Dimethylformamide → (5R,6S,8S)-5-Methyl-6-phenyl-3-(2,2,2-trifluoroethyl)-5,6,7,8-tetrahydroimidazo[1,2-a]pyridine-8-amine

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Reaction Steps

To a solution of tert-butyl[(5R,6S,8S)-5-methyl-6-phenyl-3-(2,2,2-trifluoroethyl)-5,6,7,8-tetrahydroimidazo[1,2-a]pyridine-8-yl]carbamate (18.4 mg, 0.045 mmol) in dichloromethane (900 μL) was added trifluoroacetic acid (104 μL, 1.35 mmol). The mixture was stirred 90 min. N,N-dimethylformamide was added and the dichloromethane was removed under vacuum. The resulting mixture was purified by reverse phase chromatography (C-18, 95% water/acetonitrile→25% water/acetonitrile with 0.1% trifluoroacetic acid). Product containing fractions were treated with 1 M hydrochloric acid and concentrated to give the hydrochloride salt of the title compound (10.3 mg). MS 310.3 (M+1).

Provenance & Evidence