Using CC(=O)c1ccc2c(c1)C=CC(=O)CO2, ClC[P+](c1ccccc1)(c1ccccc1)c1ccccc1 to produce CC(=O)c1ccc2c(c1)C=CC(=CCl)CO2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.