反应详情

The title compound was prepared in the manner analogous to Example 1 using 73A. mp 151-152° C.; IR (KBr) cm−1: 3076, 3050, 1748, 1426, 1244, 1109; 400 MHz 1H NMR (DMSO-d6): δ 12.94 (br(s), 1H), 7.87 (s, 1H), 7.68-7.72 (m, 2H) 7.00-7.15 (m, 3H), 6.82-6.92 (m, 2H), 6.56 (d, 1H, J=8.5 Hz), 5.12 (s, 2H), 4.61 (s, 2H), 3.94 (s, 2H), 2.74 (t, 2H, J=7.5 Hz), 2.66 (t, 2H, J=7.5 Hz), 1.87 (pentet, 2H); MS m/z 521 (M−1). Anal. Calc'd for C26H22ClF3O4S: C, 59.71; H, 4.24. found: C, 59.54; H, 4.11.