Using Cc1nc2cc(-c3nc4ccccc4o3)ccc2n1C1CCC(O)CC1 to produce Cc1nc2cc(-c3nc4ccccc4o3)ccc2n1C1CCC(=O)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.