Using C=C[C@H]1CC[C@H](c2cc(F)cc(F)c2)CC1, O=C=O to produce C=C[C@H]1CC[C@H](c2cc(F)c(C(=O)O)c(F)c2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.