Using COc1cc(Nc2nc3c(N4CCN(CCN5C(=O)c6ccccc6C5=O)CC4)nccn3n2)cc(OC)c1 to produce COc1cc(Nc2nc3c(N4CCN(CCN)CC4)nccn3n2)cc(OC)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.