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Jin X, Cheng H, Chen X, Cao X, Xiao C, Ding F, Qu H, Wang PG, Feng Y, Yang GY. A modular chemoenzymatic cascade strategy for the structure-customized assembly of ganglioside analogs. Commun Chem 2024; 7:17. [PMID: 38238524 PMCID: PMC10796935 DOI: 10.1038/s42004-024-01102-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Accepted: 01/08/2024] [Indexed: 01/22/2024] Open
Abstract
Gangliosides play vital biological regulatory roles and are associated with neurological system diseases, malignancies, and immune deficiencies. They have received extensive attention in developing targeted drugs and diagnostic markers. However, it is difficult to obtain enough structurally defined gangliosides and analogs especially at an industrial-relevant scale, which prevent exploring structure-activity relationships and identifying drug ingredients. Here, we report a highly modular chemoenzymatic cascade assembly (MOCECA) strategy for customized and large-scale synthesis of ganglioside analogs with various glycan and ceramide epitopes. We typically accessed five gangliosides with therapeutic promising and systematically prepared ten GM1 analogs with diverse ceramides. Through further process amplification, we achieved industrial production of ganglioside GM1 in the form of modular assembly at hectogram scale. Using MOCECA-synthesized GM1 analogs, we found unique ceramide modifications on GM1 could enhance the ability to promote neurite outgrowth. By comparing the structures with synthetic analogs, we further resolved the problem of contradicting descriptions for GM1 components in different pharmaceutical documents by reinterpreting the exact two-component structures of commercialized GM1 drugs. Because of its applicability and stability, the MOCECA strategy can be extended to prepare other glycosphingolipid structures, which may pave the way for developing new glycolipid drugs.
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Affiliation(s)
- Xuefeng Jin
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
- Department of Clinical Pharmaceutics, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Hanchao Cheng
- School of Food and Drug, Shenzhen Polytechnic University, Shenzhen, China
- Department of Pharmacology, Key University Laboratory of Metabolism and Health of Guangdong, School of Medicine, Southern University of Science and Technology, Guangdong, China
| | - Xiaohui Chen
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Xuefeng Cao
- Glycogene LLC, 10th Floor, Building 3, Wuhan Precision Medicine Industrial Base, East Lake New Technology Development Zone, Wuhan, China
| | - Cong Xiao
- Glycogene LLC, 10th Floor, Building 3, Wuhan Precision Medicine Industrial Base, East Lake New Technology Development Zone, Wuhan, China
| | - Fengling Ding
- Glycogene LLC, 10th Floor, Building 3, Wuhan Precision Medicine Industrial Base, East Lake New Technology Development Zone, Wuhan, China
| | - Huirong Qu
- Glycogene LLC, 10th Floor, Building 3, Wuhan Precision Medicine Industrial Base, East Lake New Technology Development Zone, Wuhan, China
| | - Peng George Wang
- Department of Pharmacology, Key University Laboratory of Metabolism and Health of Guangdong, School of Medicine, Southern University of Science and Technology, Guangdong, China
| | - Yan Feng
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Guang-Yu Yang
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China.
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2
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Oliveira PHR, Tordato ÉA, Vélez JAC, Carneiro PS, Paixão MW. Visible-Light Mediated Carbamoylation of Nitrones under a Continuous Flow Regime. J Org Chem 2022; 88:6407-6419. [PMID: 36576774 DOI: 10.1021/acs.joc.2c02266] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Herein, we report a rapid and scalable continuous-flow photocatalytic approach for the carbamoylation of nitrones. This protocol makes use of readily available 4-amido-1,4 dihydropyridines as carbamoyl radical precursors. The scope of this transformation exhibits high compatibility with complex structures containing amino acids, peptides, and glycosides. Importantly, the developed method allows a photocatalytic synthetic strategy in combination with flow conditions, maximizing the potential and efficiency for the synthesis of valuable α-(N-hydroxy)amino amides.
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Affiliation(s)
- Pedro H R Oliveira
- Centre of Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry, Federal University of São Carlos - UFSCar, São Carlos, São Paulo 13565-905, Brazil
| | - Éverton A Tordato
- Centre of Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry, Federal University of São Carlos - UFSCar, São Carlos, São Paulo 13565-905, Brazil
| | - Jeimy A C Vélez
- Centre of Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry, Federal University of São Carlos - UFSCar, São Carlos, São Paulo 13565-905, Brazil
| | - Pablo S Carneiro
- Centre of Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry, Federal University of São Carlos - UFSCar, São Carlos, São Paulo 13565-905, Brazil
| | - Márcio W Paixão
- Centre of Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry, Federal University of São Carlos - UFSCar, São Carlos, São Paulo 13565-905, Brazil
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3
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Abstract
Nitrones are important compounds and are highly useful in many aspects. The first part describes the methods for synthesis of nitrones, which are useful and environmentally friendly. Catalytic oxidations, condensations, and other useful reactions are described. The nitrones thus obtained are key intermediates for the synthesis of biologically important nitrogen compounds. The second part describes the fundamental transformations of nitrones, which will provide the strategies and means for the construction of nitrogen compounds. The reactions with nucleophiles or radicals, C-H functionalization, and various addition reactions are described. The last reactions are particularly important for highly selective carbon-carbon bond formations. 1,3-Dipolar cycloaddition reactions are excluded because the size of the review is limited and excellent reviews have been published in Chemical Reviews.
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Affiliation(s)
- Shun-Ichi Murahashi
- Department of Chemistry, Graduate School of Engineering Science , Osaka University , 1-3, Machikaneyama , Toyonaka , Osaka 560-8531 , Japan
| | - Yasushi Imada
- Department of Applied Chemistry , Tokushima University , 2-1, Minamijosanjima , Tokushima 770-8506 , Japan
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4
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An XD, Zhang H, Xu Q, Yu L, Yu S. Stereodivergent Synthesis of α-Aminomethyl Cinnamyl Ethers via
Photoredox-Catalyzed Radical Relay Reaction. CHINESE J CHEM 2018. [DOI: 10.1002/cjoc.201800387] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xiao-De An
- State Key Laboratory of Analytical Chemistry for Life Science, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University; Nanjing 210023 China
| | - Hao Zhang
- Guangling College, School of Chemistry and Chemical Engineering, Yangzhou University; Yangzhou Jiangsu 225002 China
| | - Qing Xu
- Guangling College, School of Chemistry and Chemical Engineering, Yangzhou University; Yangzhou Jiangsu 225002 China
| | - Lei Yu
- Guangling College, School of Chemistry and Chemical Engineering, Yangzhou University; Yangzhou Jiangsu 225002 China
| | - Shouyun Yu
- State Key Laboratory of Analytical Chemistry for Life Science, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University; Nanjing 210023 China
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5
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Abstract
This review covers diastereo- and enantiodivergent catalyzed reactions in acyclic and cyclic systems using metal complexes or organocatalysts. Among them, nucleophilic addition to carbon-carbon and carbon-nitrogen double bonds, α-functionalization of carbonyl compounds, allylic substitutions, and ring opening of oxiranes and aziridines are considered. The diastereodivergent synthesis of alkenes from alkynes is also included. Finally, stereodivergent intramolecular and intermolecular cycloadditions and other cyclizations are also reported.
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Affiliation(s)
- Irina P Beletskaya
- Chemistry Department , M. V. Lomonosov Moscow State University , Leninskie Gory 1 , 119992 Moscow , Russia
| | - Carmen Nájera
- Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA) , Universidad de Alicante , Apdo. 99 , E-03080 Alicante , Spain
| | - Miguel Yus
- Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA) , Universidad de Alicante , Apdo. 99 , E-03080 Alicante , Spain
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6
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Merino P, Tejero T, Delso I, Matute R. New mechanistic interpretations for nitrone reactivity. Org Biomol Chem 2017; 15:3364-3375. [DOI: 10.1039/c7ob00429j] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reactivity of nitrones in cycloadditions and related reactions is revisited by introducing a topological perspective.
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Affiliation(s)
- Pedro Merino
- Instituto de Biocomputación y Fisica de Sistemas Complejos (BIFI)
- Universidad de Zaragoza
- 50009 Zaragoza
- Spain
| | - Tomás Tejero
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)
- Universidad de Zaragoza
- CSIC
- 50009 Zaragoza
- Spain
| | - Ignacio Delso
- Servicio de Resonancia Magnética Nuclear
- CEQMA
- Universidad de Zaragoza
- CSIC
- 50009 Zaragoza
| | - Rosa Matute
- Departamento de Ingeniería Química y Tecnologías del Medio Ambiente
- EINA
- Edificio Torres Quevedo
- 50014 Zaragoza
- Spain
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7
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Chen YR, Zhan G, Du W, Chen YC. Regioselective Asymmetric Formal (3+2) Cycloadditions of Nitrone Ylides from Isatins and Enals. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600805] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Yu-Rong Chen
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education; West China School of Pharmacy; Sichuan University; Chengdu 610041 People's Republic of China
| | - Gu Zhan
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education; West China School of Pharmacy; Sichuan University; Chengdu 610041 People's Republic of China
| | - Wei Du
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education; West China School of Pharmacy; Sichuan University; Chengdu 610041 People's Republic of China
| | - Ying-Chun Chen
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education; West China School of Pharmacy; Sichuan University; Chengdu 610041 People's Republic of China
- College of Pharmacy; Third Military Medical University; Shapingba Chongqing 400038 People's Republic of China
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8
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Congdon EA, Nolin KA. Calcium catalyzed Mukaiyama–Mannich addition of silyl enol ethers to nitrones. CATAL COMMUN 2016. [DOI: 10.1016/j.catcom.2016.02.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
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9
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Kováčik A, Opálka L, Šilarová M, Roh J, Vávrová K. Synthesis of 6-hydroxyceramide using ruthenium-catalyzed hydrosilylation–protodesilylation. Unexpected formation of a long periodicity lamellar phase in skin lipid membranes. RSC Adv 2016. [DOI: 10.1039/c6ra16565f] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Synthesis of 6-hydroxysphingosine ceramide and formation of unusual lamellar phase in model membranes of human epidermal barrier.
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Affiliation(s)
- Andrej Kováčik
- Faculty of Pharmacy in Hradec Králové
- Charles University in Prague
- 50005 Hradec Králové
- Czech Republic
| | - Lukáš Opálka
- Faculty of Pharmacy in Hradec Králové
- Charles University in Prague
- 50005 Hradec Králové
- Czech Republic
| | - Michaela Šilarová
- Faculty of Pharmacy in Hradec Králové
- Charles University in Prague
- 50005 Hradec Králové
- Czech Republic
| | - Jaroslav Roh
- Faculty of Pharmacy in Hradec Králové
- Charles University in Prague
- 50005 Hradec Králové
- Czech Republic
| | - Kateřina Vávrová
- Faculty of Pharmacy in Hradec Králové
- Charles University in Prague
- 50005 Hradec Králové
- Czech Republic
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10
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Wade Downey C, Ingersoll JA, Glist HM, Dombrowski CM, Barnett AT. One-Pot Silyl Ketene Acetal-Formation Mukaiyama-Mannich Additions to Imines Mediated by Trimethylsilyl Trifluoromethanesulfonate. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500958] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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11
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Roca-López D, Polo V, Tejero T, Merino P. Mechanism Switch in Mannich-Type Reactions: ELF and NCI Topological Analyses of the Reaction between Nitrones and Lithium Enolates. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500447] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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12
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Roca-López D, Polo V, Tejero T, Merino P. Understanding Bond Formation in Polar One-Step Reactions. Topological Analyses of the Reaction between Nitrones and Lithium Ynolates. J Org Chem 2015; 80:4076-83. [DOI: 10.1021/acs.joc.5b00413] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- David Roca-López
- Laboratorio de Sı́ntesis Asimétrica,
Departamento de Sı́ntesis y Estructura de Biomoléculas,
Instituto de Sı́ntesis Quı́mica y Catálisis
Homogénea (ISQCH), Universidad de Zaragoza, CSIC, Campus San Francisco, E-50009 Zaragoza, Aragón, Spain
| | - Victor Polo
- Departamento de Quı́mica Fı́sica
and Insitituto de Biocomputación y Fı́sica de Sistemas
Complejos (BIFI), Universidad de Zaragoza, Campus San Francisco, E-50009 Zaragoza, Aragón, Spain
| | - Tomás Tejero
- Laboratorio de Sı́ntesis Asimétrica,
Departamento de Sı́ntesis y Estructura de Biomoléculas,
Instituto de Sı́ntesis Quı́mica y Catálisis
Homogénea (ISQCH), Universidad de Zaragoza, CSIC, Campus San Francisco, E-50009 Zaragoza, Aragón, Spain
| | - Pedro Merino
- Laboratorio de Sı́ntesis Asimétrica,
Departamento de Sı́ntesis y Estructura de Biomoléculas,
Instituto de Sı́ntesis Quı́mica y Catálisis
Homogénea (ISQCH), Universidad de Zaragoza, CSIC, Campus San Francisco, E-50009 Zaragoza, Aragón, Spain
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13
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Downey CW, Dombrowski CM, Maxwell EN, Safran CL, Akomah OA. One-Pot Enol Silane Formation/Mukaiyama-Mannich Addition of Ketones, Amides, and Thioesters to Nitrones in the Presence of Trialkylsilyl Trifluoromethanesulfonates. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300691] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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14
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Xu X, Ratnikov MO, Zavalij PY, Doyle MP. Multifunctionalized 3-hydroxypyrroles in a three-step, one-pot cascade process from methyl 3-TBSO-2-diazo-3-butenoate and nitrones. Org Lett 2011; 13:6122-5. [PMID: 22032199 DOI: 10.1021/ol2026125] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The synthesis of N-aryl-2-carboxyl-3-hydroxy-5-arylpyrroles has been achieved in high yield by the combination of a TBSO-substituted vinyldiazoacetate and nitrones in a one-pot cascade process involving copper-catalyzed Mannich addition, dirhodium-catalyzed dinitrogen extrusion and N-OTBS insertion, and acid-promoted aromatization (elimination).
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Affiliation(s)
- Xinfang Xu
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
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15
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Nitrone Ylides: Two Possible 1,3-Dipolar Cycloadditions but Only One Stepwise Formation of all-cis-5-Aryl-2,3,5-trisubstituted N-Hydroxypyrrolidines. European J Org Chem 2011. [DOI: 10.1002/ejoc.201101035] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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16
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Maity S, Ghosh S. An asymmetric route to 2,3-epoxy-syn-1,4-cyclohexane diol derivatives using ring closing metathesis (RCM). J CHEM SCI 2010. [DOI: 10.1007/s12039-010-0066-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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17
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Diez-Martinez A, Tejero T, Merino P. Experimental and theoretical studies on Mannich-type reactions of chiral non-racemic N-(benzyloxyethyl) nitrones. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.12.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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18
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Parameswar AR, Hawkins JA, Mydock LK, Sands MS, Demchenko AV. Concise Synthesis of the Unnatural Sphingosine and Psychosine Enantiomer. European J Org Chem 2010; 2010. [PMID: 24371429 DOI: 10.1002/ejoc.201000024] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The accumulation of psychosine (galactosyl sphingosine) has been associated with the pathogenesis of Krabbe disease, however, the exact mechanism of its cytotoxicity remains unclear. Herein, we describe the synthesis of the unnatural enantiomer of erythrosphingosine, psychosine, and related derivatives thereof that would allow for the mechanistic elucidation of the toxicity of psychosine.
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Affiliation(s)
- Archana R Parameswar
- Department of Chemistry and Biochemistry, University of Missouri - St. Louis, One University Boulevard, St. Louis, Missouri 63121, USA
| | - Jacqueline A Hawkins
- Department of Internal Medicine and Department of Genetics, Washington University School of Medicine, St. Louis, Missouri 63110, USA
| | - Laurel K Mydock
- Department of Chemistry and Biochemistry, University of Missouri - St. Louis, One University Boulevard, St. Louis, Missouri 63121, USA
| | - Mark S Sands
- Department of Internal Medicine and Department of Genetics, Washington University School of Medicine, St. Louis, Missouri 63110, USA
| | - Alexei V Demchenko
- Department of Chemistry and Biochemistry, University of Missouri - St. Louis, One University Boulevard, St. Louis, Missouri 63121, USA
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19
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Wu SF, Ruan YP, Zheng X, Huang PQ. Samarium diiodide-mediated reductive couplings of chiral nitrones with aldehydes/ketones and acyl chlorides. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.01.011] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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20
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Black FJ, Kocienski PJ. Synthesis of phalluside-1 and Sch II using 1,2-metallate rearrangements. Org Biomol Chem 2010; 8:1188-93. [DOI: 10.1039/b920285d] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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22
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Wu SF, Zheng X, Ruan YP, Huang PQ. A new approach to 3-hydroxyprolinol derivatives by samarium diiodide-mediated reductive coupling of chiral nitrone with carbonyl compounds. Org Biomol Chem 2009; 7:2967-75. [DOI: 10.1039/b906224f] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Abraham E, Davies SG, Millican NL, Nicholson RL, Roberts PM, Smith AD. Asymmetric synthesis of vicinal amino alcohols: xestoaminol C, sphinganine and sphingosine. Org Biomol Chem 2008; 6:1655-64. [DOI: 10.1039/b801357h] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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24
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Berini C, Minassian F, Pelloux-Léon N, Denis JN, Vallée Y, Philouze C. Efficient stereoselective nucleophilic addition of pyrroles to chiral nitrones. Org Biomol Chem 2008; 6:2574-86. [DOI: 10.1039/b802997k] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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26
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Yang H, Liebeskind LS. A concise and scalable synthesis of high enantiopurity (-)-D-erythro-sphingosine using peptidyl thiol ester-boronic acid cross-coupling. Org Lett 2007; 9:2993-5. [PMID: 17608484 PMCID: PMC2663357 DOI: 10.1021/ol070991m] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A short and efficient synthesis of high enantiopurity (-)-D-erythro-sphingosine has been achieved in 71% yield over 6 steps from N-Boc-L-serine. The key steps are high yield, racemization-free, palladium-catalyzed, copper(I)-mediated coupling of the thiophenyl ester of N-Boc-O-TBS L-serine with E-1-pentadecenyl boronic acid and the highly diastereoselective reduction of the resulting peptidyl ketone with LiAl(O-t-Bu)3H. By using this concise route (-)-D-erythro-sphingosine can be prepared on large scale and in high enantio- and diastereopurity (ee >99%, de up to 99%).
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27
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Pham VT, Joo JE, Tian YS, Oh CY, Ham WH. A concise synthesis of a promising protein kinase C inhibitor: D-erythro-sphingosine. Arch Pharm Res 2007; 30:22-7. [PMID: 17328238 DOI: 10.1007/bf02977774] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
In this study, we explored a convenient and concise route for synthesis of D-erythro-sphingosine 1 from commercially available and cheap L-serine. The key steps are simple preparation of amino ketone 5 from Weinreb amide 3 and high diastereoselective reduction of amino ketone 5 to give the natural erythro-(anti-) isomer.
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Affiliation(s)
- Van-Thoai Pham
- College of Pharmacy, SungKyunKwan University, Suwon 440-746, Korea
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28
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