Chemoenzymatic Total Synthesis and Structural Diversification of Tylactone-Based Macrolide Antibiotics through Late-Stage Polyketide Assembly, Tailoring, and C—H Functionalization
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- Andrew N. Lowell
- Life Sciences Institute, ‡Department of Medicinal Chemistry, §Department of Chemistry, and ∥Department of Microbiology & Immunology, University of Michigan, Ann Arbor, Michigan 48109, United States
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- Matthew D. DeMars
- Life Sciences Institute, ‡Department of Medicinal Chemistry, §Department of Chemistry, and ∥Department of Microbiology & Immunology, University of Michigan, Ann Arbor, Michigan 48109, United States
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- Samuel T. Slocum
- Life Sciences Institute, ‡Department of Medicinal Chemistry, §Department of Chemistry, and ∥Department of Microbiology & Immunology, University of Michigan, Ann Arbor, Michigan 48109, United States
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- Fengan Yu
- Life Sciences Institute, ‡Department of Medicinal Chemistry, §Department of Chemistry, and ∥Department of Microbiology & Immunology, University of Michigan, Ann Arbor, Michigan 48109, United States
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- Krithika Anand
- Life Sciences Institute, ‡Department of Medicinal Chemistry, §Department of Chemistry, and ∥Department of Microbiology & Immunology, University of Michigan, Ann Arbor, Michigan 48109, United States
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- Joseph A. Chemler
- Life Sciences Institute, ‡Department of Medicinal Chemistry, §Department of Chemistry, and ∥Department of Microbiology & Immunology, University of Michigan, Ann Arbor, Michigan 48109, United States
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- Nisha Korakavi
- Life Sciences Institute, ‡Department of Medicinal Chemistry, §Department of Chemistry, and ∥Department of Microbiology & Immunology, University of Michigan, Ann Arbor, Michigan 48109, United States
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- Jennifer K. Priessnitz
- Life Sciences Institute, ‡Department of Medicinal Chemistry, §Department of Chemistry, and ∥Department of Microbiology & Immunology, University of Michigan, Ann Arbor, Michigan 48109, United States
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- Sung Ryeol Park
- Life Sciences Institute, ‡Department of Medicinal Chemistry, §Department of Chemistry, and ∥Department of Microbiology & Immunology, University of Michigan, Ann Arbor, Michigan 48109, United States
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- Aaron A. Koch
- Life Sciences Institute, ‡Department of Medicinal Chemistry, §Department of Chemistry, and ∥Department of Microbiology & Immunology, University of Michigan, Ann Arbor, Michigan 48109, United States
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- Pamela J. Schultz
- Life Sciences Institute, ‡Department of Medicinal Chemistry, §Department of Chemistry, and ∥Department of Microbiology & Immunology, University of Michigan, Ann Arbor, Michigan 48109, United States
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- David H. Sherman
- Life Sciences Institute, ‡Department of Medicinal Chemistry, §Department of Chemistry, and ∥Department of Microbiology & Immunology, University of Michigan, Ann Arbor, Michigan 48109, United States
書誌事項
- 公開日
- 2017-06-05
- DOI
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- 10.1021/jacs.7b02875
- 公開者
- American Chemical Society (ACS)
この論文をさがす
説明
Polyketide synthases (PKSs) represent a powerful catalytic platform capable of effecting multiple carbon-carbon bond forming reactions and oxidation state adjustments. We explored the functionality of two terminal PKS modules that produce the 16-membered tylosin macrocycle, using them as biocatalysts in the chemoenzymatic synthesis of tylactone and its subsequent elaboration to complete the first total synthesis of the juvenimicin, M-4365, and rosamicin classes of macrolide antibiotics via late-stage diversification. Synthetic chemistry was employed to generate the tylactone hexaketide chain elongation intermediate that was accepted by the juvenimicin (Juv) ketosynthase of the penultimate JuvEIV PKS module. The hexaketide is processed through two complete modules (JuvEIV and JuvEV) in vitro, which catalyze elongation and functionalization of two ketide units followed by cyclization of the resulting octaketide into tylactone. After macrolactonization, a combination of in vivo glycosylation, selective in vitro cytochrome P450-mediated oxidation, and chemical oxidation was used to complete the scalable construction of a series of macrolide natural products in as few as 15 linear steps (21 total) with an overall yield of 4.6%.
収録刊行物
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- Journal of the American Chemical Society
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Journal of the American Chemical Society 139 (23), 7913-7920, 2017-06-05
American Chemical Society (ACS)