Using CC(c1ccc2c(c1)C(C)(C)CCN2C)[P+](c1ccccc1)(c1ccccc1)c1ccccc1, O=Cc1ccccc1 to produce CC(=Cc1ccccc1)c1ccc2c(c1)C(C)(C)CCN2C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.