Journal
BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY
Volume 86, Issue 8, Pages 985-997Publisher
OXFORD UNIV PRESS
DOI: 10.1093/bbb/zbac072
Keywords
agarofuran; dihydro-beta-agarofuran; total synthesis; natural product; sesquiterpene
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Funding
- Kato Memorial Bioscience Foundation
- JSPS KAKENHI
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Dihydro-beta-agarofuran (DH beta AF) sesquiterpenoids, with their pharmacologically and agriculturally important biological properties, have attracted significant attention from synthetic organic and medicinal chemists. Recent advancements in stereoselective protocols have enabled the scalable total synthesis of these compounds, leading to the synthesis of complex natural derivatives.
Dihydro-beta-agarofuran (DH beta AF) sesquiterpenoids constitute a large family of natural products characterized by a tricyclic architecture comprising trans-decalin and tetrahydrofuran rings, and oxygen functionalities on them. Their pharmacologically and agriculturally important biological properties and intriguing molecular architectures have attracted considerable attention from synthetic organic and medicinal chemists. In 2020, our group achieved a scalable total synthesis of this type of natural product, (-)-isocelorbicol, by developing a highly stereocontrolled protocol, which enabled elaboration to naturally occurring ester derivatives, celafolins B-1, B-2, and B-3. Afterward, the total syntheses of more complex DH beta AF sesquiterpenoids, (-)-euonyminol and (-)-euonymine, were reported by 2 research groups via current state-of-the-art methods. This review summarizes the total syntheses of DH beta AF natural products from 1979 to 2021.
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