Using CC1(C)C(=O)N(Br)C(=O)N1Br, CCOC(=O)c1cn(C(C)(C)C)c2nc(N3CCCC3)ccc2c1=O to produce CCOC(=O)c1cn(C(C)(C)C)c2nc(N3CCCC3)c(Br)cc2c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.