反应详情

The title compound was prepared in the manner analogous to Example 1 using 74A. mp 116-117° C.; IR (KBr) cm−1: 3028, 1741, 1704, 1511, 1235, 1110; 400 MHz 1H NMR (DMSO-d6): δ 12.96 (br(s), 1H), 7.74-7.85 (m, 2H) 7.45-7.54 (m, 1H), 7.08-7.15 (m, 2H), 7.04 (d, 1H, J=8.5 Hz), 6.84-6.91 (m, 2H), 6.56 (d, 1H, J=8.5 Hz), 5.09 (s, 2H), 4.61 (s, 2H), 3.94 (s, 2H), 2.75 (t, 2H, J=7.5 Hz), 2.66 (t, 2H, J=7.5 Hz), 1.88 (pentet, 2H); MS m/z 505 (M−1). Anal. Calc'd for C26H22F4O4S: C, 61.65H, 4.38. found: C, 61.50; H, 4.07.