Using COC(=O)c1cc(Cl)c(NC(C)=O)cc1O, O=C1OCCC1Br to produce COC(=O)c1cc(Cl)c(NC(C)=O)cc1OC1CCOC1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.