Using CCCCSc1ccccc1-c1ccc2c(c1)C=C(C(=O)OC)CCS2(=O)=O to produce CCCCSc1ccccc1-c1ccc2c(c1)C=C(C(=O)O)CCS2(=O)=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.