Enantioselective Total Synthesis of (+)-Duocarmycin A, <i>epi</i>-(+)-Duocarmycin A, and Their Unnatural Enantiomers

Enantioselective Total Synthesis of (+)-Duocarmycin A, <i>epi</i>-(+)-Duocarmycin A, and Their Unnatural Enantiomers