反应详情

An optically-active compound of 3-methyl-1,6-diazaspiro[3,5]nonane-1-carboxylic acid 1-benzyl ester (2.20 g) was mixed with 4-chloro-7H-pyrrolo[2,3-d]pyrimidine (1.17 g), potassium carbonate (3.17 g) and water (12 ml), and the mixture was stirred for 4 hours with refluxing. The mixture was cooled to room temperature, and extracted with chloroform twice. The combined organic layer was washed with water, 10% aqueous sodium chloride solution, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The resulting residue was purified by silica gel column chromatography (eluent: chloroform/ethyl acetate=1/0 to 1/3, followed by chloroform/methanol=95/5) to give the titled compound (2.84 g).

1. temperaturewith refluxing
2. extractionextracted with chloroform twice
3. washThe combined organic layer was washed with water, 10% aqueous sodium chloride solution
4. dry with materialdried over anhydrous magnesium sulfate
5. concentrationconcentrated under reduced pressure
6. customThe resulting residue was purified by silica gel column chromatography (eluent: chloroform/ethyl acetate=1/0 to 1/3, followed by chloroform/methanol=95/5)