Using O=C1NC(=O)c2ccccc21, CC(C)(C)OC(=O)N1CCC[C@@H]([C@@](C)(OCCO)c2cccc(Cl)c2)C1 to produce CC(C)(C)OC(=O)N1CCC[C@@H]([C@@](C)(OCCN2C(=O)c3ccccc3C2=O)c2cccc(Cl)c2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.