Using COc1ccc(C(O)(c2ccc3nccc(/C=C/c4ccccc4)c3c2)c2nccs2)cc1 to produce COc1ccc(C(c2ccc3nccc(/C=C/c4ccccc4)c3c2)c2nccs2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.