Using COCOc1cc(OC)c(OC)cc1-c1nc2c(CNCc3ccccn3)cccc2o1 to produce COc1cc(O)c(-c2nc3c(CNCc4ccccn4)cccc3o2)cc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.