Using CC(=O)OC(C)=O, Nc1nc2ccc(Br)cc2n1-c1ccccn1 to produce CC(=O)Nc1nc2ccc(Br)cc2n1-c1ccccn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.