Reaktion #41737

Reaktionsgleichung

2-{[4-(dimethylamino)phenylamino)-1-methylbenzimidazol-5-yloxy)pyridine-2-carboxylic acid

2-pyrrolidinylethylamine

HBTU

N,N-diisopropylethylamine

→

4-(2-{[4-(dimethylamino)phenyl]amino-1-methylbenzimidazol-5-yloxy)(2-pyridyl)]-N-(2-pyrrolidinylethyl)carboxamide

Lösungsmittel

tetrahydrofuran

Reaktionsbedingungen

Aufarbeitung

1. 1
   EinengenThe mixture was then concentrated
2. 2
   Sonstigepartitioned between ethyl acetate and water
3. 3
   EinengenThe organic layer was concentrated

Vorschrift

To 4-(2-{[4-(dimethylamino)phenylamino)-1-methylbenzimidazol-5-yloxy)pyridine-2-carboxylic acid (1 eq) in tetrahydrofuran was added 2-pyrrolidinylethylamine (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-(dimethylamino)phenyl]amino-1-methylbenzimidazol-5-yloxy)(2-pyridyl)]-N-(2-pyrrolidinylethyl)carboxamide. MS: MH+=498.

Quelle