Using O=C(N[C@@H]1CN[C@@H]2Cc3c[nH]c4cccc(c34)[C@H]2C1)OCc1ccccc1, CCCI to produce CCCN1C[C@@H](NC(=O)OCc2ccccc2)C[C@@H]2c3cccc4[nH]cc(c34)C[C@H]21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.