Sodium hydride → HCID 24900680, compound

Participants

Reaction Steps

To a solution of 2-amino-9H-pyrido[2,3-b]indole-3-carboxamide (5, 138 mg, 0.610 mmol) in a 1:1 mixture of THF-DMF (4.5 mL) was added NaH (73.0 mg, 2.50 mmol). The mixture was stirred at RT. After 10-15 min, dimethylsulfamoyl chloride (212 mL, 1.10 mmol) was added and the reaction was stirred for another 2 h. The reaction was quenched with water (50 mL) and poured into a separatory funnel containing EtOAc (100 mL). The mixture was shaken and the layers were separated. The organic layer was washed with brine (50 mL), dried over sodium sulfate, filtered and concentrated. The crude product was purified by HPLC (Phenomenex Luna 15 μm C18, aqueous HCOOH/CH3CN) to give 2-amino-9-[(dimethylamino)sulfonyl]-9H-pyrido[2,3-b]indole-3-carboxamide as a white powder (17, 24.9 mg, 12%). HCOOH standard conditions. DAD Retention time=3.68 min. M+H=334. 1H NMR (300 MHz, DMSO-d6): δ 8.78 (s, 1H), 8.06 (s, 1H), 8.00-7.97 (m, 1H), 7.84-7.81 (m, 1H), 7.72 (br s, 2H), 7.40-7.32 (m, 3H), 3.02 (s, 6H).

Provenance & Evidence