Using O=C1Nc2cc(Br)ccc2C1=O, O=C1C=c2ccccc2=N1 to produce O=C1Nc2ccccc2/C1=C1\C(=O)Nc2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.