对硝基乙酰苯胺

N-BOC-3-甲磺酰氧基哌啶

1,3-环丁烷二酮

(4-formylphenyl) trifluoromethanesulfonate

3-(3,4-二氟苯基)-4-(4-甲基磺酰基苯基)-5H-呋喃-2-酮