Reaktion #46303

Reaktionsgleichung

11-(3-chloro-4-fluorobenzyl)-9-methoxy-2-methyl-5,6,12,13-tetrahydro-2H[1,4]diazocino[2,1-a]-2,6-naphthyridine-1,4,8,10(3H, 1H)-tetrone

pyrrolidine

acetic acid

sodium borohydride

→

title compound

11-(3-Chloro-4-fluorobenzyl)-4-pyrrolidin-1-yl-9-methoxy-2-methyl-3,4,5,6,12,13-hexahydro-2H[1,4]diazocino[2,1-a]-2,6-naphthyridine-1,8,10(11H)-trione

Lösungsmittel

dichloroethane

dichloromethane

Reaktionsbedingungen

Aufarbeitung

1. 1
   TemperaturThe mixture was cooled to room temperature
2. 2
   Waschenwashed successively with aq sodium carbonate and brine
3. 3
   ExtraktionThe organic extract
4. 4
   Trocknenwas dried over anhydrous magnesium sulfate
5. 5
   Filtrationfiltered
6. 6
   Einengenconcentrated under vacuum

Vorschrift

A mixture of 11-(3-chloro-4-fluorobenzyl)-9-methoxy-2-methyl-5,6,12,13-tetrahydro-2H[1,4]diazocino[2,1-a]-2,6-naphthyridine-1,4,8,10(3H, 1H)-tetrone (30 mg, 0.06 mmol), molecular sieves (4A), pyrrolidine (23 mg, 0.32 mmol), and acetic acid (4 mg) in dichloroethane (1 mL) was heated at 80° C. for four hrs. The mixture was cooled to room temperature, treated with sodium borohydride (12 mg, 0.19 mmol), and stirred at room temperature for 30 minutes. The product mixture was diluted with dichloromethane, washed successively with aq sodium carbonate and brine. The organic extract was dried over anhydrous magnesium sulfate, filtered, and concentrated under vacuum to provide the title compound. This material was used in the following step without further purification.

Quelle