Using COc1ccc(CCN2C(=O)N(N)CC2c2ccc(C)c(C)c2)cc1, CC(=O)Cl to produce COc1ccc(CCN2C(=O)N(NC(C)=O)CC2c2ccc(C)c(C)c2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.