Réaction #41743

Équation de réaction

2-{[4-bromo-3-fluorophenylamino)-1-methylbenzimidazol-5-yloxy)pyridine-2-carboxylic acid

2-piperidylethylamine

HBTU

N,N-diisopropylethylamine

→

4-(2-{[4-bromo-3-fluorophenyl]amino-1-methylbenzimidazol-5-yloxy)(2-pyridyl)]-N-(2-piperidylethyl)carboxamide

Solvants

tetrahydrofuran

Conditions de réaction

Traitement

1. 1
   ConcentrationThe mixture was then concentrated
2. 2
   Autrepartitioned between ethyl acetate and water
3. 3
   ConcentrationThe organic layer was concentrated

Mode opératoire

To 4-(2-{[4-bromo-3-fluorophenylamino)-1-methylbenzimidazol-5-yloxy)pyridine-2-carboxylic acid (1 eq) in tetrahydrofuran was added 2-piperidylethylamine (2 eq), HBTU (2 eq) and N,N-diisopropylethylamine (4 eq) and stir at ambient temperature for 16 h. The mixture was then concentrated and partitioned between ethyl acetate and water. The organic layer was concentrated and preparative chromatography yielded [4-(2-{[4-bromo-3-fluorophenyl]amino-1-methylbenzimidazol-5-yloxy)(2-pyridyl)]-N-(2-piperidylethyl)carboxamide. MS: MH+=567.

Source