Using CCOC(=O)c1c[nH]c2c(c1=O)C(=O)CCC2, BrCc1ccc(Br)cc1 to produce CCOC(=O)c1cn(Cc2ccc(Br)cc2)c2c(c1=O)C(=O)CCC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.