Using CCCCOc1cccc(S)c1, CCOC(=O)C(C(=O)OCC)C(=O)OCC to produce CCCCOc1ccc2c(O)c(C(=O)OCC)c(=O)sc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.