Using Cn1nc(-c2ccccn2)cc1N, Cc1cc(Br)ccc1C=O to produce Cc1cc(Br)ccc1C=C1C(=N)N(C)N=C1c1ccccn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.