Using C=CCN1C2CCC1CC(=C(c1ccsc1)c1cccc(OC)c1)C2 to produce C=CCN1C2CCC1CC(=C(c1ccsc1)c1cccc(O)c1)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.