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Show K, Gonnade RG, Kumar P. First Total Synthesis of the Proposed Structure of Pandangolide 1. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800675] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Krishanu Show
- Organic Chemistry Division; CSIR-National Chemical Laboratory (CSIR-NCL); Dr. Homi Bhabha Road -411008 Pune India
| | - Rajesh G. Gonnade
- Centre for Material Characterization; CSIR-National Chemical Laboratory (CSIR-NCL); Dr. Homi Bhabha Road -411008 Pune India
| | - Pradeep Kumar
- Organic Chemistry Division; CSIR-National Chemical Laboratory (CSIR-NCL); Dr. Homi Bhabha Road -411008 Pune India
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Show K, Kumar P. Synthesis of Ophiocerins A, B and C, Botryolide E, Decarestrictine O, Stagonolide C and 9-epi-Stagonolide C Employing Chiral Hexane-1,2,3,5-tetraol Derivatives as Building Blocks. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600625] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Krishanu Show
- Division of Organic Chemistry; CSIR - National Chemical Laboratory; 411008 Pune India
| | - Pradeep Kumar
- Division of Organic Chemistry; CSIR - National Chemical Laboratory; 411008 Pune India
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Gao Y, Shan Q, Liu J, Wang L, Du Y. The first convergent total synthesis of penarolide sulfate A2, a novel α-glucosidase inhibitor. Org Biomol Chem 2014; 12:2071-9. [DOI: 10.1039/c3ob42364f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Venkanna A, Sreedhar E, Siva B, Babu KS, Prasad KR, Rao JM. Studies directed towards the total synthesis of koshikalide: stereoselective synthesis of the macrocyclic core. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.tetasy.2013.07.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Parenty A, Moreau X, Niel G, Campagne JM. Update 1 of: Macrolactonizations in the Total Synthesis of Natural Products. Chem Rev 2013; 113:PR1-40. [DOI: 10.1021/cr300129n] [Citation(s) in RCA: 148] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- A. Parenty
- Institut de Chimie des Substances
Naturelles, Avenue de la Terrasse, F-91198 Gif sur Yvette, France
| | - X. Moreau
- Institut de Chimie des Substances
Naturelles, Avenue de la Terrasse, F-91198 Gif sur Yvette, France
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles-Saint-Quentin-en-Yvelines, 45 Avenue des Etats-Unis, 78035 Versailles Cedex, France
| | - Gilles Niel
- Institut Charles Gerhardt, UMR5253, Ecole Nationale Supérieure de Chimie, 8 rue de l’Ecole Normale, F-34296 Montpellier, France
| | - J.-M. Campagne
- Institut de Chimie des Substances
Naturelles, Avenue de la Terrasse, F-91198 Gif sur Yvette, France
- Institut Charles Gerhardt, UMR5253, Ecole Nationale Supérieure de Chimie, 8 rue de l’Ecole Normale, F-34296 Montpellier, France
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Kumar P, Dubey A, Harbindu A. Enantio- and diastereocontrolled conversion of chiral epoxides to trans-cyclopropane carboxylates: application to the synthesis of cascarillic acid, grenadamide and L-(-)-CCG-II. Org Biomol Chem 2012; 10:6987-94. [PMID: 22832742 DOI: 10.1039/c2ob25622c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient high yielding improved method for the enantio- and diastereoselective cyclopropanation of chiral epoxides using triethylphosphonoacetate and base (Wadsworth-Emmons cyclopropanation) is reported. The utility of this protocol is illustrated by concise and practical synthesis of cascarillic acid, grenadamide and L-(-)-CCG-II, a cyclopropane containing natural products.
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Affiliation(s)
- Pradeep Kumar
- Division of Organic Chemistry, National Chemical Laboratory, Pune 411008, India.
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Kumar P, Pandey M, Gupta P, Dhavale DD. Organocatalytic stereoselective synthesis of passifloricin A. Org Biomol Chem 2012; 10:1820-5. [PMID: 22246108 DOI: 10.1039/c2ob06711k] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The enantioselective synthesis of passifloricin A has been achieved in high diastereomeric excess. The 1,3-polyol moiety was constructed by iterative proline-catalyzed sequential α-aminoxylation and Horner-Wadsworth-Emmons (HWE) olefination of aldehydes while the synthesis of lactone moiety was achieved by ring-closing metathesis (RCM).
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Affiliation(s)
- Pradeep Kumar
- Division of Organic Chemistry, National Chemical Laboratory (CSIR), Pune, 411 008, India
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Neubauer T, Kammerer-Pentier C, Bach T. Total synthesis of (+)-bretonin B: access to the (E,Z,E)-triene core by a late-stage Peterson elimination of a convergently assembled silyl ether. Chem Commun (Camb) 2012; 48:11629-31. [DOI: 10.1039/c2cc36604e] [Citation(s) in RCA: 11] [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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Pujari SA, Gowrisankar P, Kaliappan KP. A Shimizu Non-Aldol Approach to the Formal Total Synthesis of Palmerolide A. Chem Asian J 2011; 6:3137-51. [DOI: 10.1002/asia.201100429] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2011] [Indexed: 11/07/2022]
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11
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Prasad KR, Penchalaiah K. Enantiodivergent total synthesis of microcarpalide from l-tartaric acid. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.03.102] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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Burghart-Stoll H, Kapferer T, Brückner R. Asymmetric Dihydroxylations of Enynes with a Trisubstituted C═C Bond. An Unprecedented Route to γ-Lactone Building Blocks with a Quaternary Stereocenter. Org Lett 2011; 13:1016-9. [DOI: 10.1021/ol103061g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Heike Burghart-Stoll
- Institut für Organische Chemie und Biochemie, Albert-Ludwigs-Universität, Albertstr. 21, 79104 Freiburg im Breisgau, Germany, and Bayer CropScience AG, Alfred-Nobel-Str. 50, 40789 Monheim, Germany
| | - Tobias Kapferer
- Institut für Organische Chemie und Biochemie, Albert-Ludwigs-Universität, Albertstr. 21, 79104 Freiburg im Breisgau, Germany, and Bayer CropScience AG, Alfred-Nobel-Str. 50, 40789 Monheim, Germany
| | - Reinhard Brückner
- Institut für Organische Chemie und Biochemie, Albert-Ludwigs-Universität, Albertstr. 21, 79104 Freiburg im Breisgau, Germany, and Bayer CropScience AG, Alfred-Nobel-Str. 50, 40789 Monheim, Germany
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Yan X, Zhang SM, Wu Y, Gao P. Synthesis and configuration of the nonadecenetriol isolated from seeds of Persea americana. Org Biomol Chem 2011; 9:6797-806. [DOI: 10.1039/c1ob05898c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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14
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Kumar P, Dubey A, Puranik VG. A general and concise asymmetric synthesis of sphingosine, safingol and phytosphingosines via tethered aminohydroxylation. Org Biomol Chem 2010; 8:5074-86. [PMID: 20844791 DOI: 10.1039/c0ob00117a] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/03/2024]
Abstract
A novel, practical and efficient enantioselective synthesis of sphingoid bases, l-threo-[2S,3S]-sphinganine (safingol), l-threo-[2S,3S]-sphingosine, l-arabino-[2R,3S,4R] and l-xylo-[2R,3S,4S]-C(18)-phytosphingosine is described. The synthetic strategy features the Sharpless kinetic resolution and tethered aminohydroxylation (TA) as the key steps.
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Affiliation(s)
- Pradeep Kumar
- Division of Organic Chemistry, National Chemical Laboratory, Pune 411008, India.
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Kumar P, Pandey M, Gupta P, Naidu SV, Dhavale DD. Enantio- and Diastereocontrolled Total Synthesis of (+)-Strictifolione. European J Org Chem 2010. [DOI: 10.1002/ejoc.201001221] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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16
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Kumar P, Pandey M, Gupta P, Dhavale DD. An organocatalytic route to the synthesis of lactone moiety of compactin and mevinolin. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.08.093] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Yin B, Ye DN, Yu KH, Liu LX. A general and simple diastereoselective reduction by L-Selectride: efficient synthesis of protected (4S,5S)-dihydroxy amides. Molecules 2010; 15:2771-81. [PMID: 20428078 PMCID: PMC6257261 DOI: 10.3390/molecules15042771] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2009] [Revised: 03/24/2010] [Accepted: 04/12/2010] [Indexed: 11/30/2022] Open
Abstract
A general approach to (4S,5S)-4-benzyloxy-5-hydroxy-N-(4-methoxybenzyl) amides 10 based on a diastereoselective reduction of (5S,6RS)-6-alkyl-5-benzyloxy-6-hydroxy-2-piperidinones 6 and their tautomeric ring-opened keto amides 7 is described. The reduction with l-Selectride at -20 °C to room temperature afforded the products 10 in excellent yields and moderate to high syn-diastereoselectivities.
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Affiliation(s)
| | | | | | - Liang-Xian Liu
- Author to whom correspondence should be addressed; E-Mail: ; Tel: +86-797-8397630; Fax: +86-797-8393670
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18
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First stereoselective total synthesis and anticancer activity of new amide alkaloids of roots of pepper. Bioorg Med Chem Lett 2009; 19:5915-8. [PMID: 19733069 DOI: 10.1016/j.bmcl.2009.08.056] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2009] [Revised: 08/12/2009] [Accepted: 08/17/2009] [Indexed: 11/22/2022]
Abstract
The first stereoselective total synthesis of new natural amide alkaloids 1-3 have been achieved from commercially available starting materials. Wittig olefination, Sharpless asymmetric dihydroxylation, epoxidation, a trans regioselective opening of 2,3-epoxy alcohol, Horner-Wadsworth-Emmons (HWE) olefination and amide coupling are the key steps. The amide alkaloids 1-3 are evaluated for their anticancer activity against colon (HT-29), breast (MCF-7) and lung (A-549) human cancer cell lines for the first time.
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Dubey A, Kumar P. A tethered aminohydroxylation route to l-arabino-[2R,3S,4R] and l-xylo-[2R,3S,4S]-C18-phytosphingosines. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.02.173] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Bräse S, Encinas A, Keck J, Nising CF. Chemistry and Biology of Mycotoxins and Related Fungal Metabolites. Chem Rev 2009; 109:3903-90. [DOI: 10.1021/cr050001f] [Citation(s) in RCA: 411] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Stefan Bräse
- Institut für Organische Chemie,Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, D-76131 Karlsruhe, Germany
| | - Arantxa Encinas
- Institut für Organische Chemie,Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, D-76131 Karlsruhe, Germany
| | - Julia Keck
- Institut für Organische Chemie,Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, D-76131 Karlsruhe, Germany
| | - Carl F. Nising
- Institut für Organische Chemie,Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, D-76131 Karlsruhe, Germany
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Yadav J, Somaiah R, Ravindar K, Chandraiah L. Stereoselective total synthesis of (+)-mueggelone, a novel inhibitor of fish development. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.02.022] [Citation(s) in RCA: 12] [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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Matsuda M, Yamazaki T, Fuhshuku KI, Sugai T. First total synthesis of modiolide A, based on the whole-cell yeast-catalyzed asymmetric reduction of a propargyl ketone. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.06.038] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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26
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Naidu SV, Gupta P, Kumar P. Enantioselective syntheses of (−)-pinellic acid, α- and β-dimorphecolic acid. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.05.047] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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27
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Naidu SV, Kumar P. A simple and efficient approach to 1,3-aminoalcohols: application to the synthesis of (+)-negamycin. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.03.169] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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31
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Fürstner A, Nagano T, Müller C, Seidel G, Müller O. Total Synthesis and Evaluation of the Actin-Binding Properties of Microcarpalide and a Focused Library of Analogues. Chemistry 2007; 13:1452-62. [PMID: 17124714 DOI: 10.1002/chem.200601370] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A comparative investigation shows that hydroxylated 10-membered lactones modeled around the fungal metabolites microcarpalide (1) and pinolidoxin (2) are endowed with selective actin-binding properties. Although less potent than the marine natural product latrunculin A, which represents the standard in the field, nonenolides of this type are significantly less toxic and accommodate substantial structural editing. Most notable is the fact that even an intramolecular transesterification with formation of a hydroxylated butanolide skeleton does not annihilate their microfilament disrupting capacity. This finding calls for a reinvestigation of the biological profile of other fungal metabolites that embody a similar motif. Microcarpalide (1) serving as the calibration point for this comparative study was prepared by total synthesis based on ring-closing metathesis (RCM) as the key step. The chosen route favorably compares to previous approaches to this target and provides further support for the notion that the (E,Z)-configuration of a medium-sized cycloalkene can be controlled by proper choice of the catalyst as previously outlined by our group. 9-epi-Microcarpalide 26 and furanone 27 as representative examples of the "natural productlike" compounds investigated herein have been characterized by crystal structure analysis.
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Affiliation(s)
- Alois Fürstner
- Max-Planck-Institut für Kohlenforschung, 45470 Mülheim/Ruhr, Germany.
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32
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Prasad KR, Penchalaiah K, Choudhary A, Anbarasan P. Stereoselective synthesis of (−)-microcarpalide. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2006.11.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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33
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Kumar Pandey S, Kumar P. Efficient Total Synthesis of (–)-(3S,6R)-3,6-Dihydroxy-10-methylundecanoic Acid. European J Org Chem 2007. [DOI: 10.1002/ejoc.200600690] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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34
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Kandula SRV, Kumar P. An asymmetric aminohydroxylation route to cis-2,6-disubstituted piperidine-3-ol: application to the synthesis of (−)-deoxocassine. Tetrahedron 2006. [DOI: 10.1016/j.tet.2006.08.014] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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35
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Pandey SK, Kumar P. Enantioselective synthesis of (2R,3R)- and (2S,3S)-β-hydroxyornithine. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.04.055] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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36
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37
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Chen J, Li Y, Cao XP. First stereoselective synthesis of serinol-derived malyngamides and their 1′-epi-isomers. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.tetasy.2006.02.027] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Kumar P, Gupta P, Naidu SV. A Simple and Efficient Approach to 1,3-Polyols: Application to the Synthesis of Cryptocarya Diacetate. Chemistry 2006; 12:1397-402. [PMID: 16308881 DOI: 10.1002/chem.200501029] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
A highly enantio- and stereoselective synthetic strategy for both syn- and anti-1,3-polyols has been developed. The sequence involves iterative Jacobsen's hydrolytic kinetic resolution (HKR), diastereoselective iodine-induced electrophilic cyclization, and ring-closing metathesis (RCM). This protocol has subsequently been utilized for the synthesis of cryptocarya diacetate, a natural product with broad range of biological activity.
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Affiliation(s)
- Pradeep Kumar
- Division of Organic Chemistry: Technology, National Chemical Laboratory, Pune 411008, India.
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Gupta P, Naidu SV, Kumar P. Enantioselective synthesis of tarchonanthuslactone via iterative hydrolytic kinetic resolution. Tetrahedron Lett 2005. [DOI: 10.1016/j.tetlet.2005.07.056] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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42
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43
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