Tert-Butylamine → HCID 178449380, compound

Participants

Reaction Steps

To a suspension of 4-amino-5-{4-[(5,7-difluoro-1H-benzimidazol-2-yl)amino]phenyl}pyrrolo[2,1-f][1,2,4]triazine-6-carboxylic acid (75.0 mg, 0.178 mmol) in DMF (3 mL) was added tert-butylamine (0.021 ml, 0.196 mmol), benzotriazolyloxytris(dimethlyamino)phosphonium PF6 (86.6 mg, 0.196 mmol), and 4-methylmorpholine (0.039 ml, 0.356 mmol). The reaction was stirred for 3 hr at rt and then purified directly by HPLC using 25-85% acetonitrile in water to afford the desired product (75.3 mg, 89%). 1H-NMR (300 MHz, DMSO-d6) δ 9.80 (s, 1H), 8.02 (s, 1H), 7.80-8.02 (m, 3H), 7.38 (dd, J=6.7, 2.0 Hz, 2H), 7.00 (dd, J=8.9, 2.2 Hz, 1H), 6.85 (ddd, J=10.7, 10.7, 2.4 Hz, 1H), 6.54 (s, 1H), 4.96-5.21 (br s, 1H), 1.16 (s, 9H); ES-MS m/z 477.1 (MH)+; HPLC RT (Method B) 2.54 min.

Provenance & Evidence