Using COC(=O)c1cccc(N)c1, O=C(O)COc1cc(Cl)c(Cl)cc1Cl to produce COC(=O)c1cccc(NC(=O)COc2cc(Cl)c(Cl)cc2Cl)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.