Using O=C1Nc2cccc(Cl)c2C1=O, BrC(c1ccccc1)c1ccccc1 to produce O=C1C(=O)N(C(c2ccccc2)c2ccccc2)c2cccc(Cl)c21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.