716 DOI: 10.1021/acs.joc.6b01419] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
α-Amino nitrile 2a was conveniently prepared in two individual steps from chiral hexafluorophosphate salt isoquinolinium (-)-8b including anodic cyanation as an efficient means to activate the sp(3) C1-H bond of the THIQ nucleus. The lithiation of 2a was carried out in THF at -80 °C in the presence of LDA to produce a stable α-amino carbanion which was condensed on a large variety of alkyl halides. The resulting quaternary α-amino nitriles were subjected to a stereoselective reductive decyanation in ethanol in the presence of NaBH4 as the hydride donor to yield N-Boc-1-alkyl-THIQs (+)-10a-g in up to 97:3 er's after removal of the chiral auxiliary group. Examination of the ORTEP view of THIQ (+)-1f revealed that the newly created stereogenic center had an absolute S configuration. Likewise, (-)-xylopinine was synthesized in four workup steps in an overall 63% yield from α-amino nitrile (+)-2b. In this process, crystallization of an enantioenriched mixture (90:10) of (-)-norlaudanosine with 1 equiv of (-)-N-acetyl-l-leucine afforded the leucinate salt (+)-13 (99:1 dr). Similarly, (+)-salsolidine was displaced from its (-)-DBTA salt (-)-12 in 99:1 er, which was determined by proton and carbon NMR spectroscopy in the presence of thiophosphinic acid (+)-14 as the chiral solvating agent.
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Affiliation(s)
- Lotfi Benmekhbi
- Laboratoire de Chimie des Matériaux, Faculté des Sciences Exactes, Université de Constantine 1 , route de Ain El Bey, 25000 Constantine, Algérie
| | - Fadila Louafi
- Unité de Recherche CHEMS, Faculté des Sciences Exactes, Université de Constantine 1 , route de Ain El Bey, 25000 Constantine, Algérie
| | - Thierry Roisnel
- Centre de Diffractométrie X, Institut des Sciences Chimiques de Rennes, UMR CNRS 6226, CNRS-Université de Rennes 1 , Bat. 10 B, Campus de Beaulieu, Avenue du Général Leclerc, 35042 Rennes Cedex, France
| | - Jean-Pierre Hurvois
- Institut des Sciences Chimiques de Rennes, UMR 6226, CNRS-Université de Rennes 1 , 2 Avenue Léon Bernard, 35043, Rennes Cedex, France
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40
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Quantitative Determination of Alkaloids in Lotus Flower (Flower Buds of Nelumbo nucifera) and Their Melanogenesis Inhibitory Activity. Molecules 2016; 21:molecules21070930. [PMID: 27447599 PMCID: PMC6272935 DOI: 10.3390/molecules21070930] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 07/12/2016] [Indexed: 11/16/2022] Open
Abstract
A quantitative analytical method for five aporphine alkaloids, nuciferine (1), nornuciferine (2), N-methylasimilobine (3), asimilobine (4), and pronuciferine (5), and five benzylisoquinoline alkaloids, armepavine (6), norarmepavine (7), N-methylcoclaurine (8), coclaurine (9), and norjuziphine (10), identified as the constituents responsible for the melanogenesis inhibitory activity of the extracts of lotus flowers (the flower buds of Nelumbo nucifera), has been developed using liquid chromatography-mass spectrometry. The optimum conditions for separation and detection of these 10 alkaloids were achieved on a πNAP column, a reversed-phase column with naphthylethyl group-bonded silica packing material, with CH3CN–0.2% aqueous acetic acid as the mobile phase and using mass spectrometry equipped with a positive-mode electrospray ionization source. According to the protocol established, distributions of these 10 alkaloids in the petal, receptacle, and stamen parts, which were separated from the whole flower, were examined. As expected, excellent correlations were observed between the total alkaloid content and melanogenesis inhibitory activity. Among the active alkaloids, nornuciferine (2) was found to give a carbamate salt (2′′) via formation of an unstable carbamic acid (2′) by absorption of carbon dioxide from the air.
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41
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Kayhan J, Wanner MJ, Ingemann S, van Maarseveen JH, Hiemstra H. Consecutive Pictet-Spengler Condensations toward Bioactive 8-Benzylprotoberberines: Highly Selective Total Syntheses of (+)-Javaberine A, (+)-Javaberine B, and (-)-Latifolian A. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600764] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Jenifer Kayhan
- Van't Hoff Institute for Molecular Sciences; University of Amsterdam; Science Park 904 1098 XH Amsterdam The Netherlands
| | - Martin J. Wanner
- Van't Hoff Institute for Molecular Sciences; University of Amsterdam; Science Park 904 1098 XH Amsterdam The Netherlands
| | - Steen Ingemann
- Van't Hoff Institute for Molecular Sciences; University of Amsterdam; Science Park 904 1098 XH Amsterdam The Netherlands
| | - Jan H. van Maarseveen
- Van't Hoff Institute for Molecular Sciences; University of Amsterdam; Science Park 904 1098 XH Amsterdam The Netherlands
| | - Henk Hiemstra
- Van't Hoff Institute for Molecular Sciences; University of Amsterdam; Science Park 904 1098 XH Amsterdam The Netherlands
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Balti M, Efrit ML, Leadbeater NE. Preparation of vinyl ethers using a Wittig approach, and their subsequent hydrogenation employing continuous-flow processing. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.03.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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43
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Parra RD, Maresh J. Structural and energetics aspects of a proposed mechanism for the phosphate-mediated Pictet–Spengler cyclization reaction: A computational study. COMPUT THEOR CHEM 2016. [DOI: 10.1016/j.comptc.2016.02.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Kilgore MB, Augustin MM, May GD, Crow JA, Kutchan TM. CYP96T1 of Narcissus sp. aff. pseudonarcissus Catalyzes Formation of the Para-Para' C-C Phenol Couple in the Amaryllidaceae Alkaloids. FRONTIERS IN PLANT SCIENCE 2016; 7:225. [PMID: 26941773 PMCID: PMC4766306 DOI: 10.3389/fpls.2016.00225] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 02/10/2016] [Indexed: 05/07/2023]
Abstract
The Amaryllidaceae alkaloids are a family of amino acid derived alkaloids with many biological activities; examples include haemanthamine, haemanthidine, galanthamine, lycorine, and maritidine. Central to the biosynthesis of the majority of these alkaloids is a C-C phenol-coupling reaction that can have para-para', para-ortho', or ortho-para' regiospecificity. Through comparative transcriptomics of Narcissus sp. aff. pseudonarcissus, Galanthus sp., and Galanthus elwesii we have identified a para-para' C-C phenol coupling cytochrome P450, CYP96T1, capable of forming the products (10bR,4aS)-noroxomaritidine and (10bS,4aR)-noroxomaritidine from 4'-O-methylnorbelladine. CYP96T1 was also shown to catalyzed formation of the para-ortho' phenol coupled product, N-demethylnarwedine, as less than 1% of the total product. CYP96T1 co-expresses with the previously characterized norbelladine 4'-O-methyltransferase. The discovery of CYP96T1 is of special interest because it catalyzes the first major branch in Amaryllidaceae alkaloid biosynthesis. CYP96T1 is also the first phenol-coupling enzyme characterized from a monocot.
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Affiliation(s)
| | | | | | - John A. Crow
- National Center for Genome ResourcesSanta Fe, NM, USA
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45
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Abstract
An operationally simple and mild one-pot protocol for the synthesis of a variety of 3,5-diarylpyridines from β-nitrostyrenes was achieved by using elemental iron. This reaction proceeds via reduction of the nitro group, resulting in in situ imine formation followed by trimolecular condensation with concomitant debenzylative aromatization. By employing this method, a series of symmetrical and unsymmetrical 3,5-diarylpyridines were synthesized with good to excellent yields. In addition, this method was also utilized for the synthesis of Sch-21418, an anti-inflammatory agent on gram scale.
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46
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Ghirga F, Quaglio D, Ghirga P, Berardozzi S, Zappia G, Botta B, Mori M, D'Acquarica I. Occurrence of Enantioselectivity in Nature: The Case of (S)-Norcoclaurine. Chirality 2016; 28:169-80. [PMID: 26729048 DOI: 10.1002/chir.22566] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 11/10/2015] [Accepted: 11/11/2015] [Indexed: 11/06/2022]
Abstract
This review article is aimed at providing a monographic overview on (S)-norcoclaurine (NC) alkaloid from three diverse points of view, collected all together for the first time: 1) the synthetic one, where the compound is seen as a target chiral molecule to be obtained in the highest optical purity and as a starting point for the development of biocatalytic asymmetric syntheses of tetrahydroisoquinoline alkaloids; 2) the chromatographic one, which addresses the HPLC separation of the two NC enantiomers; and 3) the biochemical one, for which a thorough understanding of the topology and mechanism of action of norcoclaurine synthase (NCS) enzyme is still a matter of debate. Special emphasis on the most recent studies in the field is given by discussing the results published by the main research groups who are working on NC and NCS.
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Affiliation(s)
- Francesca Ghirga
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Rome, Italy
| | - Deborah Quaglio
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza University of Rome, Rome, Italy
| | - Patrizio Ghirga
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza University of Rome, Rome, Italy
| | - Simone Berardozzi
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Rome, Italy
| | - Giovanni Zappia
- Dipartimento di Scienze Biomolecolari, Università degli Studi di Urbino "Carlo Bo", Urbino, Italy
| | - Bruno Botta
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza University of Rome, Rome, Italy
| | - Mattia Mori
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Rome, Italy
| | - Ilaria D'Acquarica
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza University of Rome, Rome, Italy
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47
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Nakaoka S, Murakami Y, Kataoka Y, Ura Y. Maleimide-assisted anti-Markovnikov Wacker-type oxidation of vinylarenes using molecular oxygen as a terminal oxidant. Chem Commun (Camb) 2016; 52:335-8. [DOI: 10.1039/c5cc06746d] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Arylacetaldehydes were successfully synthesized by anti-Markovnikov Wacker-type oxidation of vinylarenes using 1 atm O2 as a terminal oxidant.
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Affiliation(s)
- Sonoe Nakaoka
- Department of Chemistry
- Faculty of Science
- Nara Women's University
- Kitauoyanishi-machi, Nara
- Japan
| | - Yuka Murakami
- Department of Chemistry
- Faculty of Science
- Nara Women's University
- Kitauoyanishi-machi, Nara
- Japan
| | - Yasutaka Kataoka
- Department of Chemistry
- Faculty of Science
- Nara Women's University
- Kitauoyanishi-machi, Nara
- Japan
| | - Yasuyuki Ura
- Department of Chemistry
- Faculty of Science
- Nara Women's University
- Kitauoyanishi-machi, Nara
- Japan
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48
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Talk RA, Duperray A, Li X, Coldham I. Synthesis of substituted tetrahydroisoquinolines by lithiation then electrophilic quench. Org Biomol Chem 2016; 14:4908-17. [PMID: 27169500 DOI: 10.1039/c6ob00577b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lithiation then electrophilic quench of tetrahydroisoquinolines provides access to 1-substituted products. Removal of the N-Boc group allows rapid access to natural products such as (±)-crispine A.
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Affiliation(s)
- Ruaa A. Talk
- Department of Chemistry
- University of Sheffield
- Sheffield
- UK
| | | | - Xiabing Li
- Department of Chemistry
- University of Sheffield
- Sheffield
- UK
| | - Iain Coldham
- Department of Chemistry
- University of Sheffield
- Sheffield
- UK
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49
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