Using Cc1cccc(C=O)c1C, O=C(O)CC[P+](c1ccccc1)(c1ccccc1)c1ccccc1 to produce Cc1cccc(/C=C/CC(=O)O)c1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.