Using BrCc1ccccc1, CCOC(=O)c1cc2cccnc2[nH]c1=O to produce CCOC(=O)c1cc2cccnc2n(Cc2ccccc2)c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.