Using CCc1c(C(=O)NNC(=O)OC(C)(C)C)nn(-c2ccc(Cl)cc2Cl)c1-c1ccc(Br)cc1 to produce CCc1c(C(=O)NN)nn(-c2ccc(Cl)cc2Cl)c1-c1ccc(Br)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.