Abstract

The total synthesis of heliannuol C and E from a common intermediate are described. Key steps in the synthesis include a regioselective aromatic Claisen rearrangement to install the (1-vinyl)-4-methyl-3-pentenyl substituent and regioselective biomimetic 7- endo and 6- exo phenol epoxide cyclizations to form the cyclic ether moieties.

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