Using O=C(O)c1cccnc1Nc1ccc(Cl)cc1Cl, Nc1nc2ccc(F)cc2s1 to produce O=C(Nc1nc2ccc(F)cc2s1)c1cccnc1Nc1ccc(Cl)cc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.