Using CC(C)(C)[O-], COC(=O)c1cc(Cl)c(OC2CCC(=O)CC2)cc1F to produce C=C1CCC(Oc2cc(F)c(C(=O)OC)cc2Cl)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.