反应详情

Following the procedure as described in Example 50, making variations as required to replace (2-bromoethoxy)(tert-butyl)dimethylsilane with 4-(chloromethyl)benzonitrile to react with ethyl 3-methyl-5-(2-oxoimidazolidin-1-yl)thiophene-2-carboxylate, the title compound was obtained as a cream solid in 86% yield: 1H NMR (300 MHz, CDCl3) δ 7.66 (d, J=8.1 Hz, 2H), 7.43 (d, J=8.1 Hz, 2H), 6.18 (s, 1H), 4.53 (s, 2H), 4.28 (q, J=7.1 Hz, 2H), 3.89-3.81 (m, 2H), 3.52-3.43 (m, 2H), 2.50 (s, 3H), 1.34 (t, J=7.1 Hz, 3H); MS (ES+) m/z 370.2 (M+1).