5-硝基-3-硝基糠醛双乙酸酯

2-(3-呋喃羰基)-3-氧代-2,8-二氮杂螺[4.5]癸烷-8-羧酸 1,1-二甲基乙酯

methyl 5-(furan-3-yl)-1,3-oxazole-4-carboxylate

2-(furan-3-yl)chromen-4-one

2-(furan-3-yl)-4-oxochromene-3-carboxylic acid