Using CCOC(=O)C(=O)c1ccc(SC)cc1, c1ccc([P+](CCC2CCCCC2)(c2ccccc2)c2ccccc2)cc1 to produce CCOC(=O)/C(=C/CC1CCCCC1)c1ccc(SC)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.