Using Oc1nnc(-c2ccccc2)c2ccccc12, O=C(CBr)NCc1ccccc1 to produce O=C(Cn1nc(-c2ccccc2)c2ccccc2c1=O)NCc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.