Using CNC, COc1ccc2c(=O)n(C)c(C(=O)O)c(-c3cccc(F)c3)c2c1 to produce COc1ccc2c(=O)n(C)c(C(=O)N(C)C)c(-c3cccc(F)c3)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.