Using O=C(O)CCl, CCCCc1nc(N)[nH]c(=O)c1Cc1ccc(-c2ccccc2C(=O)OC)cc1 to produce CCCCc1nc(NC(=O)CCl)[nH]c(=O)c1Cc1ccc(-c2ccccc2C(=O)OC)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.