ven 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

${?}^{{?}^{?}}{?}^{{?}_{?}}(H_3{O}^{+}{)}^0$;$2$

$H_3{O}^{+}$

G

MeMgBr;$2H_3{O}^{+}$

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

K

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

B

C

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

$H$

MCPBA

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

L

DMP or PCC

DMP or PCC

D

$Mg$

$H_2,$ Lindlar's cat.

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

$HBr($xs$),$ heat

o

EtBr

E

$H_3{O}^{+}$

F

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

M

M

$SOC{l}_2,$ pyridine

N

$1$

J

$HBr($xs$),$ heat

$B{H}_3*THF$; $2)H_2{O}_2,$