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Wang L, Zhu X, Wang B, Wang Y, Wang M, Yang S, Su C, Chang J, Zhu B. Design, Synthesis, and Activity Evaluation of Fluorine-Containing Scopolamine Analogues as Potential Antidepressants. J Med Chem 2024; 67:5391-5420. [PMID: 38354305 DOI: 10.1021/acs.jmedchem.3c01970] [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: 02/16/2024]
Abstract
This study aimed to develop novel rapid-acting antidepressants with sustained efficacy and favorable safety profiles. We designed and synthesized a series of fluorine-containing scopolamine analogues and evaluated their antidepressant potential. In vitro cytotoxicity assays showed that most of these compounds exhibited minimal toxicity against neuronal and non-neuronal mammalian cell lines (IC50 > 100 μM). The antidepressant activities of the compounds were evaluated using the tail suspension test, and S-3a was identified as a lead compound with potent and sustained antidepressant effects. Behaviorally, S-3a alleviated depressive symptoms in mice and displayed a higher cognitive safety margin than scopolamine. Toxicological assessments confirmed S-3a's safety, while pharmacokinetics showed a rapid clearance (half-life: 16.6 min). Mechanistically, S-3a antagonized M1 receptors and elevated BDNF levels, suggesting its potential as an antidepressant for further exploration.
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Affiliation(s)
- Le Wang
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, NMPA Key Laboratory for Research and Evaluation of Innovative Drug, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Xushuo Zhu
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, NMPA Key Laboratory for Research and Evaluation of Innovative Drug, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Bo Wang
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, NMPA Key Laboratory for Research and Evaluation of Innovative Drug, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Yijing Wang
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, NMPA Key Laboratory for Research and Evaluation of Innovative Drug, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Mengqi Wang
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, NMPA Key Laboratory for Research and Evaluation of Innovative Drug, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Shuping Yang
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, NMPA Key Laboratory for Research and Evaluation of Innovative Drug, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Chenhe Su
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, NMPA Key Laboratory for Research and Evaluation of Innovative Drug, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Junbiao Chang
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, NMPA Key Laboratory for Research and Evaluation of Innovative Drug, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Bo Zhu
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, NMPA Key Laboratory for Research and Evaluation of Innovative Drug, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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2
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Dabiri M, Lehi NF, Mohammadian R. Catalytic stereoselective Mannich-type reactions for construction of fluorinated compounds. Mol Divers 2021; 26:1267-1310. [PMID: 34228344 DOI: 10.1007/s11030-021-10235-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Accepted: 05/13/2021] [Indexed: 10/20/2022]
Abstract
For its unique role in developing and designing new bioactive materials and healthcare products, fluoro-organic compounds have attracted remarkable interest. Along with ever-increasing demand for a wider availability of fluorine-containing structural units, a large diversity of methods has been introduced to incorporate fluorine atoms specially in a stereoselective fashion. Among them, catalytic Mannich reaction can proceed with a broad variety of reactants and open clear paths for the synthesis of versatile amine synthons in the synthesis of natural product and pharmaceutical molecules. This review provides an overview of the employment of catalytic asymmetric Mannich reactions in the synthesis of fluorine-containing amine compounds and highlights the conceivable distinct mechanisms.
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Affiliation(s)
- Minoo Dabiri
- Department of Organic Chemistry and Oil, Faculty of Chemistry and Petroleum Sciences, Shahid Beheshti University, 1983969411, Tehran, Islamic Republic of Iran.
| | - Noushin Farajinia Lehi
- Department of Organic Chemistry and Oil, Faculty of Chemistry and Petroleum Sciences, Shahid Beheshti University, 1983969411, Tehran, Islamic Republic of Iran
| | - Reza Mohammadian
- Department of Organic Chemistry and Oil, Faculty of Chemistry and Petroleum Sciences, Shahid Beheshti University, 1983969411, Tehran, Islamic Republic of Iran
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3
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Sloand JN, Miller MA, Medina SH. Fluorinated peptide biomaterials. Pept Sci (Hoboken) 2021; 113:e24184. [PMID: 34541446 PMCID: PMC8448251 DOI: 10.1002/pep2.24184] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 06/30/2020] [Indexed: 12/20/2022]
Abstract
Fluorinated compounds, while rarely used by nature, are emerging as fundamental ingredients in biomedical research, with applications in drug discovery, metabolomics, biospectroscopy, and, as the focus of this review, peptide/protein engineering. Leveraging the fluorous effect to direct peptide assembly has evolved an entirely new class of organofluorine building blocks from which unique and bioactive materials can be constructed. Here, we discuss three distinct peptide fluorination strategies used to design and induce peptide assembly into nano-, micro-, and macrosupramolecular states that potentiate high-ordered organization into material scaffolds. These fluorine-tailored peptide assemblies employ the unique fluorous environment to boost biofunctionality for a broad range of applications, from drug delivery to antibacterial coatings. This review provides foundational tactics for peptide fluorination and discusses the utility of these fluorous-directed hierarchical structures as material platforms in diverse biomedical applications.
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Affiliation(s)
- Janna N Sloand
- Department of Biomedical Engineering, Penn State University, University Park, Pennsylvania, USA
| | - Michael A Miller
- Department of Biomedical Engineering, Penn State University, University Park, Pennsylvania, USA
| | - Scott H Medina
- Department of Biomedical Engineering, Penn State University, University Park, Pennsylvania, USA
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4
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Foubelo F, Yus M. Chiral N-tert-Butylsulfinyl Imines: New Discoveries. CHEM REC 2020; 21:1300-1341. [PMID: 33241905 DOI: 10.1002/tcr.202000122] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 10/27/2020] [Indexed: 12/21/2022]
Abstract
In this account the reactions of chiral N-tert-butylsulfinyl imines with organometallic reagents such as organoalkaline (lithium, sodium, potassium and cesium derivatives), organomagnesium, organozinc, organoboron, organoaluminium, organoindium and organosilicon compounds is comprehensively described. The reactivity in all cases is derived to synthetic applications in order to prepare interesting organic nitrogenated molecules, especially in the field of alkaloid compounds.
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Affiliation(s)
- Francisco Foubelo
- Departamento de Química Orgánica and Instituto de Síntesis Orgánica (ISO), 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
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5
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Ye W, Ni C, Hu J. Stereoselective nucleophilic monofluoromethylation of tert-butanesulfinimines: Dynamic thermodynamic Resolution of racemic α-fluoro carbanions. J Fluor Chem 2020. [DOI: 10.1016/j.jfluchem.2020.109451] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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6
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Qiu ZB, Ren XF, Chen XY, Chen LY, Ji J, Li Y. MgBr2OEt2-promoted direct Aldol reactions of S-aryl 2-fluoroethanethioate. J Fluor Chem 2019. [DOI: 10.1016/j.jfluchem.2019.109368] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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7
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Sim J, Campbell MW, Molander GA. Synthesis of α-Fluoro-α-Amino Acid Derivatives via Photoredox-Catalyzed Carbofluorination. ACS Catal 2019; 9:1558-1563. [PMID: 31588366 DOI: 10.1021/acscatal.8b04284] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A mild, metal-free, regioselective carbofluorination of dehydroalanine derivatives has been developed. Alkyl radicals resulting from visible-light photoredox catalysis engage in a radical conjugate addition to dehydroalanine, with subsequent fluorination of the newly generated radical to afford an α-fluoro-α-amino acid. By using a highly oxidizing organic photocatalyst, this process incorporates non-stabilized primary, secondary, and tertiary alkyl radicals derived from commercially available alkyltrifluoroborates to furnish a wide range of fluorinated unnatural amino acids.
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Affiliation(s)
- Jaehoon Sim
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
| | - Mark W. Campbell
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
| | - Gary A. Molander
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
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8
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A diastereoselective Mannich reaction of α-fluoroketones with ketimines: Construction of β-fluoroamine motifs with vicinal tetrasubstituted stereocenters. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.04.051] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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9
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Zhou S, Wang S, Wang J, Nian Y, Peng P, Soloshonok VA, Liu H. Configurationally Stable (S
)- and (R
)-α-Methylproline-Derived Ligands for the Direct Chemical Resolution of Free Unprotected β3
-Amino Acids. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800120] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Shengbin Zhou
- University of Chinese Academy of Sciences; No.19A Yuquan Road 100049 Beijing China
- CAS Key Laboratory of Receptor Research; Shanghai Institute of Materia Medica; Chinese Academy of Sciences; 555 Zuchongzhi Road 201203 Shanghai China
| | - Shuni Wang
- University of Chinese Academy of Sciences; No.19A Yuquan Road 100049 Beijing China
- CAS Key Laboratory of Receptor Research; Shanghai Institute of Materia Medica; Chinese Academy of Sciences; 555 Zuchongzhi Road 201203 Shanghai China
| | - Jiang Wang
- University of Chinese Academy of Sciences; No.19A Yuquan Road 100049 Beijing China
- CAS Key Laboratory of Receptor Research; Shanghai Institute of Materia Medica; Chinese Academy of Sciences; 555 Zuchongzhi Road 201203 Shanghai China
| | - Yong Nian
- University of Chinese Academy of Sciences; No.19A Yuquan Road 100049 Beijing China
- CAS Key Laboratory of Receptor Research; Shanghai Institute of Materia Medica; Chinese Academy of Sciences; 555 Zuchongzhi Road 201203 Shanghai China
| | - Panfeng Peng
- University of Chinese Academy of Sciences; No.19A Yuquan Road 100049 Beijing China
- CAS Key Laboratory of Receptor Research; Shanghai Institute of Materia Medica; Chinese Academy of Sciences; 555 Zuchongzhi Road 201203 Shanghai China
| | - Vadim A. Soloshonok
- Department of Organic Chemistry I; Faculty of Chemistry; University of the Basque Country UPV/EHU; Paseo Manuel Lardizábal 3 20018 San Sebastián Spain
- IKERBASQUE - Basque Foundation for Science; Maria Diaz de Haro 3 48013 Bilbao Spain
| | - Hong Liu
- University of Chinese Academy of Sciences; No.19A Yuquan Road 100049 Beijing China
- CAS Key Laboratory of Receptor Research; Shanghai Institute of Materia Medica; Chinese Academy of Sciences; 555 Zuchongzhi Road 201203 Shanghai China
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10
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Zhu Y, Han J, Wang J, Shibata N, Sodeoka M, Soloshonok VA, Coelho JAS, Toste FD. Modern Approaches for Asymmetric Construction of Carbon-Fluorine Quaternary Stereogenic Centers: Synthetic Challenges and Pharmaceutical Needs. Chem Rev 2018; 118:3887-3964. [PMID: 29608052 DOI: 10.1021/acs.chemrev.7b00778] [Citation(s) in RCA: 412] [Impact Index Per Article: 68.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
New methods for preparation of tailor-made fluorine-containing compounds are in extremely high demand in nearly every sector of chemical industry. The asymmetric construction of quaternary C-F stereogenic centers is the most synthetically challenging and, consequently, the least developed area of research. As a reflection of this apparent methodological deficit, pharmaceutical drugs featuring C-F stereogenic centers constitute less than 1% of all fluorine-containing medicines currently on the market or in clinical development. Here we provide a comprehensive review of current research activity in this area, including such general directions as asymmetric electrophilic fluorination via organocatalytic and transition-metal catalyzed reactions, asymmetric elaboration of fluorine-containing substrates via alkylations, Mannich, Michael, and aldol additions, cross-coupling reactions, and biocatalytic approaches.
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Affiliation(s)
- Yi Zhu
- School of Chemistry and Chemical Engineering, State Key laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials , Nanjing University , 210093 Nanjing , China
| | - Jianlin Han
- School of Chemistry and Chemical Engineering, State Key laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials , Nanjing University , 210093 Nanjing , China
| | - Jiandong Wang
- Department of Nanopharmaceutical Sciences & Department of Frontier Materials , Nagoya Institute of Technology , Gokiso, Showa-ku , Nagoya 466-8555 , Japan
| | - Norio Shibata
- Department of Nanopharmaceutical Sciences & Department of Frontier Materials , Nagoya Institute of Technology , Gokiso, Showa-ku , Nagoya 466-8555 , Japan
| | - Mikiko Sodeoka
- Synthetic Organic Chemistry Laboratory , RIKEN, and RIKEN Center for Sustainable Resourse Science , 2-1 Hirosawa , Wako 351-0198 , Japan
| | - Vadim A Soloshonok
- Department of Organic Chemistry I, Faculty of Chemistry , University of the Basque Country UPV/EHU , 20018 San Sebastian , Spain.,IKERBASQUE, Basque Foundation for Science , 48011 Bilbao , Spain
| | - Jaime A S Coelho
- Department of Chemistry , University of California , Berkeley , California 94720 , United States
| | - F Dean Toste
- Department of Chemistry , University of California , Berkeley , California 94720 , United States
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11
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Cantú-Reyes M, Alvarado-Beltrán I, Ballinas-Indilí R, Álvarez-Toledano C, Hernández-Rodríguez M. Stereodivergent Mannich reaction of bis(trimethylsilyl)ketene acetals with N-tert-butanesulfinyl imines by Lewis acid or Lewis base activation, a one-pot protocol to obtain chiral β-amino acids. Org Biomol Chem 2017; 15:7705-7709. [PMID: 28875215 DOI: 10.1039/c7ob01853c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report a one-pot synthesis of chiral β2,2,3-amino acids by the Mannich addition of bistrimethylsilyl ketene acetals to N-tert-butanesulfinyl imines followed by the removal of the chiral auxiliary. The synthesis and isolation of pure β-amino acid hydrochlorides were conducted under mild conditions, without strong bases and this method is operationally simple. The stereoselective reaction was promoted by two different activation methods that lead to different stereoisomers: (1) Lewis Acid (LA) catalysis with boron trifluoride diethyl etherate and (2) Lewis Base (LB) catalysis with tetrabutylammonium difluorotriphenylsilicate. The reaction presented good diastereoselectivity with LB activation and moderate to good dr with LA catalysis. The exceptions in both protocols were imines with electron donating groups in the aromatic ring.
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Affiliation(s)
- Margarita Cantú-Reyes
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Del. Coyoacán, 04510, Cd. Mx., Mexico.
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12
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Chen X, Li Y, Zhao J, Zheng B, Lu Q, Ren X. Stereoselective Mannich Reaction of N
-(tert
-Butylsulfinyl)imines with 3-Fluorooxindoles and Fluoroacetamides. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700353] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Xiangyu Chen
- Department of Chemistry and Chemical Engineering; Shanghai University of Engineering Science; 333 Longteng Road Shanghai 201620 People's Republic of China
| | - Ya Li
- Department of Chemistry and Chemical Engineering; Shanghai University of Engineering Science; 333 Longteng Road Shanghai 201620 People's Republic of China
| | - Jianbo Zhao
- Department of Chemistry and Chemical Engineering; Shanghai University of Engineering Science; 333 Longteng Road Shanghai 201620 People's Republic of China
| | - Buquan Zheng
- Department of Chemistry and Chemical Engineering; Shanghai University of Engineering Science; 333 Longteng Road Shanghai 201620 People's Republic of China
| | - Qi Lu
- Department of Chemistry and Chemical Engineering; Shanghai University of Engineering Science; 333 Longteng Road Shanghai 201620 People's Republic of China
| | - Xinfeng Ren
- Department of Chemistry and Chemical Engineering; Shanghai University of Engineering Science; 333 Longteng Road Shanghai 201620 People's Republic of China
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13
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Zeng XL, Deng ZY, Liu C, Zhao G, Lin JH, Zheng X, Xiao JC. Nucleophilic monofluoroalkylation with fluorinated phosphonium salt toward carbonyl and imine compounds. J Fluor Chem 2017. [DOI: 10.1016/j.jfluchem.2016.11.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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14
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Si CM, Shao LP, Mao ZY, Zhou W, Wei BG. An efficient approach to trans-4-hydroxy-5-substituted 2-pyrrolidinones through a stereoselective tandem Barbier process: divergent syntheses of (3R,4S)-statines, (+)-preussin and (−)-hapalosin. Org Biomol Chem 2017; 15:649-661. [DOI: 10.1039/c6ob02523d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Natural products of (+)-preussin and (−)-hapalosin have been asymmetrically synthesized through the stereoselective tandem Barbier process.
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Affiliation(s)
- Chang-Mei Si
- Department of Natural Products Chemistry
- School of Pharmacy
- Fudan University
- Shanghai
- China
| | - Lu-Ping Shao
- Department of Natural Products Chemistry
- School of Pharmacy
- Fudan University
- Shanghai
- China
| | - Zhuo-Ya Mao
- Department of Natural Products Chemistry
- School of Pharmacy
- Fudan University
- Shanghai
- China
| | - Wen Zhou
- Department of Natural Products Chemistry
- School of Pharmacy
- Fudan University
- Shanghai
- China
| | - Bang-Guo Wei
- Department of Natural Products Chemistry
- School of Pharmacy
- Fudan University
- Shanghai
- China
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15
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Czaban-Jóźwiak J, Loska R, Mąkosza M. Synthesis of α-Fluoro-α-nitroarylacetates via Vicarious Nucleophilic Substitution of Hydrogen. J Org Chem 2016; 81:11751-11757. [PMID: 27783510 DOI: 10.1021/acs.joc.6b02219] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Readily available ethyl chlorofluoroacetate, when treated with a strong base, forms an α-chloro-α-fluorocarbanion that adds to nitroarenes at a position ortho or para to the nitro group with formation of anionic σH adducts. Subsequent base-induced β-elimination of HCl proceeds selectively to give nitrobenzylic α-fluorocarbanions and, upon protonation, ethyl α-fluoro-α-nitroarylacetates.
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Affiliation(s)
- Justyna Czaban-Jóźwiak
- Institute of Organic Chemistry, Polish Academy of Sciences , Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Rafał Loska
- Institute of Organic Chemistry, Polish Academy of Sciences , Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Mieczysław Mąkosza
- Institute of Organic Chemistry, Polish Academy of Sciences , Kasprzaka 44/52, 01-224 Warsaw, Poland
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16
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Li Y, Li X, Shang H, Chen X, Ren X. Diastereoselective Mannich Reactions Using Fluorinated Ketones: Synthesis of Stereogenic Carbon-Fluorine Units. J Org Chem 2016; 81:9858-9866. [PMID: 27704830 DOI: 10.1021/acs.joc.6b01979] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
A diastereoselective Mannich reaction of simple α-fluoro ketones with N-tert-butylsulfinylimines was developed. This method provides a concise route to a variety of structurally diverse α-fluoro-β-amino ketones containing fluorinated stereogenic carbon centers; good yields and high diastereoselectivities were achieved. This method uses readily accessible starting materials and has a broad substrate scope: cyclic and linear α-fluoro ketones and fluoromethyl ketones are all suitable substrates.
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Affiliation(s)
- Ya Li
- Department of Chemistry and Chemical Engineering, Shanghai University of Engineering Science , 333 Longteng Road, Shanghai, 201620, China
| | - Xiang Li
- Department of Chemistry and Chemical Engineering, Shanghai University of Engineering Science , 333 Longteng Road, Shanghai, 201620, China
| | - Huaqi Shang
- Department of Chemistry and Chemical Engineering, Shanghai University of Engineering Science , 333 Longteng Road, Shanghai, 201620, China
| | - Xiangyu Chen
- Department of Chemistry and Chemical Engineering, Shanghai University of Engineering Science , 333 Longteng Road, Shanghai, 201620, China
| | - Xinfeng Ren
- Department of Chemistry and Chemical Engineering, Shanghai University of Engineering Science , 333 Longteng Road, Shanghai, 201620, China
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