Using COc1cccc(-c2cncc(-c3cc(Cl)nc(-c4ccccn4)n3)c2)c1, OCc1ccccc1 to produce COc1cccc(-c2cncc(-c3cc(OCc4ccccc4)nc(-c4ccccn4)n3)c2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.