Using c1c[nH]cn1, CCCc1nc2ccc(CBr)cc2c(=O)[nH]1 to produce CCCc1nc2ccc(Cn3ccnc3)cc2c(=O)[nH]1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.