1H-Pyrrolo[2,3-b]pyridine-3-carbaldehyde → HCID 178469527, compound

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Reaction Steps

To a solution of ethyl 2-{[2-(2-methoxyethoxy)-4-methylphenyl]amino}-4-oxo-4,5-dihydrofuran-3-carboxylate (0.015 g, 0.045 mmol) which similarly prepared according to the procedure described in the Example 29, First step and 7-azaindole-3-carboxaldehyde (0.0067 g, 0.046 mmol) in ethanol (0.2 mL), 2M hydrochloric acid in ethanol (0.023 mL, 0.045 mmol) was added at ambient temperature. The mixture was refluxed for 4 h. Cooled to ambient temperature, the solvent was removed under reduced pressure. The residue was purified by preparative HPLC to afford the titled compound as solid (0.0090 g, y. 43%).

Provenance & Evidence