Using OB(O)c1ccc(Cl)cc1Cl, CCOC(=O)c1cnc2cc(CNC(=O)OC(C)(C)C)c(Br)cn12 to produce CCOC(=O)c1cnc2cc(CNC(=O)OC(C)(C)C)c(-c3ccc(Cl)cc3Cl)cn12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.