Using COC(=O)CC(O)(c1ccccc1)c1ccc2nc(N)n(S(=O)(=O)C(C)C)c2c1 to produce COC(=O)C=C(c1ccccc1)c1ccc2nc(N)n(S(=O)(=O)C(C)C)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.