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Synthesis of the AB Subunit of Angelmicin B Through a Tandem Alkoxy Radical Fragmentation-etherification Sequence

Overview
Journal Org Lett
Specialties Biochemistry
Chemistry
Date 2008 Mar 8
PMID 18324819
Citations 6
Authors
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Abstract

The synthesis of the tricyclic enone 2, corresponding to the AB subunit of the novel tyrosine kinase inhibitor angelmicin B, is described. The strategy centers on an intramolecular Diels-Alder (IMDA) reaction on triene 4 to provide the complex decalin 3, which is elaborated to 2. Other key steps are the formation of the THF ring in 2 through a tandem alkoxy radical fragmentation-etherification on the lactol derived from 3, and the synthesis of 4 via a ring-closing ene-yne metathesis (RCEYM).

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