An efficient and practical totalsynthesis of aquayamycin has been accomplished. The highly oxidized and stereochemically complex tetracyclic ring system was constructed using three key reactions: 1) highly diastereoselective 1,2‐addition of C‐glycosyl naphthyllithium to a cyclic ketone, 2) indium‐mediated site‐selective allylation‐rearrangement sequence of naphthoquinone, and 3) diastereoselective