Asymmetric Total Synthesis of Naphthospironone A

Angew Chem Int Ed Engl. 2023 May 22;62(22):e202303229. doi: 10.1002/anie.202303229. Epub 2023 Apr 19.

Abstract

Naphthospironone A, a polyhydroxy cagelike bioactive natural product, was synthesised for the first time in this study. The spiro[bicyclo[3.2.1]octane-pyran] core was constructed by an acid-promoted epoxide-opening lactonisation and a base-induced intramolecular aldol-type cyclisation.

Keywords: Aldol Cyclization; Caged Structure; Naphthoquinone; Natural Products; Total Synthesis.