Reaktion #11740

Reaktionsgleichung

hydrogen chloride

(5-chloro-2-{2-[4-(4-fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-2-oxo-ethoxy}-benzyloxy)-acetic acid tert-butyl ester

trifluoroacetic acid

→

title compound

(5-Chloro-2-{2-[4-(4-fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-2-oxo-ethoxy}-benzyloxy)-acetic acid

Lösungsmittel

dichloromethane

dichloromethane

Reaktionsbedingungen

Aufarbeitung

1. 1
   EinengenThe mixture was concentrated in vacuo

Vorschrift

To a solution of (5-chloro-2-{2-[4-(4-fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-2-oxo-ethoxy}-benzyloxy)-acetic acid tert-butyl ester (0.14 g, 0.25 mmol) in dichloromethane (5.0 mL) was added trifluoroacetic acid (0.5 mL). The resulting mixture was stirred at ambient temperature overnight, diluted with dichloromethane and treated with excess hydrogen chloride gas. The mixture was concentrated in vacuo to give the title compound as its hydrochloride salt (0.14 g).

Quelle