Using CCC1=C2c3[nH]c4ccc(OC)cc4c3CCN2C(=O)CC1 to produce CCC1CCC(=O)N2CCc3c([nH]c4ccc(OC)cc34)C12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.