反应详情

温度

90 °C

A solution of 3.2 g of N-tert.butyl-4(R)-thiazolidinecarboxamide and 5.0 g of 3(S)-(benzyloxyformamido)-1,2(S)-epoxy-4-phenylbutane in 130 ml of isopropanol was stirred under argon and heated at 90° C. under reflux for 3 days. The solution was evaporated under reduced pressure and the residue was purified by flash chromatography on silica gel using diethyl ethyl/n-hexane (2:1) for the elution. There were obtained 3.47 g of 3-[3(S)-(benzyloxyformamido)-2(R)-hydroxy-4-phenylbutyl]-N-tert.butyl-4(R)-thiazolidinecarboxamide. Recrystallization from ethyl acetate gave analytically pure material of melting point 62°-65° C.

1. temperatureunder reflux for 3 days
2. customThe solution was evaporated under reduced pressure
3. customthe residue was purified by flash chromatography on silica gel
4. washfor the elution