Using C1COCCN1, COC(=O)c1ccc2ccn(CCOc3ccccc3C=O)c2c1 to produce COC(=O)c1ccc2ccn(CCOc3ccccc3CN3CCOCC3)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.