反应详情

温度

120 °C

2-(4-tert-Butoxycarbonylamino-benzoylamino)-3-{4-[5-(4-tert-butoxycarbonylamino-phenyl)-[1,2,4]oxadiazol-3-yl]-2-fluoro-phenyl}-propionic acid ethyl ester. EDCI (10 mg, 0.05 mmol) was added to a solution of 4-tert-butoxycarbonylamino-benzoic acid (12 mg, 0.05 mmol) in dry CH2Cl2 (5 mL). After the mixture was stirred for 0.5 hrs, 2-(4-tert-butoxycarbonylamino-benzoylamino)-3-[3-fluoro-4-(N-hydroxycarbamimidoyl)-phenyl]-propionic acid ethyl ester (25 mg) was added and the mixture was heated for another 1 hr at 120° C. in a sealed tube. The mixture was partitioned between EtOAc and water. The combined organic layers were washed with brine, dried over anhydrous Na2SO4, concentrated under reduced pressure, and purified by silica gel chromatography to give the title compound (3 mg) as a white solid.

1. customThe mixture was partitioned between EtOAc and water
2. washThe combined organic layers were washed with brine
3. dry with materialdried over anhydrous Na2SO4
4. concentrationconcentrated under reduced pressure
5. custompurified by silica gel chromatography