5-Amino-1-butyl-3,3-dimethyl-6-nitro-1,3-dihydro-indol-2-one → N-(1-Butyl-3,3-dimethyl-6-nitro-2-oxo-2,3-dihydro-1H-indol-5-yl)-3-(4-isopropoxy-phenyl)-propionamide

Participants

Reaction Steps

N-(1-Butyl-3,3-dimethyl-6-nitro-2-oxo-2,3-dihydro-1H-indol-5-yl)-3-(4-isopropoxy-phenyl)-propionamide is prepared from A4 (500 mg) and 3-(4-isopropoxy-phenyl)-propionyl chloride (1.01 g; 5.5 mmol) as described in Example 1a. The crude material is purified by flash chromatography eluting with light petroleum/EtOAc (6:1) to give the compound (791 mg).

Provenance & Evidence