反应详情

The title compound was prepared by a method analogous to Intermediate 4 but using 1H-pyrazole-4-carbonitrile in Step 1. 1H NMR (400 MHz, CDCl3) δ 1.65 (m, 2H), 1.89 (m, 2H), 7.80 (s, 1H), 8.02 (s, 1H); MS (ES−) (M−H) 176.4, LCMS retention time: 1.04 minutes (Method M).