Trifluoroacetic acid → HCID 73296111, compound

Participants

Reaction Steps

N-(1-Hydroxy-2-methylpropan-2-yl)-2-(pyridin-3-ylamino)-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxamide (32 mg, 70.1 μmol) was dissolved in dichloromethane (1.2 mL) and treated with trifluoroacetic acid (160 mg, 108 μL, 1.4 mmol). The mixture was stirred at room temperature for 16 h. The mixture was concentrated then re-dissolved in dichloromethane (1 mL), methanol (0.5 mL) and ammonium hydroxide (0.2 mL) and the mixture stirred at room temperature for 1 h. The mixture was concentrated in vacuo then triturated with water and filtered. The solid obtained was washed with ether then dried to give N-(1-hydroxy-2-methylpropan-2-yl)-2-(pyridin-3-ylamino)-5H-pyrrolo[2,3-b]pyrazine-7-carboxamide (21 mg, 64.3 μmol, 92%) as a light yellow solid. 1H NMR (400 MHz, DMSO-d) 6 ppm: 12.39 (s, 1H), 9.66 (s, 1H), 8.85 (d, J=2.5, 1 H), 8.21 (m, 1H), 8.16 (dd, J=4.7, 1.6, 1 H), 8.04 (s, 1H), 8.03 (s, 1H), 7.67 (s, 1H), 7.33 (m, 1H), 5.05 (t, J=5.6, 1 H), 3.58 (d, J=5.9, 2 H), 1.36 (s, 6H); MS (EI/CI) m/z: 327.1 [M+H].

Provenance & Evidence