Using O=C1NC(=O)c2ccccc21, O=C(CBr)c1cc(Cl)ccc1Cl to produce O=C(CN1C(=O)c2ccccc2C1=O)c1cc(Cl)ccc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.