Using C=CC(=O)OC(C)(C)C, CCOC(=O)c1cc2c(C)cccc2[nH]1 to produce CCOC(=O)c1cc2c(C)cccc2n1CCC(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.