Using CCOC(=O)CC1(CCC(Cc2ccc(C(=O)OC)cc2)C(=O)O)CC1 to produce CCOC(=O)CC1(CCC(CO)Cc2ccc(C(=O)OC)cc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.