Using N#CBr, N#Cc1c(-c2ccc(Cl)c(Cl)c2)[nH]c(Cl)c1Cl to produce N#Cc1c(Cl)c(Cl)n(C#N)c1-c1ccc(Cl)c(Cl)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.