Aminoacetonitrile → ethyl 4-(3-(cyanomethylcarbamoyl)phenyl)-7H-pyrrolo[2,3-d]pyrimidine-5-carboxylate

Participants

Reaction Conditions

Reaction Steps

To a mixture of crude 3-(5-(ethoxycarbonyl)-7H-pyrrolo[2,3-d]pyrimidin-4-yl)benzoic acid 113 mg (theoretical mass 55 mg, 0.18 mmol), 2-aminoacetonitrile (49.5 mg, 0.883 mmol), HATU (101 mg, 0.265 mmol) in DMF (1.0 mL) was added DIPEA (62 μL, 0.35 mmol). The reaction mixture was heated to 45° C. for 2 hours and then diluted with ethyl acetate (5 mL). The reaction mixture was washed with 2 M aqueous sodium bicarbonate (5 mL) and brine (5 mL), dried over sodium sulfate, filtered and concentrated under reduced pressure. The residue was purified by reverse phase HPLC using an acetonitrile gradient in water with 0.1% TFA modifier to give ethyl 4-(3-(cyanomethylcarbamoyl)phenyl)-7H-pyrrolo[2,3-d]pyrimidine-5-carboxylate. LRMS (ESI) calc'd for C18H16N5O3[M+H]+: 350, found 350. 1H NMR (600 MHz, DMSO-D6) δ 9.19 (t, J=5.28 Hz 1H), 8.55 (s, 1H), 8.20 (s, 1H), 8.12 (s, 1H), 7.86 (d, J=8.21 Hz, 1H), 7.75 (d, J=7.63 Hz, 1H), 7.48 (t, J=7.63 Hz, 1H), 6.86 (bs, 1H), 4.30 (q, J=5.28 Hz, 2H), 3.76 (q, J=7.04 Hz, 2H), 0.83 (t, J=7.04 Hz, 3H).

Provenance & Evidence