反应详情

In a manner similar to Example 30, intermediate 3′-ethylamino-4′-nitroacetanilide was hydrogenated and then condensed with 3-benzyl-5-(3-methyl-3H-benzothiazol-2-ylidene)-2-methylthio-4-oxo-2-thiazolium p-toluenesulfonate to afford the title compound. 1H-NMR (CDCl3): δ 7.45–7.53 (3H, m), 7.27–7.37 (4H, m), 7.17 (1H, m), 7.03–7.09 (2H, m), 6.91 (1H, d), 6.83 (1H, br d), 6.75 (1H, brs), 5.18 (2H, s), 3.78 (3H, s), 2.99 (2H, m), 2.15 (3H, s), 1.03 (3H, t); MS(ESI): 530 (MH+).