Using CC1(C)S[C@@H]2C(NC(=O)CN)C(=O)N2C1c1nnn[nH]1, O=C(Cl)c1ccccc1 to produce CC1(C)S[C@@H]2C(NC(=O)CNC(=O)c3ccccc3)C(=O)N2C1c1nnn[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.