Using O=C1NC(=O)c2ccccc21, CN1CC(CCCl)Oc2ncccc2C1=O to produce CN1CC(CCN2C(=O)c3ccccc3C2=O)Oc2ncccc2C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.