Reaktion #2323813

Reaktionsgleichung

4-cyanophenylboronic acid

6-bromo-4-{[4-(4-methyl-piperazin-1-yl)-phenylamino]-methylene}-4H-isoquinoline-1,3-dione

cesium carbonate

→

4-(4-{[4-(4-Methyl-piperazin-1-yl)-phenylamino]-methylene}-1,3-dioxo-1,2,3,4-tetrahydro-isoquinolin-6-yl)-benzonitrile

Ausbeute 29.5%

Lösungsmittel

N,N-dimethylformamide

N,N-dimethylformamide

Reaktionsbedingungen

Aufarbeitung

1. 1
   Sonstigepurified by C18 reverse phase HPLC
2. 2
   Einengenconcentrated

Vorschrift

To a suspension of 6-bromo-4-{[4-(4-methyl-piperazin-1-yl)-phenylamino]-methylene}-4H-isoquinoline-1,3-dione (221 mg, 0.5 mmol) in N,N-dimethylformamide (5 mL) is added 4-cyanophenylboronic acid (88 mg, 0.6 mmol), followed by 300 □L of 2M aqueous cesium carbonate and tetrakis triphenylphosphine palladium (30 mg, 0.06 mmol). The reaction mixture is subjected to microwave heating at 180° C. for 300 seconds. The reaction mixture is then diluted with N,N-dimethylformamide and purified by C18 reverse phase HPLC. The pure fractions were combined and concentrated to yield 4-(4-{[4-(4-Methyl-piperazin-1-yl)-phenylamino]-methylene}-1,3-dioxo-1,2,3,4-tetrahydro-isoquinolin-6-yl)-benzonitrile (68.4 mg).

Quelle