Using Nc1nc(O)c(-c2cccc(Cl)c2)s1, O=C(O)c1ccc2cccnc2c1O to produce O=C(NC1=NC(=O)C(c2cccc(Cl)c2)S1)c1ccc2cccnc2c1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.