Using Cc1nn(-c2ccccc2)c(C)c1N, O=C1c2ccccc2C(=O)N1CCBr to produce Cc1nn(-c2ccccc2)c(C)c1NCCN1C(=O)c2ccccc2C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.