Using COC(=O)c1nccnc1N, O=C(O)Cc1ncc(Cl)cc1Cl to produce COC(=O)c1nccnc1NC(=O)Cc1ncc(Cl)cc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.