Using CC(=O)c1ccc2c(c1)Cc1ccccc1-2, O=[Cr](=O)([O-])O[Cr](=O)(=O)[O-] to produce CC(=O)C1=CC=C2C(=Cc3ccccc32)C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.