英文别名:
Ethyl 2-oxo-2-(2-oxotetrahydro-2H-pyran-3-yl)acetate;(E)-ethyl 2-hydroxy-2-(2-oxo-dihydro-2H-pyran-3(4H)-ylidene)acetate;ethyl 2-oxo-2-(2-oxooxan-3-yl)acetate;2H-Pyran-3-acetic acid, tetrahydro-α,2-dioxo-, ethyl ester;Ethyl oxo(2-oxotetrahydro-2H-pyran-3-yl)acetate