Using O=C(Cl)c1ccc2nc(C3CC3)n(Cc3ccccc3Cl)c2c1, C1COCCN1 to produce O=C(c1ccc2nc(C3CC3)n(Cc3ccccc3Cl)c2c1)C1CNCCO1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.