反应 #1803592

反应方程式

Diisopropyldiazodicarboxylate

5-[2-(3-Hydroxy-4-methoxy-phenylamino)-pyrimidin-4-yl]-thiophene-2-carboxylic acid (1-phenyl-ethyl)-amide

dimethylaminoethanol

triphenylphosphine

→

5-{2-[3-(2-Dimethylamino-ethoxy)-4-methoxy-phenylamino]-pyrimidin-4-yl}-thiophene-2-carboxylic acid (1-phenyl-ethyl)-amide

收率 1.0%

溶剂

DMSO

THF

反应条件

后处理

1. 1
   温度The reaction mixture was slowly warmed to room temperature
2. 2
   其他purified by mass triggered reverse phase HPLC

实验过程

5-[2-(3-Hydroxy-4-methoxy-phenylamino)-pyrimidin-4-yl]-thiophene-2-carboxylic acid (1-phenyl-ethyl)-amide (35 mg, 78 μmol), dimethylaminoethanol (26 μL, 156 μmol), and triphenylphosphine (41 mg, 156 μmol) were dissolved in 0.14 mL THF and cooled to 0° C. Diisopropyldiazodicarboxylate (31 μL, 156 μmol) were added dropwise. The reaction mixture was slowly warmed to room temperature and stirred overnight. The crude product was diluted with DMSO and purified by mass triggered reverse phase HPLC to afford 0.3 mg of pure 5-{2-[3-(2-Dimethylamino-ethoxy)-4-methoxy-phenylamino]-pyrimidin-4-yl}-thiophene-2-carboxylic acid (1-phenyl-ethyl)-amide (0.6 μmol, 1%). 1H NMR (500 MHz, DMSO-d6) δ 9.49 (s, 1H), 8.94 (d, J=8 Hz, 1H), 8.47 (d, J=5 Hz, 1H), 7.98 (d, J=4 Hz, 1H), 7.93 (d, J=4 Hz, 1H), 7.57 (m, 1H), 7.38 (m, 2H), 7.31 (m, 4H), 7.23 (m, 1H), 6.88 (d, J=8 Hz, 1H), 5.12 (quintet, J=7.5 Hz, 1H), 4.05 (t, J=6 Hz, 2H), 3.71 (s, 3H), 2.64 (t, J=6 Hz, 2H), 2.17 (s, 6H), 1.48 (d, J=6.5 Hz, 3H). MS: m/z 518 (M+H+).

来源