反应详情

2 g (10.58 mmol) of 2,6-dichloro-purine and 5.9 g (52.9 mmol) of 3-fluoro-aniline (Fluka, Buchs, Switzerland) are stirred in 60 ml of n-butanol and 3 ml of DMF at 80° C. for 5 h. The cooled reaction mixture is treated with isopropanol and the crystal mass which has precipitated out is filtered off and dried. 2-Chloro-6-(3-fluoro-phenyl-amino)-purine is obtained; m.p.>250° C.; FAB-MS: (M+H)+=264; Rf=0.3 (CH2Cl2:methanol 9:1).

1. customThe cooled reaction mixture
2. customthe crystal mass which has precipitated out
3. filtrationis filtered off
4. customdried