Evaluation of the Biosynthetic Proposal for the Synthesis of Marineosins A and B

The first synthetic efforts toward marineosins A and B, novel spiroaminals from a Streptomyces actinomycete, are described by evaluation of the proposed biosynthesis. The hypothesized biosynthetic C1−C25 Diels−Alder substrate was prepared in 8 steps in 5.1% overall yield; however, the proposed biomi...

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Veröffentlicht in:Organic letters 2010-03, Vol.12 (5), p.1048-1051
Hauptverfasser: Aldrich, Leslie N, Dawson, Eric S, Lindsley, Craig W
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Sprache:eng
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Zusammenfassung:The first synthetic efforts toward marineosins A and B, novel spiroaminals from a Streptomyces actinomycete, are described by evaluation of the proposed biosynthesis. The hypothesized biosynthetic C1−C25 Diels−Alder substrate was prepared in 8 steps in 5.1% overall yield; however, the proposed biomimetic inverse-electron-demand hetero-Diels−Alder reaction failed to deliver the marineosin core. Molecular mechanics supports this observation.
ISSN:1523-7060
1523-7052
DOI:10.1021/ol100034p