反应详情

A solution of 3-chloro-2-(bromoacetamido) benzoic acid from Example 39 (4.6 g, 15.7 mmol), aniline (3.58 mL, 39.3 mmol) and DMF (45 mL) was heated to 80° C. for 8 h. The mixture was cooled, poured over H2O (400 mL) and 5% KOH (125 mL) and washed with CH2Cl2 (3×125 mL). The aqueous layer was acidified to pH 2 with 2 N HCl, cooled below room temperature and filtered. The filter cake was rinsed with cold water (50 mL) and dried under high vacuum at 45° C. to yield 3.19 g (67%) of the title compound as a tan solid; 1H NMR (DMSO-d6) δ 13.1 (broad s, 1H), 9.85 (s, 1H), 7.74 (d, J=7.6, 1H), 7.71 (d, J=8.0, 1H), 7.35 (t, J=7.6, 1H), 7.10 (t, J=7.6, 2H), 6.65-6.58 (m, 3H), 6.1 (broad s, 1H), 3.82 (s, 2H); 13C NMR (DMSO-d6) δ 169.62, 166.77, 148.33, 133.87, 132.70, 131.53, 130.93, 128.90, 128.82, 127.21, 116.59, 112.57, 47.16; MS (LSIMS, m/z) 305 (M+H+)

1. temperatureThe mixture was cooled
2. washwashed with CH2Cl2 (3×125 mL)
3. temperaturecooled below room temperature
4. filtrationfiltered
5. washThe filter cake was rinsed with cold water (50 mL)
6. customdried under high vacuum at 45° C.