Using COc1cc(-c2nc(N)c3ccccc3n2)cc(OC)c1OC to produce Cc1ccc(Nc2nc(-c3cc(O)c(O)c(O)c3)nc3ccccc23)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.