Using NCCCN1CCOCC1, COc1ncccc1-c1cc2cc(C(=O)O)ccc2[nH]1 to produce COc1ncccc1-c1cc2cc(C(=O)NCCCN3CCOCC3)ccc2[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.