奈非西坦

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: In 300 ml of toluene was suspended 9.0 g of sodium amide in a nitrogen stream, and 21.3 g of 2-pyrrolidinone was slowly added thereto dropwise. After stirring the mixture at 60° to 70° C. for 2 hours, 19.7 g of 2-chloro-N-(2,6-dimethylphenyl)acetamide was added thereto, followed by allowing to react at 60° to 70° C. for 2 hours. To the reaction mixture was added 50 ml of hot water of about 70° to 85° C., and the mixture was allowed to cool with stirring. The precipitated crystals in the aqueous layer were recovered by filtration and dried under reduced pressure to obtain 22.4 g (91%) of the titled compound. was slowly added to react at 60° to 70° C. for 2 hours to cool with stirring The precipitated crystals in the aqueous layer were recovered by filtration dried under reduced pressure

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: In 30 ml of t-butyl methyl ether was suspended 897 mg of sodium amide in a nitrogen stream, and 2.13 g of 2-pyrrolidinone was slowly added thereto dropwise, followed by refluxing for 2 hours. After allowing to cool, 1.97 g of 2-chloro-N-(2,6-dimethylphenyl)acetamide was added thereto, followed by refluxing for 2 hours. To the reaction mixture was added 50 ml of hot water of about 70° to 85° C., and the mixture was allowed to cool with stirring. The thus formed crystals in the aqueous layer were collected by filtration and dried under reduced pressure to obtain 2.19 g (89%) of the titled compound. was slowly added by refluxing for 2 hours to cool by refluxing for 2 hours to cool The thus formed crystals in the aqueous layer were collected by filtration dried under reduced pressure

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: In 30 ml of t-butyl methyl ether was suspended 897 mg of sodium amide in a nitrogen stream, and 2.13 g of 2-pyrrolidinone was slowly added thereto dropwise, followed by refluxing for 2 hours. After allowing to cool, 1.97 g of 2-chloro-N-(2,6-dimethylphenyl)acetamide was added thereto, followed by refluxing for 2 hours. To the reaction mixture was added 50 ml of hot water of about 70° to 85° C., and the mixture was allowed to cool with stirring. The thus formed crystals in the aqueous layer were collected by filtration and dried under reduced pressure to obtain 2.19 g (89%) of the titled compound. was slowly added by refluxing for 2 hours to cool by refluxing for 2 hours to cool The thus formed crystals in the aqueous layer were collected by filtration dried under reduced pressure

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: In 300 ml of toluene was suspended 9.2 g of 60% sodium hydride in a nitrogen stream, and 21.3 g of 2pyrrolidinone was slowly added dropwise to the suspension at an inner temperature controlled at 40° C. or lower. After stirring the mixture for 2 hours, 19.7 g of 2-chloro-N(2,6-dimethylphenyl)acetamide was added thereto, and the mixture was allowed to react at 60° to 70° C. for 2 hours. To the reaction mixture was added 50 ml of hot water of about 70° to 85° C., followed by allowing to cool with stirring. The precipitated crystals in the aqueous layer were collected by filtration and dried under reduced pressure to obtain 22.2 g (90%) of the titled compound. was slowly added dropwise to the suspension at an inner temperature controlled at 40° C. to react at 60° to 70° C. for 2 hours to cool with stirring The precipitated crystals in the aqueous layer were collected by filtration dried under reduced pressure

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: In 300 ml of toluene was suspended 9.2 g of 60% sodium hydride in a nitrogen stream, and 21.3 g of 2pyrrolidinone was slowly added dropwise to the suspension at an inner temperature controlled at 40° C. or lower. After stirring the mixture for 2 hours, 19.7 g of 2-chloro-N(2,6-dimethylphenyl)acetamide was added thereto, and the mixture was allowed to react at 60° to 70° C. for 2 hours. To the reaction mixture was added 50 ml of hot water of about 70° to 85° C., followed by allowing to cool with stirring. The precipitated crystals in the aqueous layer were collected by filtration and dried under reduced pressure to obtain 22.2 g (90%) of the titled compound. was slowly added dropwise to the suspension at an inner temperature controlled at 40° C. to react at 60° to 70° C. for 2 hours to cool with stirring The precipitated crystals in the aqueous layer were collected by filtration dried under reduced pressure