Using CCOC(=O)C[C@@H]1CCc2cc(OCCc3nc(-c4cccc(N)c4)oc3C)ccc21, CC(=O)Cl to produce CCOC(=O)C[C@@H]1CCc2cc(OCCc3nc(-c4cccc(NC(C)=O)c4)oc3C)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.