HCID 18368154, compound → HCID 18367865, compound

Participants

Reaction Steps

3-Acetylamino-2-benzoyl-6-nitroindole (Example 152, 180 mg. 0.56 mmol) was hydrogenolyzed in the presence of palladium on activated carbon (5%, 18 mg) in ethanol (30 ml) at atmospheric pressure for 4 h. Catalyst was removed by filtration and the filtrate was concentrated. The residue was purified by flash column chromatography eluting with 0 to 50% ethyl acetate in hexanes and the product recrystallized from a mixture of methanol/ethyl acetate/hexane to give 85 mg of the title compound. m.p.: 219-221° C. 1H-NMR (DMSO-d6) δ: 10.9 (1H, br s), 9.54 (1H, s), 7.44-7.66 (5H, m), 7.38(1H, d, J=9.2 Hz), 6.47-6.45 (2H, m), 5.35 (2H, s), 1.69 (3H, s)

Provenance & Evidence