Hydrochloric Acid → HCID 53491761, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 3,3-dimethyl-2-(3-methoxy-5-morpholin-4-yl-phenyl)-1,2,3,4-tetrahydro-quinoline-6-carboxylic acid ethyl ester (0.30 g, 0.71 mmol), lithium hydroxide hydrate (0.30 g, 7.1 mmol), water (1 mL) in methanol (2 mL) and tetrahydrofuran (10 mL) was stirred at 60° C. for 12 h. The mixture was neutralized with a 3 N aqueous hydrochloric acid solution and extracted with ethyl acetate (2×50 mL), washed with water, dried over anhydrous sodium sulfate and then concentrated in vacuo to afford an oil residue. Purification by Waters automated flash system (column: Xterra 30 mm×100 mm, sample manager 2767, pump 2525, detector: ZQ mass and UV 2487, solvent system: acetonitrile and 0.1% formic acid in water) afforded 3,3-dimethyl-2-(3-methoxy-5-morpholin-4-yl-phenyl)-1,2,3,4-tetrahydro-quinoline-6-carboxylic acid (200 mg, 31%) as a white solid: LC/MS m/e calcd for C23H28N2O4 (M+H)+: 397.5, observed: 397.3.

Provenance & Evidence