Using O=C(O)c1ccc(-c2nnn[nH]2)cc1Sc1ccc(Cl)cc1 to produce O=c1c2ccc(-c3nnn[nH]3)cc2sc2ccc(Cl)cc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.