Using COC(=O)c1cn2c(CNCC(=O)OC(C)(C)C)cnc2c(Cl)c1Nc1ccc(Br)cc1Cl to produce CC(C)(C)OC(=O)CNCc1cnc2c(Cl)c(Nc3ccc(Br)cc3Cl)c(C(=O)O)cn12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.