Using CCOC(=O)CBr, COC(=O)CC(=O)c1ccc(-n2ccnc2)cc1 to produce O=C(O)CCC(=O)c1ccc(-n2ccnc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.