Trifluoroacetic acid → (2s,3s)-3-Methyl-2-(2-oxo-3-{[2-(2-pyridinyl)-1,3-thiazol-4-yl]methyl}-1-imidazolidinyl)pentanoic acid trifluoroacetate

Participants

Reaction Conditions

Reaction Steps

A solution containing the product of Example 3K (0.214 g, 0.50 mmol) in dichloromethane (2 mL) was treated with trifluoracetic acid (2 mL), stirred at 25° C. for 1 hour and concentrated. The residue was chromatographed on silica gel eluting with 0-15% methanol in dichloromethane to give the title compound (0.24 g) as the trifluoroacetic acid salt.

Provenance & Evidence