New cyclic acetals related to Ambergris and their olfactory evaluation

Abstract
Hemisyntheses of cyclic acetals (11-18) were performed using (-)-polygodial and (+)-confertifolin as chiral starting materials. The acetals obtained were evaluated for their odoriferous properties.
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Keywords
hemisyntheses, drimane sesquiterpenes, cyclic acetals, Ambergris, odoriferous properties, PODOCARPACEAE, CHEMISTRY
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