Using [Zr+4], Brc1ccc(C2CC3=CC=CCC3C2)cc1 to produce Brc1ccc(C2CC3CC=CC=C3C2[Zr+2]C2C3=CC=CCC3CC2c2ccc(Br)cc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.