Using C=CCOC(=O)CCc1c(C)c2c(c(C)c1OCOC)C(C)(C)CC(=O)O2 to produce C=CCOC(=O)CCc1c(C)c2c(c(C)c1O)C(C)(C)CC(=O)O2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.