Zheng X, Guo X, Wang H, Zhou PP, Chen X. Total Synthesis of (±)-Rubriflordilactone A.
J Am Chem Soc 2024;
146:7198-7203. [PMID:
38456819 DOI:
10.1021/jacs.4c01033]
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Abstract
A new and efficient synthesis of rubriflordilactone A has been realized. The key transformations include the following: (1) an intramolecular Prins cyclization to establish the seven-membered ring containing two contiguous stereocenters; (2) a Mukaiyama hydration/oxa-Michael cascade to construct the B-ring; and (3) an unprecedented stereocontrol intermolecular o-QM type [4 + 2]-cycloaddition to rapidly assemble core structure of rubriflordilactone A.
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