Synthesis of a 6-azaspiro[4.5]decane related to halichlorine and the pinnaic acids
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Add time:09/28/2019 Source:infona.pl
Sulfone 15, derived from d-glutamic acid, and aldehyde 23, made by diastereoselective alkylation, were linked and elaborated into enamine sulfone 33. This underwent 5-exo radical cyclization to 34, which was desulfonylated to (-)-35, a compound that represents the spirobicyclic core of halichlorine.
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