(Solved): Propose an efficient synthesis for the given transformation. This transformation can be perfor ...

Propose an efficient synthesis for the given transformation. $$?$$ This transformation can be performed with some reagent or combination of the reagents listed below. Give the necessary reagent(s) in the correct order, as a string of letters (without spaces or punctuation, such as "EBF"). If there is more than one correct solution, provide just one answer.