L-Proline → HCID 178469788, compound

Participants

Reaction Steps

To a solution of ethyl 2-[bis(2-methoxyethyl)amino]-4-oxo-4,5-dihydrofuran-3-carboxylate (0.30 g, 1.0 mmol) which similarly prepared according to the procedure described in the Example 4, First step and 7-azaindole-3-carboxaldehyde (0.15 g, 1.0 mmol) in ethanol (5.0 mL), L-proline (0.023 g, 0.20 mmol) was added at ambient temperature. The mixture was refluxed for 2 days. Cooled to ambient temperature, the precipitate was collected by filtration, washed with ethanol then dried to afford the titled compound as solid (0.048 g, y. 11%).

Provenance & Evidence