Using Oc1nc(-c2ccccc2)cs1, COC(=O)/C=C(/OC)c1ccccc1CBr to produce COC(=O)/C=C(/OC)c1ccccc1COc1nc(-c2ccccc2)cs1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.