Using C=C[Sn](CCCC)(CCCC)CCCC, COC(=O)c1nc(-c2ccc(Cl)c(F)c2)c(F)c(NC(=O)OC(C)(C)C)c1Cl to produce C=Cc1c(C(=O)OC)nc(-c2ccc(Cl)c(F)c2)c(F)c1NC(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.