Using CCCCCCCCCc1ccc(C=O)cc1, CCCCC[P+](c1ccccc1)(c1ccccc1)c1ccccc1 to produce CCCCC=Cc1ccc(CCCCCCCCC)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.