Using NCC(O)c1cccnc1, O=C(O)c1cc2cc(Cl)ncc2[nH]1 to produce O=C(NCC(O)c1cccnc1)c1cc2cc(Cl)ncc2[nH]1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.