Using COc1ccccc1O, OCCCc1oc(Sc2ncccn2)nc1-c1ccc(Cl)cc1 to produce COc1ccccc1OCCCc1oc(Sc2ncccn2)nc1-c1ccc(Cl)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.