Using O=C(NC1CCNCC1)c1ccccc1, ClCc1ccc2c(c1)OCO2 to produce O=C(NC1CCN(Cc2ccc3c(c2)OCO3)CC1)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.