[CH3:1][S:2]([NH:5][C:6]([C:8]1[CH:13]=[CH:12][CH:11]=[C:10]([N+:14]([O-])=O)[CH:9]=1)=[O:7])(=[O:4])=[O:3].C(OCC)C>[Pd].O.C(O)C>[CH3:1][S:2]([NH:5][C:6]([C:8]1[CH:13]=[CH:12][CH:11]=[C:10]([NH2:14])[CH:9]=1)=[O:7])(=[O:4])=[O:3]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).
Wird geladen…
