Using CCOC(=O)CC(=O)c1ccc2c(c1)OCO2, Nc1nc(-c2ccc(Cl)cc2)n[nH]1 to produce O=c1cc(-c2ccc3c(c2)OCO3)[nH]c2nc(-c3ccc(Cl)cc3)nn12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.