Using O=C(Cl)C(=O)Cl, CCOC(=O)c1cnc2c(c1O)CC(OC(=O)OCc1ccccc1)CC2 to produce CCOC(=O)c1cnc2c(c1Cl)CC(OC(=O)OCc1ccccc1)CC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.