Piperidine → 3-[5-(2-Morpholin-4-yl-ethoxy)-1H-indol-2-ylmethylene]-2-oxo-2,3-dihydro-1H-indole-5-sulfonic acid amide

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Reaktionsschritte

A mixture of 2-oxo-2,3-dihydro-1H-indole-5-sulfonic acid amide (27 mg, 0.12 mmol), 5-(2-morpholin-4-yl-ethoxy)-1H-indole-2-carbaldehyde (30 mg, 0.11 mmol) and piperidine (0.1 mL) in ethanol (1 mL) was heated at 90° C. for 2 hours. The reaction was cooled at 0° C. for overnight. The precipitate was collected by vacuum filtration, washed with cold ethanol and dried to give 38 mg (62%) of the title compound as an orange solid.

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