反应详情

5-(4-Chloro-phenyl)-3-(dimethylamino-methyleneamino)-thiophene-2-carboxylic acid methyl ester (0.100 g, 0.310 mmol), 3-(1-methyl-piperidin-4-yloxy)-benzylamine (0.109 g, 0.370 mmol) and phenol (1.0 g) were stirred at 130° C. for 2 hours. The reaction mixture was allowed to cool to r.t. and the product was partially purified by flash chromatography using a gradient elution with n-heptane against MeOH/TEA. The fractions containing the title product were concentrated in vacuo and purified further by washing with MeOH to give the title compound. Yield: 0.052 g (36%). 1H NMR (400 MHz, CDCl3) δ 8.08 (s, 1H), 7.61 (d, 2H, J=8.52 Hz), 7.45 (s, 1H), 7.41 (d, 2H, J=8.52 Hz), 7.24 (m, 1H), 6.89 (m, 2H), 6.83 (d, 1H, J=9.02 Hz), 5.16 (s, 2H), 4.29 (bs, 1H), 2.65 (bs, 2H), 2.21-2.31 (m, 5H), 1.95 (m, 2H), 1.79 (m, 2H). MS (ESI+) 465.93 (M+1H+).

1. customthe product was partially purified by flash chromatography
2. washa gradient elution with n-heptane against MeOH/TEA
3. additionThe fractions containing the title product
4. concentrationwere concentrated in vacuo
5. custompurified further
6. washby washing with MeOH