Using CCCn1c(=O)c2[nH]c(C3CC4CCC(C3)C4(C)O)nc2n(CCC)c1=O, O=C1CC2C=CC(C1)O2 to produce CCCn1c(=O)c2nc(C3(O)CC4C=CC(C3)O4)[nH]c2n(CCC)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.