Water → 5-Amino-2-(2-pyrrolidin-1-yl-ethoxy)-benzoic acid methyl ester

Participants

Reaction Conditions

Reaction Steps

A suspension of 5-amino-2-hydroxy-benzoic acid methyl ester (1.0 g, 6.0 mmol), 1-(2-chloro-ethyl)-pyrrolidine hydrochloride (1.2 g, 7.1 mmol) and cesium carbonate (5.0 g, 15 mmol) in DMF (40 mL) was heated at 60° C. for 17 h. The mixture was allowed to cool to room temperature, poured into water (60 mL) and extracted with EtOAc (2×50 mL). The combined extracts were washed with brine, dried over anhydrous Na2SO4 and filtered. The filtrate was concentrated and the residue purified by flash chromatography on silica gel (DCM to 30% MeOH/DCM) to afford the title compound (0.2 g, 13%) as a light brown solid. MS (ES+): m/z 265 (M+H)+.

Provenance & Evidence