Using CCOC(=O)c1ccc(CP(=O)(OCC)OCC)cc1, CCOCC1(C)CCCSc2cc(C=O)ccc21 to produce CCOCC1(C)CCCSc2cc(/C=C/c3ccc(C(=O)O)cc3)ccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.