Using Nc1c(Cl)cc(O)c2c1C(=O)c1ccccc1C2=O, OCCO to produce Nc1c(OCCO)cc(O)c2c1C(=O)c1ccccc1C2=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.