Using O=C(O)c1cc(NC(=O)c2cc(-c3ccccn3)c(Cl)cc2Cl)n(-c2ccccc2)n1, CC(C)(O)CN to produce CC(C)(O)CNC(=O)c1cc(NC(=O)c2cc(-c3ccccn3)c(Cl)cc2Cl)n(-c2ccccc2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.