Using O=C(O)Cc1cnoc1-c1ccccc1, Nc1nc(-c2ccc(Cl)cc2)cs1 to produce O=C(Cc1cnoc1-c1ccccc1)Nc1nc(-c2ccc(Cl)cc2)cs1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.