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Cercosporin-Photocatalyzed [4+1]- and [4+2]-Annulations of Azoalkenes Under Mild Conditions
Published on: July 17, 2020
The oxidative rearrangements in bacterial aromatic polyketide biosynthesis
Fangwen Jiao1,2,3, Shuai Li1, Hongzhi Qiao2,4
1Department of Pathogen Biology, School of Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China.
This review explores how bacterial enzymes use redox chemistry to create complex aromatic polyketides. It highlights unique oxidative rearrangements crucial for natural product biosynthesis and drug development.
Area of Science:
- Biochemistry
- Natural Product Biosynthesis
- Enzymology
Background:
- Bacterial aromatic polyketides are vital natural products with clinical applications.
- Oxidative rearrangements are key steps in polyketide biosynthesis, generating structural diversity and bioactivity.
Purpose of the Study:
- To elucidate the role of natural enzymes in bacterial aromatic polyketide biosynthesis.
- To detail how redox chemistry facilitates carbon skeleton formation and rearrangements.
Main Methods:
- Review of literature on oxidative rearrangements in bacterial polyketide synthesis.
- Discussion of enzymes like flavin-dependent monooxygenases, ketoreductases, dioxygenases, CYP450s, and NmrA-like proteins.
- Analysis of structural characteristics and catalytic mechanisms of key enzymes.
Main Results:
- Summarized unique examples of Baeyer-Villiger and Favorskii-type rearrangements.
- Highlighted innovative carbon skeleton rearrangements and intermolecular dimerization.
- Presented structural and mechanistic insights into redox enzyme catalysis.
Conclusions:
- Enzymatic redox chemistry is central to bacterial aromatic polyketide scaffold diversification.
- Understanding these processes offers biocatalysts for synthesizing complex natural molecules.
- This review enhances comprehension of enzymatic oxidative rearrangements in natural product synthesis.
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