Using CC(C)(C)OC(=O)N1CC[C@@H]2CN(c3cnc(Br)c(COS(C)(=O)=O)c3)C[C@@H]21, [C-]#N to produce CC(C)(C)OC(=O)N1CC[C@@H]2CN(c3cnc(Br)c(CC#N)c3)C[C@@H]21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.