Triethylamine → Methyl 3-[({[6-fluoro-3'-(hydroxymethyl)-3-biphenylyl]methyl}amino)-carbonyl]benzoate

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Reaction Steps

To 3-[(methyloxy)carbonyl]benzoic acid (0.18 g, 1 mmol) in CH2Cl2 (25 mL) was added HBTU (0.379 g, 1 mmol), followed by [5′-(aminomethyl)-2′-fluoro-3-biphenylyl]methanol (0.231 g, 1 mmol), and triethylamine (0.278 mL, 2 mmol). The mixture was stirred under argon overnight. The reaction mixture was then concentrated to dryness, and taken up in EtOAc and H2O. The organic phase was washed 2× with H2O, 1× with brine, dried and concentrated. The residue was absorbed on Isolute® Sorbent, and CombiFlashed on a 12 g column eluted with 0-100% EtOAc/hexane to afford the title compound as a white solid. LC-MS m/z 393.8 (M+H)+, 1.98 min (ret time); analytical HPLC shows 97.2% purity, (ret time 7.205 min).

Provenance & Evidence