Abstract

The first total synthesis of (-)-hosieine A was accomplished and features an unprecedented nitroso-ene cyclization to construct the 2-azabicyclo[3.2.1]octane ring system. Phosphine-enabled stereoselective bromohydrination provided interesting mechanistic insights into the anti-Markovnikov process. Also noteworthy is the retention of stereochemistry at C9 in the facile radical debromination initiated by Et3 B/air.

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