Using O=C(O)COc1ccc(Cl)cc1Cl, COC(=O)c1ccnc(N)c1 to produce COC(=O)c1ccnc(NC(=O)COc2ccc(Cl)cc2Cl)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.