Using O=C(OCc1ccccc1)C1CCCc2[nH]c3ccccc3c21 to produce O=C(OCc1ccccc1)C1CCCc2c1c1ccccc1n2C(=O)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.