Tert-Butylamine → HCID 178449350, compound

Participants

Reaction Steps

Combined EDC (45.1 mg, 0.235 mmol), HOBT (21.18 mg, 0.157 mmol) and 6-(4-(4-cyanophenyl)-5-hydroxy-1H-pyrazol-1-yl)nicotinic acid (48 mg, 0.157 mmol) in DMF (1 mL) then added tert-butylamine (0.050 mL, 0.470 mmol) and Hunig's base (0.082 mL, 0.470 mmol) and then stirred at 20° C. for 21 h. Addition EDC (45 mg) and tert-butyl amine (100 uL) were then added and stirring continued at 20° C. for 4 h. Then additional HATU (119 mg, 0.313 mmol) was added and stirring continued at 20° C. for 2 h. The reaction mixture was then diluted with EtOAc (50 mL), washed with saturated aqueous ammonium chloride (50 mL) and brine, dried over magnesium sulfate, and concentrated in vacuo to give a residue which was dissolved in DMSO (1 mL) and purified by prep HPLC (ACN/water with formic acid) to give the title compound (9.5 mg, 16.77% yield) as a tan solid. 1H NMR (400 MHz, DMSO-d6) δ ppm 1.34 (s, 9H) 7.72 (d, J=8.3 Hz, 2H) 7.98 (s, 1H) 8.07 (br. s., 2H) 8.33 (d, J=7.3 Hz, 2H) 8.58 (br. s., 1H) 8.79 (s, 1H) 13.48 (br. s., 1H). MS m/z 362 [M+H]+.

Provenance & Evidence