Using C=C[Mg]Br, CON(C)C(=O)C(CC1CCOCC1)c1ccc(SC)c(F)c1 to produce C=CC(=O)C(CC1CCOCC1)c1ccc(SC)c(F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.