反应详情

DIPEA (35.8 μL, 206 μmol) was added to a solution of (2R,4R)-4-amino-5-(5′-chloro-2′-fluorobiphenyl-4-yl)-2-hydroxypentanoic acid butyryloxymethyl ester (30.0 mg, 68.5 μmol), 1-hydroxy-1H-1,2,3-triazole-4-carboxylic acid (13.3 mg, 103 μmol) and HATU (39.1 mg, 103 μmol) in DMF (500 μL, 6.5 mmol). The resulting mixture was stirred at room temperature for 30 minutes, then concentrated in vacuo to yield a clear yellow liquid. The crude liquid was purified by preparative scale HPLC (C18 column chromatography, small column, using 30-90% MeCN in water with 0.05% TFA) to yield the title compound as a white solid (9.0 mg). MS m/z [M+H]+ calc'd for C25H26ClFN4O7, 549.15. found 549.1.

1. concentrationconcentrated in vacuo
2. customto yield a clear yellow liquid
3. customThe crude liquid was purified by preparative scale HPLC (C18 column chromatography, small column, using 30-90% MeCN in water with 0.05% TFA)