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Sharma DK, Jaglan S, Mukherjee D. Isolation and conversion of penicillic acid to 6-iodo-α-pyran-2,5-dione: A key intermediate for the synthesis of pectinolide F. SYNTHETIC COMMUN 2016. [DOI: 10.1080/00397911.2016.1164864] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Deepak K. Sharma
- AcSIR, Academy of Scientific and Innovative Research, Jammu, India
- CSIR, Indian Institute of Integrative Medicine (IIIM), IIIM/1893/2016, Jammu, India
| | - Sundeep Jaglan
- AcSIR, Academy of Scientific and Innovative Research, Jammu, India
- CSIR, Indian Institute of Integrative Medicine (IIIM), IIIM/1893/2016, Jammu, India
| | - Debaraj Mukherjee
- AcSIR, Academy of Scientific and Innovative Research, Jammu, India
- CSIR, Indian Institute of Integrative Medicine (IIIM), IIIM/1893/2016, Jammu, India
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Yadav JS, Ganganna B, Dutta P, Singarapu KK. Synthesis and determination of absolute configuration of α-pyrones isolated from Penicillium corylophilum. J Org Chem 2014; 79:10762-71. [PMID: 25337961 DOI: 10.1021/jo5015382] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The first total synthesis of (S)-6-(2,9-dihydroxynonyl)-4-hydroxy-3-methyl-2H-pyran-2-one, 4-hydroxy-3-methyl-6-((2S,4R)-2,4,11-trihydroxyundecyl)-2H-pyran-2-one, and its unnatural 2R,4R-isomer starting from commercially available 1,8-octanediol is described. The synthesis led to the revision of the proposed structural assignment of the natural product as (R)-6-(2,9-dihydroxynonyl)-4-hydroxy-3-methyl-2H-pyran-2-one. The key steps include chiral auxiliary mediated asymmetric acetate aldol reaction, dianion addition, and base mediated cyclization to form an α-pyrone ring.
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Affiliation(s)
- J S Yadav
- Academy of Scientific and Innovative Research, ‡Division of Natural Products Chemistry, CSIR-Indian Institute of Chemical Technology , Hyderabad-500007, India
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Singh Yadav J, Shiva Shankar K, Srinivas Reddy A, Subba Reddy BV. Stereoselective Total Synthesis of Oxylipins: (6S,7E,9R,10S)-6,9,10-Trihydroxyoctadec-7-enoic Acid and (6Z,8R,9R,10S)-8,9,10-Trihydroxyoctadec-6-enoic Acid. Helv Chim Acta 2014. [DOI: 10.1002/hlca.201300223] [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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Westphal R, Hahn D, Mackfeld U, Waltzer S, Beigi M, Widmann M, Vogel C, Pleiss J, Müller M, Rother D, Pohl M. Tailoring theS-Selectivity of 2-Succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexene-1-carboxylate Synthase (MenD) fromEscherichia coli. ChemCatChem 2013. [DOI: 10.1002/cctc.201300318] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Beigi M, Waltzer S, Fries A, Eggeling L, Sprenger GA, Müller M. TCA Cycle Involved Enzymes SucA and Kgd, as well as MenD: Efficient Biocatalysts for Asymmetric C–C Bond Formation. Org Lett 2013; 15:452-5. [DOI: 10.1021/ol3031186] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Maryam Beigi
- Institute of Pharmaceutical Sciences, Albert-Ludwigs-University of Freiburg, Albertstraße 25, 79104 Freiburg, Germany, Institute of Bio- and Geoscience, IBG-1: Biotechnology, Research Centre Jülich, 52425 Jülich, Germany, and Institute of Microbiology, Universität Stuttgart, Allmandring 31, 70569 Stuttgart, Germany
| | - Simon Waltzer
- Institute of Pharmaceutical Sciences, Albert-Ludwigs-University of Freiburg, Albertstraße 25, 79104 Freiburg, Germany, Institute of Bio- and Geoscience, IBG-1: Biotechnology, Research Centre Jülich, 52425 Jülich, Germany, and Institute of Microbiology, Universität Stuttgart, Allmandring 31, 70569 Stuttgart, Germany
| | - Alexander Fries
- Institute of Pharmaceutical Sciences, Albert-Ludwigs-University of Freiburg, Albertstraße 25, 79104 Freiburg, Germany, Institute of Bio- and Geoscience, IBG-1: Biotechnology, Research Centre Jülich, 52425 Jülich, Germany, and Institute of Microbiology, Universität Stuttgart, Allmandring 31, 70569 Stuttgart, Germany
| | - Lothar Eggeling
- Institute of Pharmaceutical Sciences, Albert-Ludwigs-University of Freiburg, Albertstraße 25, 79104 Freiburg, Germany, Institute of Bio- and Geoscience, IBG-1: Biotechnology, Research Centre Jülich, 52425 Jülich, Germany, and Institute of Microbiology, Universität Stuttgart, Allmandring 31, 70569 Stuttgart, Germany
| | - Georg A. Sprenger
- Institute of Pharmaceutical Sciences, Albert-Ludwigs-University of Freiburg, Albertstraße 25, 79104 Freiburg, Germany, Institute of Bio- and Geoscience, IBG-1: Biotechnology, Research Centre Jülich, 52425 Jülich, Germany, and Institute of Microbiology, Universität Stuttgart, Allmandring 31, 70569 Stuttgart, Germany
| | - Michael Müller
- Institute of Pharmaceutical Sciences, Albert-Ludwigs-University of Freiburg, Albertstraße 25, 79104 Freiburg, Germany, Institute of Bio- and Geoscience, IBG-1: Biotechnology, Research Centre Jülich, 52425 Jülich, Germany, and Institute of Microbiology, Universität Stuttgart, Allmandring 31, 70569 Stuttgart, Germany
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