反应详情

Prepared from VII and 1,4-benzodioxan-6-amine. Flash chromatography eluent (DCM-EtOAc, 8:2). Yield: 33%; yellow solid; mp 180-190° C.; IR (KBr) νmax/cm−1 3055, 2978, 2932, 2875, 2230, 1709, 1638, 1609, 1578, 1496, 1460, 1376, 1299, 1281, 1239, 1200, 1151, 1063, 916, 885, 814; 1H NMR (300 MHz, DMSO-d6) δ 8.37 (d, 1H, J=8.4 Hz), 7.85 (m, 1H), 7.76 (m, 1H), 6.88 (d, 1H, J=8.4 Hz), 6.56 (m, 2H), 4.25 (s, 4H); HRMS calcd for C18H12N5O2S (M+H+): 362.0712, found 362.0696.