Using COc1ccc(CN2CCN(Cc3ccc(OC)c(OC)c3)CC2)cc1OC to produce Oc1ccc(CN2CCN(Cc3ccc(O)c(O)c3)CC2)cc1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.