Using Nc1cc(-c2nc(-c3ccccc3)c(-c3nnc[nH]3)s2)ccn1, O=C(Cl)C1CC1 to produce O=C(Nc1cc(-c2nc(-c3ccccc3)c(-c3nnc[nH]3)s2)ccn1)C1CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.