3-Fluorobenzoic Acid → HCID 52913683, compound

Participants

Reaction Steps

Compound 22 (10 mg, 0.047 mmol, 1.2 eq), 3-fluorobenzoic acid (5.5 mg, 0.039 mmol, 1.0 eq), O-(7-Azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate (31 mg, 0.082 mmol, 2.1 eq), and N,N-Diisopropylethylamine (11 mg, 0.085 mmol, 2.1 eq) were dissolved in CH2Cl2 (0.43 mL) and DMF (0.09 mL) and stirred at rt overnight. The reaction was quenched with water, and the layers were separated via phase separation. The organic layer was dried on air concentrator and purified by flash chromatography on silica gel to give 5.5 mg (42%) of the title compound as a white solid: 1H NMR (400 MHz, CDCl3) δ 9.08 (s, 1H), 8.57 (s, 2H), 8.13 (s, 1H), 7.80 (s, 1H), 7.74 (s, 1H), 7.59 (dd, J=18.9, 8.4 Hz, 2H), 7.51-7.46 (m, 1H), 7.31-7.26 (m, 1H), 7.08 (s, 1H); ES-MS [M+1]+: 335.1.

Provenance & Evidence