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Avula SK, Das B, Csuk R, Al-Rawahi A, Al-Harrasi A. Recent Advances in the Stereoselective Total Synthesis of Natural Pyranones Having Long Side Chains. Molecules 2020; 25:molecules25081905. [PMID: 32326105 PMCID: PMC7221952 DOI: 10.3390/molecules25081905] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 04/13/2020] [Accepted: 04/17/2020] [Indexed: 11/16/2022] Open
Abstract
Pyranone natural products have attracted great attention in recent years from chemists and biologists due to their fascinating stereoisomeric structural features and impressive bioactivities. A large number of stereoselective total syntheses of these compounds have been described in the literature. The natural pyranones with long side chains have recently received significant importance in the synthetic field. In the present article, we aim to review the modern progress of the stereoselective total syntheses of these natural pyranones containing long-chain substituents.
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Affiliation(s)
- Satya Kumar Avula
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz 616, Nizwa, Oman; (S.K.A.); (B.D.); (A.A.-R.)
| | - Biswanath Das
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz 616, Nizwa, Oman; (S.K.A.); (B.D.); (A.A.-R.)
| | - Rene Csuk
- Organic Chemistry, Martin-Luther-University Halle-Wittenberg, Kurt-Mothes-Str. 2, d-06120 Halle (Saale), Germany;
| | - Ahmed Al-Rawahi
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz 616, Nizwa, Oman; (S.K.A.); (B.D.); (A.A.-R.)
| | - Ahmed Al-Harrasi
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz 616, Nizwa, Oman; (S.K.A.); (B.D.); (A.A.-R.)
- Correspondence: , Tel.: +968-25446328
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Jin H, Li Y, Zhang Q, Lin S, Yang Z, Ding G. Enantioselective Hydrolysis of Styrene Oxide and Benzyl Glycidyl Ether by a Variant of Epoxide Hydrolase from Agromyces mediolanus. Mar Drugs 2019; 17:E367. [PMID: 31226863 PMCID: PMC6627055 DOI: 10.3390/md17060367] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 06/15/2019] [Accepted: 06/19/2019] [Indexed: 02/07/2023] Open
Abstract
Enantiopure epoxides are versatile synthetic intermediates for producing optically active pharmaceuticals. In an effort to provide more options for the preparation of enantiopure epoxides, a variant of the epoxide hydrolase (vEH-Am) gene from a marine microorganism Agromyces mediolanus was synthesized and expressed in Escherichia coli. Recombiant vEH-Am displayed a molecular weight of 43 kDa and showed high stability with a half-life of 51.1 h at 30 °C. The purified vEH-Am exhibited high enantioselectivity towards styrene oxide (SO) and benzyl glycidyl ether (BGE). The vEH-Am preferentially converted (S)-SO, leaving (R)-SO with the enantiomeric excess (ee) >99%. However, (R)-BGE was preferentially hydrolyzed by vEH-Am, resulting in (S)-BGE with >99% ee. To investigate the origin of regioselectivity, the interactions between vEH-Am and enantiomers of SO and BGE were analyzed by molecular docking simulation. In addition, it was observed that the yields of (R)-SO and (S)-BGE decreased with the increase of substrate concentrations. The yield of (R)-SO was significantly increased by adding 2% (v/v) Tween-20 or intermittent supplementation of the substrate. To our knowledge, vEH-Am displayed the highest enantioselectivity for the kinetic resolution of racemic BGE among the known EHs, suggesting promising applications of vEH-Am in the preparation of optically active BGE.
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Affiliation(s)
- Huoxi Jin
- Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China.
| | - Yan Li
- Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China.
| | - Qianwei Zhang
- Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China.
| | - Saijun Lin
- Hangzhou Institute for Food and Drug Control, Hangzhou 310019, China.
| | - Zuisu Yang
- Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China.
| | - Guofang Ding
- Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China.
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Chhetri BK, Lavoie S, Sweeney-Jones AM, Kubanek J. Recent trends in the structural revision of natural products. Nat Prod Rep 2019; 35:514-531. [PMID: 29623331 DOI: 10.1039/c8np00011e] [Citation(s) in RCA: 110] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Covering: 2012 to 2017 This article reviews recent reports on the structural revision of natural products. Through a critical assessment of the original and revised published structures, the article addresses why each structure was targeted for revision, discusses the techniques and key discrepancies that led to the proposal of the revised structure, and offers measures that may have been taken during the original structure determination to prevent error. With the revised structures in hand, weaknesses of original proposals are assessed, providing a better understanding on the logic behind structure determination.
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Affiliation(s)
- Bhuwan Khatri Chhetri
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332, USA.
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Reddy DV, Sabitha G, Yadav J. A cross-metathesis approach to the synthesis of (+)-phomopsolide B. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.05.032] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Heravi MM, Lashaki TB, Poorahmad N. Applications of Sharpless asymmetric epoxidation in total synthesis. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.tetasy.2015.03.006] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Juárez-González F, Suárez-Ortiz GA, Fragoso-Serrano M, Cerda-García-Rojas CM, Pereda-Miranda R. DFT 1H-1H coupling constants in the conformational analysis and stereoisomeric differentiation of 6-heptenyl-2H-pyran-2-ones: configurational reassignment of synargentolide A. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2015; 53:203-212. [PMID: 25353378 DOI: 10.1002/mrc.4178] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2014] [Revised: 10/05/2014] [Accepted: 10/08/2014] [Indexed: 06/04/2023]
Abstract
Density functional theory (DFT) (1) H-(1) H NMR coupling constant calculations, including solvation parameters with the polarizable continuum model B3LYP/DGDZVP basis set together with the experimental values measured by spectral simulation, were used to predict the configuration of hydroxylated 6-heptenyl-5,6-dihydro-2H-pyran-2-ones 1, 2, 4, and 7, allowing epimer differentiation. Modeling of these flexible compounds requires the inclusion of solvation models that account for stabilizing interactions derived from intramolecular and intermolecular hydrogen bonds, in contrast with peracetylated derivatives (3, 5, and 6) in which the solvation consideration can be omitted. Using this DFT NMR integrated approach as well as spectral simulation, the configurational reassignment of synargentolide A (8) was accomplished by calculations in the gas phase among four possible diastereoisomers (8-11). Calculated (3) JH,H values established its configuration as 6R-[4'S,5'S,6'S-(triacetyloxy)-2E-heptenyl]-5,6-dihydro-2H-pyran-2-one (8), in contrast with the incorrect 6R,4'R,5'R,6'R-diastereoisomer previously proposed by synthesis (12). Application of this approach increases the probability for successful enantiospecific total syntheses of flexible compounds with multiple chiral centers.
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Affiliation(s)
- Francisco Juárez-González
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Mexico City, 04510, DF, Mexico
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8
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A convenient approach to total synthesis of synargentolide-B from l-ascorbic acid and d-ribose. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.03.133] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Rajaram S, Ramesh D, Ramulu U, Prabhakar P, Venkateswarlu Y. A Stereoselective Aldol Approach for the Total Syntheses of Two 6-Alkylated 2H-Pyran-2-ones. Helv Chim Acta 2014. [DOI: 10.1002/hlca.201300139] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Sabitha G, Rao AS, Sandeep A, Yadav JS. The First Stereoselective Total Synthesis of (-)-Synrotolide. European J Org Chem 2013. [DOI: 10.1002/ejoc.201301215] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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12
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Sabitha G, Sandeep A, Rao AS, Yadav JS. The First Total Synthesis of Synparvolide C. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300913] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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13
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Sabitha G, Shankaraiah K, Yadav JS. Tandem Ring-Closing/Cross-Metathesis Approach for the Synthesis of Synargentolide B and Its Stereoisomers. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300434] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Prasad KR, Gutala P. Total Synthesis and Determination of the Absolute Configuration of 5,6-Dihydro-α-pyrone Natural Product Synargentolide B. J Org Chem 2013; 78:3313-22. [DOI: 10.1021/jo400083v] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kavirayani R. Prasad
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Phaneendra Gutala
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India
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First stereoselective total synthesis of pectinolide C and total synthesis of pectinolide A. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2012.12.039] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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17
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Singh GS, Mollet K, D’hooghe M, De Kimpe N. Epihalohydrins in Organic Synthesis. Chem Rev 2012; 113:1441-98. [DOI: 10.1021/cr3003455] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Girija S. Singh
- Chemistry Department, Faculty
of Science, University of Botswana, Private
Bag 0022, Gaborone, Botswana
| | - Karen Mollet
- Department of Sustainable Organic
Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent,
Belgium
| | - Matthias D’hooghe
- Department of Sustainable Organic
Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent,
Belgium
| | - Norbert De Kimpe
- Department of Sustainable Organic
Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent,
Belgium
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Wei C, Chen Y, Shen H, Wang S, Chen L, Zhu Q. Biocatalytic resolution of benzyl glycidyl ether and its derivates by Talaromyces flavus: effect of phenyl ring substituents on enantioselectivity. Biotechnol Lett 2012; 34:1499-503. [DOI: 10.1007/s10529-012-0927-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2012] [Accepted: 04/05/2012] [Indexed: 11/29/2022]
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Sabitha G, Reddy DV, Reddy SSS, Yadav JS, Kumar CG, Sujitha P. Total synthesis of desacetylumuravumbolide, umuravumbolide and their biological evaluation. RSC Adv 2012. [DOI: 10.1039/c2ra20830j] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Gormisky PE, White MC. Synthetic versatility in C-H oxidation: a rapid approach to differentiated diols and pyrans from simple olefins. J Am Chem Soc 2011; 133:12584-9. [PMID: 21744821 PMCID: PMC3182113 DOI: 10.1021/ja206013j] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Conventionally, C-H oxidation reactions are used to install functional groups. The use of C-H oxidation to transform simple starting materials into highly versatile intermediates, which enable rapid access to a range of complex target structures, is a new area with tremendous potential in synthesis. Herein we report a Pd(II)/sulfoxide-catalyzed allylic C-H oxidation to form anti-1,4-dioxan-2-ones from homoallylic oxygenates. These versatile building blocks are rapidly elaborated to differentiated syn-1,2-diols, stereodefined amino-polyols, and syn-pyrans, structures ubiquitous in medicinally important complex molecules found in Nature. We also demonstrate that a C-H oxidation approach to the synthesis of these motifs is orthogonal and complementary to other state-of-the-art methods.
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Affiliation(s)
- Paul E. Gormisky
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, Illinois 61801
| | - M. Christina White
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, Illinois 61801
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Das B, Balasubramanyam P, Veeranjaneyulu B, Chinna Reddy G. An Efficient Stereoselective Total Synthesis of Synargentolide A and Its Epimer. Helv Chim Acta 2011. [DOI: 10.1002/hlca.201000342] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Sabitha G, Reddy CN, Raju A, Yadav JS. Stereoselective total synthesis of the cytotoxic lactone (−)-spicigerolide. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.tetasy.2011.02.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Herndon JW. The chemistry of the carbon–transition metal double and triple bond: Annual survey covering the year 2009. Coord Chem Rev 2011. [DOI: 10.1016/j.ccr.2010.07.003] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Sabitha G, Reddy SSS, Yadav J. Total synthesis of cryptopyranmoscatone B1 from 3,4,6-tri-O-acetyl-d-glucal. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.09.085] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Kamal A, Balakrishna M, Reddy PV, Faazil S. An efficient synthesis of synargentolide A from d-mannitol. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.10.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Sabitha G, Reddy CN, Gopal P, Yadav J. Stereoselective total synthesis of (+)-anamarine via cross-metathesis protocol. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.08.077] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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