Using C=CC(=O)OC(C)(C)C, Oc1ccc(C(=C2C3CCCC2CCC3)c2ccc(Br)cc2)cc1 to produce CC(C)(C)OC(=O)/C=C/c1ccc(C(=C2C3CCCC2CCC3)c2ccc(O)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.