As an iconic polyene natural product, dihydroxerulin (1)[1] has received considerable interest from the synthetic community (Scheme 1).[2] In addition to its intriguing biological properties as a potent noncytotoxic inhibitor of the biosynthesis of cholesterol,[1] the conjugated polyene consists of a unique combination of alkene, alkyne, and butenolide units. Therefore, it has served as a platform for developing synthetic strategies for polyene ...