Using CC(C)(C)OC(=O)N1CC=C(c2cc(F)c(F)c3ccoc23)C(C)(C)C1 to produce CC1(C)CNCC=C1c1cc(F)c(F)c2ccoc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.