Using COCc1c(F)c(F)c(COC(=O)C(=C(C)C)c2cnc(C(C)(C)C)nc2)c(F)c1F to produce C=C(C)C(C(=O)OCc1c(F)c(F)c(COC)c(F)c1F)c1cnc(C(C)(C)C)nc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.