Diisopropylethylamine → HCID 67345319, compound

Participants

Reaction Conditions

Reaction Steps

A suspension of 1-benzenesulfonyl-4-chloro-5-nitro-1H-pyrrolo[2,3-b]pyridine (15.3 g, 45.4 mmol), 3-amino-piperidine-1-carboxylic acid tert-butyl ester (10.00 g, 49.9 mmol), and diisopropylethylamine (25 ml, 140 mmol) in propan-2-ol (200 ml) was heated at 80° C. for 20 h. The mixture was then cooled to 25° C. and stirred for 12 h. The resulting yellow solid was collected by vacuum filtration, washed with propan-2-ol (1×30 ml), and was air-dried to afford 3-(1-benzenesulfonyl-5-nitro-1H-pyrrolo[2,3-b]pyridin-4-ylamino)-piperidine-1-carboxylic acid tert-butyl ester (19.7 g, 87%). LCMS (Method G, ESI): RT=1.25 min, m+H=502.3. This material was used in the next step below without additional purification or characterization.

Provenance & Evidence