Using N=C(Nc1ccc(Br)cc1)c1c(Cl)cccc1Cl, COC(=O)C(C)(C)C(=O)CBr to produce COC(=O)C(C)(C)c1cn(-c2ccc(Br)cc2)c(-c2c(Cl)cccc2Cl)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.