Using CCCCOC(=O)c1n[nH]c(Cc2ccccc2)n1, O=C([O-])[O-] to produce CCCCOC(=O)c1nc(Cc2ccccc2)n(C)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.