2-(3-(trifluoromethyl)phenylcarbamoyl)phenyl acetate 、
3-甲基磺酰苯胺盐酸盐 、
N,N-二异丙基乙胺 在
2-(3-(methylsulfonyl)phenylcarbamoyl)phenyl acetate 、 crude product 、 hexanes EtOAc 作用下,
以to give 30 (598 mg, 89%) as an amorphous glass的产率得到2-(3-(methylsulfonyl)phenylcarbamoyl)phenyl acetate