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Manna A, Chatterjee S, Chakraborty I, Bhaumik T. Enantiodivergent syntheses of (+)- and (-)-1-(2,6-dimethylphenoxy)propan-2-ol: A way to access (+)- and (-)-mexiletine from D-(+)-mannitol. Carbohydr Res 2020; 487:107892. [PMID: 31901892 DOI: 10.1016/j.carres.2019.107892] [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: 08/10/2019] [Revised: 11/30/2019] [Accepted: 12/10/2019] [Indexed: 10/25/2022]
Abstract
Chiron approach was used to acquire optically pure (R)- and (S)-1-(2,6-dimethylphenoxy)propan-2-ol, immediate precursors of (S)- and (R)-mexiletines, respectively. Two different routes were followed from a D-mannitol-derived optically pure common precursor to get the enantiomeric alcohols separately. Comparison of their specific rotation values with the corresponding literature values as well as exact mirror-image relationship between their CD curves proved their high enantiopurity. These alcohols were then transformed to the corresponding amine-drugs in an efficient one-step process instead of two steps described in the literature.
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Affiliation(s)
- Avrajit Manna
- Department of Chemistry, Jadavpur University, Jadavpur, Kolkata, 700032, West Bengal, India
| | - Sandip Chatterjee
- Department of Chemistry, Jadavpur University, Jadavpur, Kolkata, 700032, West Bengal, India
| | - Ipsita Chakraborty
- Department of Chemistry, Jadavpur University, Jadavpur, Kolkata, 700032, West Bengal, India
| | - Tanurima Bhaumik
- Department of Chemistry, Jadavpur University, Jadavpur, Kolkata, 700032, West Bengal, India.
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2
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Mondal S, Sureshan KM. Carbasugar Synthesis via Vinylogous Ketal: Total Syntheses of (+)-MK7607, (-)-MK7607, (-)-Gabosine A, (-)-Epoxydine B, (-)-Epoxydine C, epi-(+)-Gabosine E and epi-(+)-MK7607. J Org Chem 2016; 81:11635-11645. [PMID: 27808513 DOI: 10.1021/acs.joc.6b01876] [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
Carbasugars, the carbocyclic analogues of sugars, constitute an important class of natural products with more than 140 members known and have attracted much attention due to their diverse biological activities like anticancer, antibacterial, herbicidal, and various enzyme inhibitory activities. As many carbohydrates are involved in various cellular signaling pathways, there is great interest in synthesis and biological exploration of carbasugars. Herein, we have developed a methodology to install an α,β-unsaturated aldehyde functionality on different inositols and derivatives by vinylogous elimination of the O-protecting group under mildly acidic condition. We have illustrated the versatility and utility of our methodology by the total syntheses of seven carbasugars viz. (-)-MK7607, (-)-gabosine A, (-)-epoxydine B, (-)-epoxydine C, (+)-MK7607, 1-epi-(+)-MK7607 and 1-epi-(+)-gabosine E.
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Affiliation(s)
- Soumik Mondal
- Indian Institute of Science Education and Research , Thiruvananthapuram, Kerala 695016, India
| | - Kana M Sureshan
- Indian Institute of Science Education and Research , Thiruvananthapuram, Kerala 695016, India
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3
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Trapero A, Egido-Gabás M, Bujons J, Llebaria A. Synthesis and evaluation of hydroxymethylaminocyclitols as glycosidase inhibitors. J Org Chem 2015; 80:3512-29. [PMID: 25750987 DOI: 10.1021/acs.joc.5b00133] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Four series of C7N aminocyclitol analogues of glucose were synthesized by stereocontrolled epoxide opening of hydroxyl protected forms of the cyclohexane epoxides cyclophellitol and 1,6-epi-cyclophellitol. The resulting hydroxymethyl substituted aminocyclitols were tested as glycosidase inhibitors. Cyclitols having an amino group in an α configuration at a position equivalent to the anomeric in the sugar were found to be low micromolar inhibitors of the α-glucosidase from baker's yeast with Ki's near to 2 μM. On the other hand, N-octyl aminocyclitols having the nitrogen substituents in an α or β configuration were found to be good inhibitors of recombinant β-glucocerebrosidase with Ki values between 8.3 and 17 μM, and also inhibited lysosomal β-glucosidase activity in live cells at low-micromolar concentrations. A computational docking study suggests a differential binding among the different series of β-glucocerebrosidase inhibitors. In agreement with the experimental results, the binding poses obtained indicate that the presence of an alkyl lipid substituent in the inhibitor mimicking one of the lipid chains in the substrate is critical for potency. In contrast, the matching of hydroxymethyl substituents in the aminocyclitols and the parent glucosylceramide does not seem to be strictly necessary for potent inhibition, indicating the risk of simplifying structural analogies in sugar mimetic design.
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Affiliation(s)
- Ana Trapero
- †Laboratory of Medicinal Chemistry, Department of Biomedicinal Chemistry, Institut de Química Avançada de Catalunya (IQAC-CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Meritxell Egido-Gabás
- ‡Department of Biomedicinal Chemistry, Institut de Química Avançada de Catalunya (IQAC-CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Jordi Bujons
- §Department of Biological Chemistry and Molecular Modeling, Institut de Química Avançada de Catalunya (IQAC-CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Amadeu Llebaria
- †Laboratory of Medicinal Chemistry, Department of Biomedicinal Chemistry, Institut de Química Avançada de Catalunya (IQAC-CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain
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4
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Li KY, Jiang J, Witte MD, Kallemeijn WW, van den Elst H, Wong CS, Chander SD, Hoogendoorn S, Beenakker TJM, Codée JDC, Aerts JMFG, van der Marel GA, Overkleeft HS. Synthesis of Cyclophellitol, Cyclophellitol Aziridine, and Their Tagged Derivatives. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402588] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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5
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Stereochemical Differentiation in the Simmons-Smith Reaction for Cyclopropanated Glucopyranose Derivatives as Molecular Probes for Glycosidases. Biosci Biotechnol Biochem 2014; 75:1380-2. [DOI: 10.1271/bbb.110120] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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6
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Mondal S, Sureshan KM. Total syntheses and structural validation of lincitol A, lincitol B, uvacalol I, uvacalol J, and uvacalol K. Org Biomol Chem 2014; 12:7279-89. [DOI: 10.1039/c4ob01329h] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
First total syntheses of lincitol A, lincitol B, uvacalol I, uvacalol J and uvacalol K were achieved in racemic form, validating their structure from a common intermediate, which was synthesized in six steps from low-cost and extensively available myo-inositol.
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Affiliation(s)
- Soumik Mondal
- School of Chemistry
- Indian Institute of Science Education and Research
- Thiruvananthapuram 695016, India
| | - Kana M. Sureshan
- School of Chemistry
- Indian Institute of Science Education and Research
- Thiruvananthapuram 695016, India
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7
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Kramer R, Brückner R. Stereocontrolled Synthesis of a Cn-Cn+6Building Block for the Unnatural Enantiomers of Important Polyol,Polyene Antibiotics from an Epoxy Alcohol by a Reduction/Conjugate Addition/Hydroxylation Sequence. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300182] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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8
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Mondal S, Prathap A, Sureshan KM. Vinylogy in Orthoester Hydrolysis: Total Syntheses of Cyclophellitol, Valienamine, Gabosine K, Valienone, Gabosine G, 1-epi-Streptol, Streptol, and Uvamalol A. J Org Chem 2013; 78:7690-700. [DOI: 10.1021/jo401272j] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Soumik Mondal
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Thiruvananthapuram, Kerala 695016, India
| | - Annamalai Prathap
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Thiruvananthapuram, Kerala 695016, India
| | - Kana M. Sureshan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Thiruvananthapuram, Kerala 695016, India
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A novel chemo-multienzymatic synthesis of bioactive cyclophellitol and epi-cyclophellitol in both enantiopure forms. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.10.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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10
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Martel F, Estrine B, Plantier-Royon R, Hoffmann N, Portella C. Development of Agriculture Left-Overs: Fine Organic Chemicals from Wheat Hemicellulose-Derived Pentoses. Top Curr Chem (Cham) 2010; 294:79-115. [DOI: 10.1007/128_2010_54] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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11
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Takamura H, Murata T, Asai T, Kadota I, Uemura D. Stereoselective synthesis and absolute configuration of the C1'-C25' fragment of symbiodinolide. J Org Chem 2009; 74:6658-66. [PMID: 19655754 DOI: 10.1021/jo901162v] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Stereoselective synthesis of the C1'-C25' fragment of symbiodinolide, which was obtained as a degraded product from symbiodinolide by alkaline hydrolysis, has been accomplished. The synthetic route features Kotsuki coupling and Julia-Kocienski olefination in the introduction of the side chains. This enantio- and stereoselective synthesis has established the absolute configuration of the C1'-C25' fragment.
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Affiliation(s)
- Hiroyoshi Takamura
- Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan.
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Sullivan B, Carrera I, Drouin M, Hudlicky T. Symmetry-based design for the chemoenzymatic synthesis of oseltamivir (Tamiflu) from ethyl benzoate. Angew Chem Int Ed Engl 2009; 48:4229-31. [PMID: 19425033 DOI: 10.1002/anie.200901345] [Citation(s) in RCA: 79] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
A short chemoenzymatic formal synthesis of oseltamivir from ethyl benzoate has been achieved. The key steps involve a toluene dioxygenase-mediated dihydroxylation, hetero-Diels-Alder cycloaddition, and generation of C4 acetamido functionality. The formal synthesis of oseltamivir is achieved in ten steps and incorporates a unique translocation of the olefin with concomitant elimination of the C2 hydroxy group (see scheme).
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Affiliation(s)
- Bradford Sullivan
- Department of Chemistry and Centre for Biotechnology, Brock University, 500 Glenridge Avenue, St. Catharines, Ontario, L2S 3A1, Canada
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Sullivan B, Carrera I, Drouin M, Hudlicky T. Symmetry-Based Design for the Chemoenzymatic Synthesis of Oseltamivir (Tamiflu) from Ethyl Benzoate. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200901345] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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14
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Hudlicky T, Reed JW. Applications of biotransformations and biocatalysis to complexity generation in organic synthesis. Chem Soc Rev 2009; 38:3117-32. [DOI: 10.1039/b901172m] [Citation(s) in RCA: 186] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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Serrano P, Egido-Gabás M, Llebaria A, Delgado A. An unexpected access to 5-epi-cyclophellitol: a new cyclitol member. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.tetasy.2007.08.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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17
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Herndon JW. The chemistry of the carbon–transition metal double and triple bond: Annual survey covering the year 2005. Coord Chem Rev 2007. [DOI: 10.1016/j.ccr.2006.11.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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18
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Madsen R. Synthetic Strategies for Converting Carbohydrates into Carbocycles by the Use of Olefin Metathesis. European J Org Chem 2007. [DOI: 10.1002/ejoc.200600614] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Robert Madsen
- Center for Sustainable and Green Chemistry, Department of Chemistry, Building 201, Technical University of Denmark, 2800 Lyngby, Denmark, Fax: +45‐4593‐3968
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Enantiodivergent synthesis of muricatacin related lactones from d-xylose based on the latent symmetry concept: preparation of two novel cytotoxic (+)- and (−)-muricatacin 7-oxa analogs. Tetrahedron 2006. [DOI: 10.1016/j.tet.2006.09.054] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Hans S, Mootoo DR. A de novo approach to C-branched inositols: synthesis of a myo-inositol precursor for C-linked glycosyl phosphatidylinositols. Carbohydr Res 2006; 341:1322-32. [PMID: 16698000 DOI: 10.1016/j.carres.2006.04.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2006] [Revised: 04/16/2006] [Accepted: 04/18/2006] [Indexed: 10/24/2022]
Abstract
C-Linked glycosyl inositols are valuable structure-activity probes because of their greater hydrolytic stability and different conformational behavior compared with their parent O-glycosides. Simple C-branched inositols are synthetic precursors to these and other groups of inositol mimetics. Herein is described a de novo synthesis of C-branched inositols that contain a versatile ethenyl side chain for elaboration into more complex appendages. The approach centers on a stereoselective oxocarbenium ion-allylsilane cyclization and provides C-branched inositols with different stereochemical motifs. The synthesis of C-ethenyl-di-O-isopropylidene-myo-, neo-, epi-, and allo-inositols is discussed.
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Affiliation(s)
- Sunej Hans
- Department of Chemistry, Hunter College, 695 Park Avenue, New York, NY 10021, USA
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21
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Abstract
[reaction: see text] A new synthesis of (+)-cyclophellitol, a potent beta-glucosidase inhibitor, has been completed in nine steps from D-xylose. The key transformations involve a zinc-mediated fragmentation of benzyl-protected methyl 5-deoxy-5-iodo-xylofuranoside followed by a highly diastereoselective indium-mediated coupling with ethyl 4-bromocrotonate. Subsequent ring-closing olefin metathesis, ester reduction, olefin epoxidation, and deprotection then afford the natural product. This constitutes the shortest synthesis of (+)-cyclophellitol reported to date.
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Affiliation(s)
- Flemming Gundorph Hansen
- Center for Sustainable and Green Chemistry, Building 201, Department of Chemistry, Technical University of Denmark, DK-2800 Lyngby, Denmark
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