Using CCOC(C)=O, COc1c(Cc2ccccc2)cc(C(=O)O)c2ccccc12 to produce CCOC(=O)c1cc(Cc2ccccc2)c(O)c2ccccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.