Using COc1nn(-c2ccc(NC(=O)CCCCl)c(C)c2)c(=O)o1 to produce COc1nn(-c2ccc(N3CCCC3=O)c(C)c2)c(=O)o1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.