Trifluoroacetic acid → HCID 57513706, compound

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Reaction Steps

A solution of 4-{2-[2-(4-Fluoro-benzoylamino)-2-methyl-propionylamino]-4-phenyl-thiazol-5-ylmethyl}-piperazine-1-carboxylic acid tert-butyl ester (70 mg) and TFA (1.5 mL) in dichloromethane (3 mL) was stirred at RT for 2 h and concentrated. The residue was partitioned between dichloromethane and aq. K2CO3. The organic extract was dried over MgSO4, concentrated and purified by HPLC to give the title compound. m/z 482.2 (MH+). 1H NMR (CD3OD) 7.98-7.96 (m, 2H), 7.57 (d, J=8 Hz, 2H), 7.41 (t, J=8 Hz, 2H), 7.35 (d, J=8 Hz, 2H), 7.21 (t, J=8 Hz, 2H), 3.75 (s, 2H), 2.88-2.85 (m, 4H), 2.55-2.45 (m, 4H).

Provenance & Evidence