反应详情

Under the conditions of Example 2(a), 3.29 g (10.93 mmol) of 2-[N-(4-fluoro-2-trifluoromethylphenyl)sulfamoyl]acetic acid, 1.70 g (10.93 mmol) L-serine methyl ester hydrochloride, 1.67 g (10.93 mmol) of hydroxybenzotriazole, hydrate, as well as 1.11 g (10.93 mmol) of triethylamine and 2.26 g (10.93 mmol) of dicyclohexylcarbodiimide are reacted and worked up analogously. The crude product is chromatographed on silica gel. The title compound is eluted with ethanol and crystallized upon concentration.

1. customThe crude product is chromatographed on silica gel
2. washThe title compound is eluted with ethanol
3. customcrystallized upon concentration