3-(pyridine-3-carbonyl)oxolan-2-one

3-(Pyridin-3-yl)dihydrofuran-2(3H)-one

3-[(2-Oxotetrahydrofuran-3-yl)carbonyl]pyridine

α-(2-Hydroxyethyl)-β-oxo-3-pyridinepropionic Acid γ-Lactone