反应详情

Following the procedure as described in Preparation 13, making variations as required to replace bromomethyl-2,2-difluorocyclopropane with cyclopropylmethyl bromide to react with ethyl 4-methyl-2-(2-oxoimidazolidin-1-yl)thiazole-5-carboxylate, the title compound was obtained in 96% yield: 1H NMR (300 MHz, CDCl3) δ 4.23 (q, J=7.2 Hz, 2H), 4.07 (t, J=7.8 Hz, 2H), 3.67 (t, J=7.8 Hz, 2H), 3.16 (d, J=6.9 Hz, 2H), 2.58 (s, 3H), 1.28 (t, J=7.2 Hz, 3H), 0.97-0.88 (m, 1H), 0.59-0.42 (m, 2H), 0.25-0.12 (m, 2H); MS (ES+) m/z 310.3 (M+1).

1. customas described in Preparation 13