Using O=C1CCC(=O)N1Br, COc1cc(Nc2nc(N)n(-c3ccc(C#N)cc3)n2)cc(OC)c1C to produce COc1cc(Nc2nc(N)n(-c3ccc(C#N)cc3)n2)c(Br)c(OC)c1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.