Using O=C1CCC2(CC1)OCCO2, CCOc1ccc(-c2cccc(F)c2F)c(F)c1F to produce CCOc1ccc(-c2ccc(C3(O)CCC4(CC3)OCCO4)c(F)c2F)c(F)c1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.