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.

A

NaH

${}_{H_3{O}^{+}}^O$;$2)$

F

MeMgBr $2)$

$H_3{O}^{+}$

$Na,N{H}_3($I$)$

$,$ L

DMP or PCC

DMP or PCC

dilute $H_{2}S{O}_4$

B

C

G

H

MCPBA

$(RC{O}_{3}H)$

M

N

$SOC{l}_2,$ pyridine

E

$H_2.$ Lindlar's cat.

EtMgBr;$2$

$HBr(xs),$ heat

K

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