反应详情

温度

105 °C

Formamide (118 mg, 2.62 mmol, 3.35 equiv) was added to a solution of (7-chloro-2-dimethylaminomethyl-quinolin-8-yl)-acetic acid ethyl ester (240 mg, 0.78 mmol) in N,N-dimethylformamide (1.0 ml). The solution was heated to 105° C., and then sodium methoxide (5.4 M in MeOH, 0.14 ml, 0.78 mmol, 1.0 equiv) was added dropwise over 20 minutes. After 1 hour, the reaction mixture was cooled to room temperature, diluted with water, and extracted with EtOAc and CH2Cl2. The combined organic layers were washed with brine, dried over Na2SO4, filtered, and concentrated in vacuo. Purification of the residue via flash chromatrography (gradient of CH2Cl2/MeOH 96:4 to 60:40) afforded the title compound (161 mg, 74%) as a white solid. 1H NMR (400 MHz, d6-DMSO): δ=8.35 (d, J=8.9 Hz, 1H), 7.89 (d, J=9.2 Hz, 1H), 7.63 (d, J=9.2 Hz, 1H), 7.60 (d, J=8.9 Hz, 1H), 7.41 (br s, 1H), 6.88 (br s, 1H), 4.26 (s, 2H), 3.69 (s, 2H), 2.21 (s, 6H). MS (ES+): 278.3 (M+H)+.

1. temperaturethe reaction mixture was cooled to room temperature
2. extractionextracted with EtOAc and CH2Cl2
3. washThe combined organic layers were washed with brine
4. dry with materialdried over Na2SO4
5. filtrationfiltered
6. concentrationconcentrated in vacuo
7. customPurification of the residue via flash chromatrography (gradient of CH2Cl2/MeOH 96:4 to 60:40)