Using O=C([O-])[O-], CCOC(=O)c1cnc(/C=C(\C)c2cc3c(cc2C)C(C)(C)CCC3(C)C)[nH]1 to produce CCOC(=O)c1cnc(/C=C(\C)c2cc3c(cc2C)C(C)(C)CCC3(C)C)n1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.