Using C=C[Sn](CCCC)(CCCC)CCCC, CCOC(=O)C1=Cc2cc(I)c(OC)cc2OC1C(F)(F)F to produce C=Cc1cc2c(cc1OC)OC(C(F)(F)F)C(C(=O)OCC)=C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.