Using CCCC[Sn](C=COCC)(CCCC)CCCC, COC(=O)c1cc(I)c(C(F)(F)F)cc1NC(C)=O to produce C=C(OCC)c1cc(C(=O)OC)c(NC(C)=O)cc1C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.