2-hydroxy-4-({[5-(trifluoromethyl)biphenyl-3-yl]sulfonyl}amino)benzoic acid 、
N,N'-羰基二咪唑 、
甲醇 、
吡啶 在
methyl 2-hydroxy-4-({[5-(trifluoromethyl)biphenyl-3-yl]sulfonyl}amino)benzoate 作用下,
以
乙腈 为溶剂,
以The title compound was obtained in 56% yield (8.2 mg) 1H NMR (600 MHz, CDCl3) δ ppm 3.91 (s, 3H) 6.68 (dd, J=8.66, 2.20 Hz, 1H) 6.70 (d, J=2.20 Hz, 1H) 7.05 (br. s., 1H) 7.44-7.47 (m, 1H) 7.47-7.52 (m, 2H) 7.52-7.55 (m, 2H) 7.74 (d, J=8.66 Hz, 1H) 7.99-8.01 (m, 1H) 8.06-8.09 (m, 1H) 8.23 (t, J=1.59 Hz, 1H) 10.88 (s, 1H)的产率得到methyl 2-hydroxy-4-({[5-(trifluoromethyl)biphenyl-3-yl]sulfonyl}amino)benzoate