Using NNC1=Nc2ccc(Br)cc2C(c2ccccc2)=NC1, CCCCC(=O)Cl to produce CCCCc1nnc2n1-c1ccc(Br)cc1C(c1ccccc1)=NC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.