Using O=C(O)C1(c2ccc3c(c2)OCO3)CC1, Nc1ccc2[nH]c3c(c2c1)CCCC3 to produce O=C(Nc1ccc2[nH]c3c(c2c1)CCCC3)C1(c2ccc3c(c2)OCO3)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.