Using CCCCCCCCCCCCC1=C(O)C(=O)c2c(Cl)cccc2C1=O, C1CCOC1 to produce CCCCCCCCCCCCC1=C(OC(C)=O)C(=O)c2c(Cl)cccc2C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.