Using CC(C)(C)OC(=O)N1CCc2c(ncn2C(=O)OC(C)(C)C)C1c1cccc(Br)c1 to produce CC(C)(C)OC(=O)N1CCc2[nH]cnc2C1c1cccc(Br)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.