2-Fluoroethyl bromide → HCID 57404829, compound

Participants

Reaction Conditions

Reaction Steps

1-bromo-2-fluoroethane (30 mg; 0.24 mmol; 0.9 eq.) was added to a suspension of 3-[1-(4-piperidin-4-ylphenyl)-1H-1,2,3-triazol-4-yl]-1H-indazole (100 mg; 0.26 mmol; 1.0 eq.) and NaHCO3 (331 mg; 3.94 mmol; 15 eq.) in dry DMF (2 mL). The reaction mixture was heated in MW at 100° C. for 3 h. It was then diluted with water and extracted with EtOAc. Combined organic phases were washed with brine, dried over magnesium sulfate, filtered and concentrated. Purification by flash chromatography on silica (DCM: MeOH, gradient from 100:0 to 90:10) gave the title compound as a white solid (40 mg, 39%). 1H NMR (300 MHz, DMSO-d6) δ 13.36 (brs, 1H), 9.27 (s, 1H), 8.41-8.31 (m, 1H), 8.01-7.92 (m, 2H), 7.64-7.58 (m, 1H), 7.55-7.38 (m, 3H), 7.30-7.20 (m, 1H), 4.56 (dt, J=47.8, 4.9 Hz, 2H), 3.09-2.96 (m, 2H), 2.75-2.54 (m, 3H), 2.22-2.07 (m, 2H), 1.88-1.61 (m, 4H). HPLC (max plot) 99.8%; Rt 2.64 min. UPLC/MS: (MS+) 391.1, (MS−) 389.2

Provenance & Evidence