Using COc1ccnc(CCl)c1OC, Sc1nc2cc(Cl)ccc2[nH]1 to produce COc1ccnc(CSc2nc3cc(Cl)ccc3[nH]2)c1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.