Sodium hydride → HCID 21949351, compound

Participants

Reaction Steps

4-(1H-5-Indolyloxy)-2-pyridinamine (2.0 g, 8.9 mmol, CAS No. 417722-11-3) which was described in WO 02/32872 was dissolved in N,N-dimethylformamide (20 ml); and sodium hydride (426 mg, 10.7 mmol) was added thereto at room temperature while stirring. The reaction mixture was cooled with ice bath after 30 minutes; phenyl N-(3-methylbutyl)carbamate (2.02 g, 9.75 mmol) was added thereto; and the reaction mixture was stirred for 3 hours at room temperature. The reaction mixture was partitioned between ethyl acetate and water; the organic layer was washed with water and brine, dried over anhydrous sodium sulfate, and concentrated; and the residue was purified by NH-silica gel column chromatography (hexane:ethyl acetate=3:1) to yield the title compound as crystals (1.45 g, 4.3 mmol, 48%).

Provenance & Evidence