HCID 57786250, compound → 9-Chloro-1-(2,4-dichlorophenyl)-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazol-6-amine

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Reaction Steps

A mixture of 9-chloro-1-(2,4-dichlorophenyl)-6-nitro-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazole (123 mg, 0.308 mmol) and 10% palladium on carbon (12 mg) in acetic acid (5.0 mL) was stirred under hydrogen atmosphere at room temperature for 8 hr. The catalyst was removed by filtration and the filtrate was concentrated in vacuo. The residue was purified by flash chromatography on silica gel eluting with a 50-100% ethyl acetate/n-hexane gradient mixture. The filtrate was concentrated in vacuo to give the title compound (51 mg, 0.139 mmol, 45%) as an oil.

Provenance & Evidence