反应详情

温度

0 °C

Acetonitrile (30 ml) was added to a solution of tert-butyl {[(1R,2R,5S)-5-(dimethylcarbamoyl)-2-hydroxycyclohexyl]sulfamoyl}carbamate (12.1 g) in acetonitrile (30 ml), and the obtained solution was then cooled to approximately 0° C. Thereafter, methanesulfonyl chloride (3.77 ml) was added to the reaction solution. N-methylmorpholine (6.81 ml) was added dropwise to the reaction mixture, and the obtained mixture was then stirred for approximately 3 hours. Thereafter, water (61 ml) was added to the reaction mixture, and a 6 mol/l hydrochloric acid solution was then added thereto to adjust the pH of the mixture to pH 3. Water (93 ml) was further added to the mixture, and the thus obtained mixture was then stirred for approximately 15 hours. Thereafter, the precipitated solid was collected by filtration and was then washed with a 27.5% acetonitrile aqueous solution (30 ml). The obtained solid was dried under reduced pressure to obtain the title compound (13.0 g, yield: 89%). The spectra of the resulting product, which were obtained using various devices, were matched with those obtained in Example 5.

1. stirringthe thus obtained mixture was then stirred for approximately 15 hours
2. filtrationThereafter, the precipitated solid was collected by filtration
3. washwas then washed with a 27.5% acetonitrile aqueous solution (30 ml)
4. customThe obtained solid was dried under reduced pressure