反应详情

Prepared analogously to Compound 3D replacing diethylamine with ethylamine to afford 1.41 g of the title product (70%). 1H NMR (400 MHz, CD3OD) δ 7.55 (d, J=2.3 Hz, 1H), 7.25 (dd, J=2.4, 8.7 Hz, 1H), 6.67 (d, J=8.8 Hz, 1H), 3.32-3.38 (m, 2H), 1.20 (t, J=7.3 Hz, 3H). MS (ESI): m/z 243.33 [M+H]+. UPLC: tR=0.98 min (UPLC-SQD: analytical—2 min).