Propose multistep synthetic route for the following transformations. You can use whatever chemical reagent to facilitate the reactions. Detailed reaction condition of solvent or temperature is not needed, but the key reagents must be provided (such as "NaOH", "HCI", NABH4", etc.) (16 pt) (1) HO HO, EtO OEt & Br (2) *H3N .N' CO2 *H3N & *H3N .CO2 Ala-Leu