Using CC(=O)CCC(=O)Nc1cc(COC(=O)CCC(C)=O)cc(Nc2c3ccccc3nc3ccccc23)c1 to produce CC(=O)CCC(=O)Nc1cc(CO)cc(Nc2c3ccccc3nc3ccccc23)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.