Trifluoroacetic acid → (2S)-2-{[(Z)-3-cyclohexyl-1-methyl-3-oxo-1-propenyl]amino}-3-{4-[2-(5-methyl-2-phenyl-1,3-oxazol-4-yl)ethoxy]phenyl}propanoic acid

Participants

Reaction Steps

The title compound was prepared (as described above for the preparation of Example 2) from 428 mg (0.89 mmol) of Intermediate 45 (as the TFA salt) and 150 mg (0.89 mmol) of Intermediate 33 to yield 245 mg (53% yield) of Example 43 as a solid beige-colored glass: TLC (DCM/MeOH (4:1): Rf=0.69; 1H NMR (DMSO-d6, 400 MHz) δ10.79 (d, 1H, J=9.0), 7.89 (m, 2H), 7.50-7.41 (m, 3H), 7.05 (d, 2H, J=8.4), 6.77 (d, 2H, J=8.4), 4.7 (s, 1H), 4.12 (t, 2H, J=6.5), 3.9 (br s, 1H), ), 3.04 (dd, 1H, J=13.6, 4.0), 2.87 (t, 2H, J=6.5), 2.64 (dd, 1H, J=13.6, 8.9), 2.32 (s, 3H), 1.9 (m, 1H), 1.6 (m, 4H), 1.5 (s, 3H), 1.25-1.05 (m, 4H): low resolution MS (ES+)m/e 517.3 (MH+).

Provenance & Evidence