5-羟基-4-(苯基甲基)呋喃-3-酮

9-phenyl-3H-furo[3,4-b]quinolin-1-one

4-[(4-aminopyrimidin-5-yl)-(3-hydroxy-5-oxo-2H-furan-4-yl)methyl]-3-hydroxy-2H-furan-5-one

5-(2,4-dioxooxolan-3-ylidene)-1,3-diazinane-2,4,6-trione

(3E)-3-(1,3-benzodioxol-5-ylmethylidene)oxolane-2,4-dione