反应详情

The title compound was prepared according to the method of Example 94b, employing methyl (2Z)-2-{[(benzyloxy)carbonyl]amino}-3-(4-methyl-2-thienyl)acrylate (95b) (3.38 g, 10.2 mmol), triethylamine (0.722 g, 7.14 mmol), and 2-aminothiophenol (6.43 g, 51.4 mmol) in anhydrous methanol (41 mL). The crude product was crystallized from 4:1 (v/v) petroleum ether/ether affording the title compound (2.74 g, 59%) as a pale yellow solid. 1H NMR (300 MHz, d6-DMSO) δ2.04 (s, 3H), 3.38 (s, 3H), 4.56 (t, 1H, J=8.3 Hz), 4.85 (d, 1H, J=7.9 Hz), 5.09 (m, 2H), 5.42 (bs, 2H), 6.36 (t, 1H, J=7.5 Hz), 6.56 (s, 1H), 6.65 (d, 1H, J=7.9 Hz), 6.94-7.02 (m, 3H), 7.30-7.42 (m, 5H), 8.21 (d, 1H, J=9.3 Hz). MS APCI, m/z=457 (M+1). LC/MS: 2.64 min.

1. customThe crude product was crystallized from 4:1 (v/v) petroleum ether/ether affording the title compound (2.74 g, 59%) as a pale yellow solid
2. custom2.64 min.