Using C=CCOCc1cc2c(Cc3cnc(N)nc3N)cc(OC)c(OC)c2o1 to produce COc1cc(Cc2cnc(N)nc2N)c2cc(CO)oc2c1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.