反应详情

A solution of isopropyl 2-isopropoxy-4-oxo-4,5-dihydrofuran-3-carboxylate (0.10 g, 0.44 mmol) which similarly prepared according to the procedure described in the Example 74, Third step using diisopropyl malonate and chloroacetyl chloride, N-methyl-N-(2-thienylmethyl)amine (0.061 mg, 0.048 mmol) and triethylamine (0.18 mL, 1.3 mmol) in 2-propanol (2.0 mL) was stirred for 7 days then refluxed for further 24 h. To this reaction mixture, 7-azaindole-3-carboxaldehyde (0.065 g, 0.44 mmol) was added then the mixture was refluxed for 24 h. Cooled to ambient temperature, the reaction mixture was purified by preparative HPLC to afford the titled compound as solid (0.0038 g, y. 2%).

1. temperaturethen refluxed for further 24 h
2. temperaturethe mixture was refluxed for 24 h
3. customthe reaction mixture was purified by preparative HPLC