Using COC(=O)CCN1CCOCC1, Nc1ccc2oc(-c3ccccc3)nc2c1 to produce O=C(CCN1CCOCC1)Nc1ccc2oc(-c3ccccc3)nc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.