Using O=C(O)CC(c1ccc(Cl)c(Cl)c1)N1C(=O)c2ccccc2C1=O, O=C(n1ccnc1)n1ccnc1 to produce NC(=O)CC(c1ccc(Cl)c(Cl)c1)N1C(=O)c2ccccc2C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.