反应详情

To tert-butyl (3SR,5SR)-3-(2-chloro-4-fluorophenyl)-5-hydroxy-2-oxopiperidin-1-ylcarbamate (1.67 g, 4.7 mmol) was added HCl (10 mL, 4 N in dioxane) and the reaction stirred for 1 hour. The reaction was then concentrated to dryness, redissolved in dichloromethane, washed with sodium hydrogen carbonate, dried with sodium sulfate and the solvent was evaporated in vacuo afford the title compound was obtained as a light yellow crystalline solid (1.11 g, 92%). MS ISP (m/e): 259.1 [(M+H)+].

1. concentrationThe reaction was then concentrated to dryness
2. dissolutionredissolved in dichloromethane
3. washwashed with sodium hydrogen carbonate
4. dry with materialdried with sodium sulfate
5. customthe solvent was evaporated in vacuo