反应详情

Preparation of example 154 from the title compound of Example 7 (hydrochloride) (40 mg, 0.128 mmol), (2R)-2-({[(1,1-dimethylethyl)oxy]carbonyl}amino)-3-naphthalen-2-ylpropanoic acid (58 mg, 0.192 mmol), triethylamine (0.054 mL, 0.384 mmol), and O-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate (73 mg, 0.192 mmol) in CH2Cl2 (0.4 mL) and N,N-dimethylformamide (0.4 mL) was carried out analogously to Example 11. Silica gel chromatography (eluted with 1:1 hexane:acetone), also in an analogous manner, afforded the title compound (69 mg, 0.120 mmol) as a yellow powder in 94% yield.

1. washSilica gel chromatography (eluted with 1:1 hexane:acetone)