反应详情

温度

60 °C

An optically-active compound of 3-methyl-6-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1,6-diazaspiro[3.4]octane-1-carboxylic acid tert-butyl ester (9.5 g) was mixed with 4M hydrochloric acid-1,4-dioxane (50 ml), chloroform (50 ml) and methanol (100 ml), and the mixture was stirred at 60° C. for 30 minutes. The mixture was concentrated under reduced pressure, and azeotroped with toluene to give the titled compound (9.3 g).

1. concentrationThe mixture was concentrated under reduced pressure
2. customazeotroped with toluene