反应详情

In the same way as that described in Example 11, Step 2, using 1-(methylsulphonylaminocarbonyl)-3-nitrobenzene (4 g, 16 mmol), 10% palladium on carbon (0.5 g, 12.5% (w/w)) in water (5 ml) and ethanol (100 ml), the title compound (2.9 g, 83%) was afforded as a tan powder after trituration with diethyl ether. mp 153°-155° C. 1H NMR (360 MHz, D6 -DMSO) δ 3.3 (3H, s), 6.79 (1H, d, J=7.7 Hz), 7.05 (1H, d, J=7.7 Hz), 7.08 (1H, d, J=1.9 Hz), 7.13 (1H, dd, J=7.7 and 7.7 Hz).