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Lin Z, Kaniraj JP, Holzheimer M, Nigou J, Gilleron M, Hekelaar J, Minnaard AJ. Asymmetric Total Synthesis and Structural Revision of DAT 2, an Antigenic Glycolipid from Mycobacterium tuberculosis. Angew Chem Int Ed Engl 2024; 63:e202318582. [PMID: 38456226 DOI: 10.1002/anie.202318582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 03/04/2024] [Accepted: 03/07/2024] [Indexed: 03/09/2024]
Abstract
DAT2 is a member of the diacyl trehalose family (DAT) of antigenic glycolipids located in the mycomembrane of Mycobacterium tuberculosis (Mtb). Recently it was shown that the molecular structure of DAT2 had been incorrectly assigned, but the correct structure remained elusive. Herein, the correct molecular structure of DAT2 and its methyl-branched acyl substituent mycolipanolic acid is determined. For this, four different stereoisomers of mycolipanolic acid were prepared in a stereoselective and unified manner, and incorporated into DAT2. A rigorous comparison of the four isomers to the DAT isolated from Mtb H37Rv by NMR, HPLC, GC, and mass spectrometry allowed a structural revision of mycolipanolic acid and DAT2. Activation of the macrophage inducible Ca2+-dependent lectin receptor (Mincle) with all four stereoisomers shows that the natural stereochemistry of mycolipanolic acid / DAT2 provides the strongest activation, which indicates its high antigenicity and potential application in serodiagnostics and vaccine adjuvants.
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Affiliation(s)
- Zonghao Lin
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands
| | - Jeya Prathap Kaniraj
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands
| | - Mira Holzheimer
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands
| | - Jérôme Nigou
- Institut de Pharmacologie et de Biologie Structurale, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, F-31077, Toulouse, France
| | - Martine Gilleron
- Institut de Pharmacologie et de Biologie Structurale, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, F-31077, Toulouse, France
| | - Johan Hekelaar
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands
| | - Adriaan J Minnaard
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands
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Rodríguez-Berríos RR, Isbel SR, Bugarin A. Epoxide-Based Synthetic Approaches toward Polypropionates and Related Bioactive Natural Products. Int J Mol Sci 2023; 24:6195. [PMID: 37047173 PMCID: PMC10094535 DOI: 10.3390/ijms24076195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/16/2023] [Accepted: 03/23/2023] [Indexed: 03/29/2023] Open
Abstract
Polypropionate units are a common structural feature of many of the natural products in polyketides, some of which have shown a broad range of antimicrobial and therapeutic potential. Polypropionates are composed of a carbon skeleton with alternating methyl and hydroxy groups with a specific configuration. Different approaches have been developed for the synthesis of polypropionates and herein we include, for the first time, all of the epoxide-based methodologies that have been reported over the years by several research groups such as Kishi, Katsuki, Marashall, Miyashita, Prieto, Sarabia, Jung, McDonald, etc. Several syntheses of polypropionate fragments and natural products that employed epoxides as key intermediates have been described and summarized in this review. These synthetic approaches involve enatio- and diastereoselective synthesis of epoxides (epoxy-alcohols, epoxy-amides, and epoxy-esters) and their regioselective cleavage with carbon and/or hydride nucleophiles. In addition, we included a description of the isolation and biological activities of the polypropionates and related natural products that have been synthetized using epoxide-based approaches. In conclusion, the epoxide-based methodologies are a non-aldol alternative approach for the construction of polypropionate.
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Affiliation(s)
- Raúl R. Rodríguez-Berríos
- Department of Chemistry, University of Puerto Rico, Rio Piedras Campus, P.O. Box 23346, San Juan 00931-3346, Puerto Rico;
| | - Stephen R. Isbel
- Department of Chemistry & Physics, Florida Gulf Coast University, 10501 FGCU Boulevard South, Fort Myers, FL 33965, USA
| | - Alejandro Bugarin
- Department of Chemistry & Physics, Florida Gulf Coast University, 10501 FGCU Boulevard South, Fort Myers, FL 33965, USA
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Tadiparthi K, Anand P, Sakirolla R, Gupta TP, Jadhav KA, Kishore Das S, Singh Yadav J. Desymmetrisation of meso-2,4-Dimethyl-8-Oxabicyclo[3.2.1]-Oct-6-Ene-3-Ol and its Application in Natural Product Syntheses. CHEM REC 2021; 22:e202100286. [PMID: 34894063 DOI: 10.1002/tcr.202100286] [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: 11/01/2021] [Revised: 11/24/2021] [Accepted: 11/24/2021] [Indexed: 11/12/2022]
Abstract
The compounds containing chiral centers and different functional groups serve as magnificent building blocks for the preparation of various natural products that are having immense biological activity. "Dimethyl-8-oxa-bicyclo[3.2.1]oct-6-en-3-ol" is one of the wonderful synthons to construct multiple stereo centers at a time during the asymmetric synthesis. In this account, we discuss our research efforts toward the synthesis of various simple and complex natural products from the past three decades (1995-2020) by using dimethyl-8-oxa-bicyclo[3.2.1]oct-6-en-3-ol as a synthon. Moreover, the synthetic utility of this starting material was investigated and well demonstrated. Further, we executed the desymmetrization of dimethyl-8-oxa-bicyclo[3.2.1]oct-6-en-3-ol by hydroboration to get different chiral centers. After obtaining the stereocenters, we could manage either the fragment, formal or total synthesis of natural products, by simple protection and deprotection sequence followed by C-C bond formation steps.
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Affiliation(s)
- Krishnaji Tadiparthi
- Department of Chemistry, CHRIST (Deemed to be University), Hosur Road, Bangalore, 560029, India.,Natural Product Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
| | - Pragya Anand
- Department of Chemistry, CHRIST (Deemed to be University), Hosur Road, Bangalore, 560029, India
| | - Raghavendra Sakirolla
- Department of Chemistry, Central University of Karnataka, Gulbarga, Karnataka, 585367, India.,Natural Product Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
| | - T Prakash Gupta
- School of Science, Indrashil University, Kadi, Mehsana, Gujarat, 382740, India
| | - Krishna A Jadhav
- School of Science, Indrashil University, Kadi, Mehsana, Gujarat, 382740, India
| | - Sukant Kishore Das
- School of Science, Indrashil University, Kadi, Mehsana, Gujarat, 382740, India
| | - Jhillu Singh Yadav
- Natural Product Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India.,School of Science, Indrashil University, Kadi, Mehsana, Gujarat, 382740, India
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Srinivasu K, Nagaiah K, Yadav JS. Stereoselective Total Synthesis of (‐)‐Ebelactone A. ChemistrySelect 2020. [DOI: 10.1002/slct.201904949] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Khandregula Srinivasu
- CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
- CSIR-Indian Institute of Chemical Technology An Associate Institution of University of Hyderabad Hyderabad 500046 India
| | - Kommu Nagaiah
- CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
| | - Jhillu S. Yadav
- CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
- CSIR-Indian Institute of Chemical Technology An Associate Institution of University of Hyderabad Hyderabad 500046 India
- School of Science, Indrashil University Kadi, Mehsana, Gujarat 382740 India
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Kumar GC, Satyanarayana V, Muralikrishna K, Yadav JS. Studies towards the Synthesis of Portentol. ChemistrySelect 2018. [DOI: 10.1002/slct.201801798] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Vavilapalli Satyanarayana
- Center for Semiochemicals; CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana; 500076
| | - Katta Muralikrishna
- Center for Semiochemicals; CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana; 500076
| | - Jhillu Singh Yadav
- Center for Semiochemicals; CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana; 500076
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Satyanarayana V, Chaithanya Kumar G, Muralikrishna K, Singh Yadav J. Stereoselective synthesis of C12–C21 common fragment of thermolides 1–5. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.06.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Satyanarayana V, Kumar AS, Muralikrishna K, Kumar GC, Kumar R S, Kumar CS, Yadav JS. Studies towards the Synthesis of Lepranthin. ChemistrySelect 2018. [DOI: 10.1002/slct.201702982] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
| | - Alleni Suman Kumar
- Center for Semiochemicals; CSIR- Indian Institute of Chemical Technology; Hyderabad− 500007 India
| | - Katta Muralikrishna
- Center for Semiochemicals; CSIR- Indian Institute of Chemical Technology; Hyderabad− 500007 India
| | | | - Sudheer Kumar R
- Center for Semiochemicals; CSIR- Indian Institute of Chemical Technology; Hyderabad− 500007 India
| | | | - Jhillu S. Yadav
- Center for Semiochemicals; CSIR- Indian Institute of Chemical Technology; Hyderabad− 500007 India
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Satyanarayana V, Muralikrishna K, Kumar GC, Kumar AS, Babu NJ, Yadav JS. Studies towards the Synthesis of Thermolide-6′. ChemistrySelect 2018. [DOI: 10.1002/slct.201702958] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Vavilapalli Satyanarayana
- Center for Semiochemicals, Indian Institute of Chemical Technology; CSIR- Indian Institute of Chemical Technology; Hyderabad− 500007 India
| | - Katta Muralikrishna
- Center for Semiochemicals, Indian Institute of Chemical Technology; CSIR- Indian Institute of Chemical Technology; Hyderabad− 500007 India
| | - Gavireddy Chaithanya Kumar
- Center for Semiochemicals, Indian Institute of Chemical Technology; CSIR- Indian Institute of Chemical Technology; Hyderabad− 500007 India
| | - Alleni Suman Kumar
- Center for Semiochemicals, Indian Institute of Chemical Technology; CSIR- Indian Institute of Chemical Technology; Hyderabad− 500007 India
| | - Nanubolu Jagadeesh Babu
- Laboratory of X-ray crystallography, Indian Institute of Chemical Technology; CSIR- Indian Institute of Chemical Technology; Hyderabad− 500007 India
| | - Jhillu Singh Yadav
- Center for Semiochemicals, Indian Institute of Chemical Technology; CSIR- Indian Institute of Chemical Technology; Hyderabad− 500007 India
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Edwards A, Bennin T, Rubina M, Rubin M. Synthesis of 1,5-Dioxocanes via the Two-Fold C-O Bond Forming Nucleophilic 4+4-Cyclodimerization of Cycloprop-2-en-1-ylmethanols. RSC Adv 2015; 5:71849-71853. [PMID: 26594355 DOI: 10.1039/c5ra14077c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
An efficient [4+4] cyclodimerization of cyclopropenemethanols operating via a two-fold strain release-driven addition of alkoxides across the double bond of cyclopropenes was investigated. This chemo- and diastereoselective transformation provided previously unknown 2,7-dioxatricyclo[7.1.0.04,6]decane scaffolds.
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Affiliation(s)
- Andrew Edwards
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Dr., Lawrence KS 66045-7582, USA
| | - Trevor Bennin
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Dr., Lawrence KS 66045-7582, USA ; Department of Chemistry, Northland College, 1411 Ellis Avenue, Ashland, Wisconsin 54806-3999, USA
| | - Marina Rubina
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Dr., Lawrence KS 66045-7582, USA
| | - Michael Rubin
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Dr., Lawrence KS 66045-7582, USA ; Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., Stavropol 355009, Russia
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Studies directed towards the total synthesis of polyether antibiotic ionomycin: asymmetric synthesis of fragments C(24)–C(32) and C(1)–C(23). Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.08.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Mao SC, Yin GQ, Zheng KC. Effect of electric field on the microcosmic properties of cation compound containing 2,2,6,6-tetramethyl-1-piperidinyloxy and imidazole unit. J Mol Model 2014; 20:2423. [PMID: 25146429 DOI: 10.1007/s00894-014-2423-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Accepted: 08/06/2014] [Indexed: 11/29/2022]
Abstract
A theoretical study of the electric-field effect on the electronic structures and related properties of the cation compound containing 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO) and imidazole unit has been carried out, using the density functional theory (DFT) at the (U) B3LYP/6-31+G(d,p) level. The changes and regularities of geometric and electronic properties of the researched compound under electric field were revealed in detail. The results show the following: (1) Electric field has a very important effect on the orbital energy, dipole moment, natural population, and structure of the cation compound. Most of these properties are changed orderly with the increase of the electric-field intensity. (2) It is very interesting to find that in the present different electric-field intensities, the structure of cation compound after getting an electron becomes bis-radical form, that is, no mater in or out of electric-field, the cation compound will exist in a triplet state after getting an electron. (3) When getting an electron, the change of the cation structure mainly appears on the imizadole head, and when losing an electron, the change mainly appears on the TEMPO head. These theoretical results considering the electric-field effect for the cation compound help to explain the related experimental phenomena and further to direct the functional molecular design of this kind of compound.
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Affiliation(s)
- Shu-Cai Mao
- School of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China,
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Ando S, Matsunaga H, Ishizuka T. Use of a DesymmetrizedmesoMolecule as a Chiral Ligand: Development of Chiral N-Heterocyclic Carbene Ligands for Asymmetric Allylic Arylations with Grignard Reagents. ASIAN J ORG CHEM 2014. [DOI: 10.1002/ajoc.201402089] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Yadav JS, Kavita A, Raghavendra Rao KV, Mohapatra DK. Studies directed towards the total synthesis of narbonolide: stereoselective synthesis of the C1–C15 chain. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.04.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Yadav JS, Raghavendra Rao KV, Kavita A, Mohapatra DK. Stereoselective Synthesis of the C31-C41 Spirolactam Fragment of Sanglifehrin A. European J Org Chem 2013. [DOI: 10.1002/ejoc.201201684] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Yadav J, Sengupta S, Yadav NN, Narasimha Chary D, Al Ghamdi AA. Stereoselective synthesis of methyl branched chiral deoxypropionate units: a new route for synthesis of insect pheromone (−)-lardolure and (2R,4R,6R,8R) 2,4,6,8-tetramethylundecanoic acid. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.08.112] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Narayanaswamy VK, Albericio F, Coovadia YM, Kruger HG, Maguire GEM, Pillay M, Govender T. Total synthesis of a depsidomycin analogue by convergent solid-phase peptide synthesis and macrolactonization strategy for antitubercular activity. J Pept Sci 2011; 17:683-9. [PMID: 21766389 DOI: 10.1002/psc.1389] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2011] [Revised: 05/25/2011] [Accepted: 06/03/2011] [Indexed: 01/01/2023]
Abstract
Depsidomycin is a cyclic heptadepsi-peptide isolated from the cultured broth of Streptomyces lavendofoliae MI951-62F2. It exhibits significant antimicrobial and immunosuppressive activity. The total synthesis of a depsidomycin analogue in which 1,2-piperazine-3-carboxylic acid was substituted with proline is described. After several trials using different strategies, the desired depsidomycin analogue was obtained via stepwise synthesis starting by the amino acid 'head' and macrolactonization under Yamaguchi conditions. The cyclic depsipeptide was evaluated to have an minimum inhibitory concentration (MIC) of 4 µg/ml against H37RV and 16 µg/ml against MDR clinical strains of MTB (MDR-MTB), while the linear precursor 8 also had MICs of 4 and 16 µg/ml for the susceptible and resistant strains, respectively.
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