Using O=C(NCCCO)c1cc(Br)c2cc[nH]c2c1, OC[C@@H]1CCCN1 to produce O=C(NCCCN1CCC[C@H]1CO)c1cc(Br)c2cc[nH]c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.