Using Cn1cnc(-n2nc3c4ccccc4n(Cc4ccc(-n5cccn5)cc4)cc-3c2=O)c1C=O to produce Cn1cnc(-n2nc3c4ccccc4n(Cc4ccc(-n5cccn5)cc4)cc-3c2=O)c1CO, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.