Boron tribromide → 4-Amino-6-bromo-N-(3-fluoro-5-hydroxyphenyl)pyrimidine-5-carboxamide
Reaktionsgleichung
[NH2:1][C:2]1[C:7]([C:8]([NH:10][C:11]2[CH:16]=[C:15]([O:17]C)[CH:14]=[C:13]([F:19])[CH:12]=2)=[O:9])=[C:6](Cl)[N:5]=[CH:4][N:3]=1.B(Br)(Br)[Br:22]>ClCCl>[NH2:1][C:2]1[C:7]([C:8]([NH:10][C:11]2[CH:16]=[C:15]([OH:17])[CH:14]=[C:13]([F:19])[CH:12]=2)=[O:9])=[C:6]([Br:22])[N:5]=[CH:4][N:3]=1Komponenten
4
Versuchsvorschrift
4-Amino-6-chloro-N-(3-fluoro-5-methoxyphenyl)pyrimidine-5-carboxamide (458 mg, 1.54 mmol) was treated with boron tribromide (1M in dichloromethane, 0.46 ml, 4.6 mmol) an using dichloromethane (7 ml) as a solvent according to the method described in Example 23. The solid residue (394 mg, 71% yield) was used in the next synthetic step without further purification. Purity 91%.