(5-hydroxy-4-oxopyran-2-yl)methyl benzoate

5-[4,5-双(苯甲氧基)-2-吡啶基]-1,3,4-恶二唑-2(3H)-酮

5-苄氧基-4-氧代-4H-吡喃-2-羧酸

2-(hydroxymethyl)-1-methyl-5-phenylmethoxypyridin-4-one