反应详情

温度

60 °C

2.236 g (0.059 mol) lithium aluminum hydride are suspended in 600 ml dry THF at RT. 4-[4-(3-Chloro-benzylamino)-7H-pyrrolo[2,3-d]pyrimidin-6-yl]-benzoic acid ethyl ester (4.8 g, 0.0118 mol) is added in portions over 5 min and the resulting mixture is heated to 60° C. for 1 h. The mixture is cooled in an ice bath to about 10° C. and treated sequentially with THF/water 1:1 (2.24 ml), 15% sodium hydroxide solution (4.48 ml) and water (6.72 ml). The solid aluminum complex is removed by filtration (Hyflo Super Cel®; Fluka, Buchs, Switzerland) and washed thoroughly with THF. The filtrate is concentrated to about 50 ml and the resulting suspension treated with water/ethanol 9:1 (50 ml). After stirring for 10 min the crystals were collected by filtration and dried under reduced pressure to give the title compound; m.p. 296-298° C.; MS-ES+: (M+H)+=365.

1. temperatureThe mixture is cooled in an ice bath to about 10° C.
2. customThe solid aluminum complex is removed by filtration (Hyflo Super Cel®; Fluka, Buchs, Switzerland)
3. washwashed thoroughly with THF
4. concentrationThe filtrate is concentrated to about 50 ml
5. additionthe resulting suspension treated with water/ethanol 9:1 (50 ml)
6. filtrationwere collected by filtration
7. customdried under reduced pressure