Using O=C1CCC(=O)N1Br, Cc1nn(C)c(C)c1Oc1cc(Cl)cc(C#N)c1 to produce Cc1nn(C)c(CBr)c1Oc1cc(Cl)cc(C#N)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.