Using C1CCOC1, COC(=O)C1(C=O)CCc2cc(C3CCCCC3)c(Cl)cc21 to produce COC(=O)C1(C(=O)O)CCc2cc(C3CCCCC3)c(Cl)cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.