Using NCCC1CCOCC1, COc1cc(C=O)ccc1Oc1ccc(C(N)=O)nn1 to produce COc1cc(CNCCC2CCOCC2)ccc1Oc1ccc(C(N)=O)nn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.